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Results for "

histamine release inhibitor

" in MedChemExpress (MCE) Product Catalog:

By Targets:	Histamine Receptor (49) 5-HT Receptor (5) Acyltransferase (2) Adrenergic Receptor (3) Akt (2) Amyloid-β (5) Autophagy (4) Btk (1) Calcium Channel (5) Caspase (1) Cholinesterase (ChE) (5) COX (5) CXCR (6) Cytochrome P450 (3) Dengue Virus (4) Dopamine Receptor (5) Drug Derivative (2) Drug Intermediate (1) Drug Metabolite (2) Enterovirus (4) ERK (2) FAP (1) Fc Receptor (FcR) (1) Flavivirus (4) GABA Receptor (1) GnRH Receptor (1) GPR35 (1) GSK-3 (5) Influenza Virus (1) Interleukin Related (4) Isotope-Labeled Compounds (12) JNK (2) Leukotriene Receptor (4) Lipoxygenase (4) Mas-related G-protein-coupled Receptor (MRGPR) (1) NF-κB (10) NO Synthase (2) p38 MAPK (3) Parasite (1) PGE synthase (3) Phosphatase (1) Phosphodiesterase (PDE) (4) Phospholipase (1) PI3K (2) Prostaglandin Receptor (4) Reactive Oxygen Species (ROS) (1) Reference Standards (10) Ser/Thr Protease (2) STAT (1) Target Protein Ligand-Linker Conjugates (1) TNF Receptor (6) Transmembrane Glycoprotein (1)
By Research Areas:	Cancer (14) Cardiovascular Disease (1) Endocrinology (13) Infection (13) Inflammation/Immunology (73) Metabolic Disease (7) Neurological Disease (21)

By Targets:

Histamine Receptor (49)

5-HT Receptor (5)

Acyltransferase (2)

Adrenergic Receptor (3)

Akt (2)

Amyloid-β (5)

Autophagy (4)

Btk (1)

Calcium Channel (5)

Caspase (1)

Cholinesterase (ChE) (5)

COX (5)

CXCR (6)

Cytochrome P450 (3)

Dengue Virus (4)

Dopamine Receptor (5)

Drug Derivative (2)

Drug Intermediate (1)

Drug Metabolite (2)

Enterovirus (4)

ERK (2)

FAP (1)

Fc Receptor (FcR) (1)

Flavivirus (4)

GABA Receptor (1)

GnRH Receptor (1)

GPR35 (1)

GSK-3 (5)

Influenza Virus (1)

Interleukin Related (4)

Isotope-Labeled Compounds (12)

JNK (2)

Leukotriene Receptor (4)

Lipoxygenase (4)

Mas-related G-protein-coupled Receptor (MRGPR) (1)

NF-κB (10)

NO Synthase (2)

p38 MAPK (3)

Parasite (1)

PGE synthase (3)

Phosphatase (1)

Phosphodiesterase (PDE) (4)

Phospholipase (1)

PI3K (2)

Prostaglandin Receptor (4)

Reactive Oxygen Species (ROS) (1)

Reference Standards (10)

Ser/Thr Protease (2)

STAT (1)

Target Protein Ligand-Linker Conjugates (1)

TNF Receptor (6)

Transmembrane Glycoprotein (1)

By Research Areas:

Cancer (14)

Cardiovascular Disease (1)

Endocrinology (13)

Infection (13)

Inflammation/Immunology (73)

Metabolic Disease (7)

Neurological Disease (21)

Inhibitors & Agonists

Peptides

Natural
Products

Isotope-Labeled Compounds

Targets Recommended: Histamine Receptor CRAC Channel

Cat. No.	Product Name	Target	Research Areas	Chemical Structure

HY-17043

Loratadine 10+ Cited Publications Loratidine; SCH 29851	Flavivirus Dengue Virus Histamine Receptor	Infection Inflammation/Immunology Endocrinology Cancer
Loratadine (SCH-29851) is a selective inverse peripheral histamine H1-receptor agonist with an IC50 of >32 μM. Loratadine has anti-dengue-virus (DENV) activity. Loratadine can inhibit immunologic release of inflammatory mediators.

HY-B0320A

Cromolyn disodium 5+ Cited Publications Cromoglycate disodium; Cromoglicic acid disodium; FPL-670	GSK-3 NF-κB Amyloid-β	Neurological Disease Metabolic Disease Inflammation/Immunology Cancer
Cromolyn (Cromoglycate) disodium is an orally active GSK-3β inhibitor with an IC₅₀ of 2.0 μM. Cromolyn disodium is also a mast cell stabilizer that can inhibit the release of mediators from mast cells, regulate reflex bronchoconstriction, and reduce non-specific bronchial hyperreactivity, and Cromolyn disodium can be used in the research of bronchial asthma. In addition, Cromolyn disodium has multiple activities such as anti-inflammatory, anti-allergic, anti-histamine, anti-cancer, and neuroprotective effects .

HY-B0539

Desloratadine Maximum Cited Publications 13 Publications Verification Sch34117	Histamine Receptor TNF Receptor Leukotriene Receptor	Inflammation/Immunology
Desloratadine (Sch34117) is an orally active and selective H1 receptor antagonist (K_i=0.9 nM) with anti-inflammatory and anti-allergic activities. Desloratadine inhibits the release of histamine and LTC4 from human basophils and targets the regulatory signals of IL-4 and IL-13 production in basophils. Desloratadine significantly alleviates SAR symptoms in patients with concurrent asthma and can be used in the study of seasonal allergic rhinitis and chronic idiopathic urticaria .

HY-12206

Thioperamide 3 Publications Verification MR-12842	Histamine Receptor	Neurological Disease
Thioperamide (MR-12842) is a potent, orally available, brain penetrant and selective H3 receptor antagonist with a K_i of 4.3 nM for inhibition of [ ³H]histamine release. Thioperamide inhibits [ ³H]histamine synthesis with a K_i of 31 nM .

HY-130592

Compound 48/80 trihydrochloride 5 Publications Verification C48/80 trihydrochloride	Phospholipase	Neurological Disease
Compound 48/80 trihydrochloride (C48/80 trihydrochloride) is a mixture of condensation products of N-methyl-p-methoxyphenethylamine with formaldehyde. Compound 48/80 trihydrochloride is also a *histamine* releaser and a mast cell degranulator. Compound 48/80 inhibits phosphatidylinositol-specific phospholipase C activity from human platelets .

HY-N0631

Cornuside 5+ Cited Publications	p38 MAPK NF-κB JNK Cholinesterase (ChE) Acyltransferase NO Synthase Interleukin Related TNF Receptor Prostaglandin Receptor ERK COX	Neurological Disease Inflammation/Immunology
Cornuside is an iridoid glycoside with anti-allergic, anti-inflammatory, and neuroprotective activities. Cornuside exerts anti-allergic activity by downregulating the p38 MAPK, JNK, and NF-κB signaling pathways, and inhibits IgE-mediated histamine release from mast cells. Cornuside improves cognitive impairment in mice by inhibiting BACE1 activity (IC₅₀ = 55.84 μg/mL) and enhancing ChAT activity. Cornuside inhibits LPS (HY-D1056)-induced inflammatory mediators, including iNOS, COX-2, PGE2, TNF-α, IL-6, and IL-1β, by suppressing NF-κB activation .

HY-N2081

Skimmianine 3 Publications Verification	Cholinesterase (ChE) PI3K Akt NF-κB	Neurological Disease Inflammation/Immunology Cancer
Skimmianine is an orally active furoquiniline alkaloid present mainly in the Rutaceae family. Skimmianine has analgesic, antispastic, sedative, and anti-inflammatory properties. Skimmianine inhibits acetylcholinesterase (AChE) (IC₅₀ = 8.6 μg/mL). Skimmianine exhibits cytotoxicity against a variety of cancer cell lines and genotoxicity. Skimmianine has antioxidant and anti-inflammatory effects on ischemia-reperfusion (IR) injury. Skimmianine exerts anti-inflammatory effects through activation of the phosphatidylinositol-3-kinase (PI3K)-protein kinase B (AKT) pathway. Skimmianine is neuroprotective by targeting the NF-κB activation pathway to prevent neuroinflammation. Skimmianine inhibits the release of histamine, intracellular Ca ²⁺ signaling and protein kinase C signaling .

HY-B1619

Cromolyn 5+ Cited Publications Cromoglycate; Cromoglicic acid; FPL-670 free acid	GSK-3 NF-κB Amyloid-β	Neurological Disease Metabolic Disease Inflammation/Immunology Cancer
Cromolyn (Cromoglycate) is an orally active GSK-3β inhibitor with an IC₅₀ of 2.0 μM. Cromolyn is also a mast cell stabilizer that can inhibit the release of mediators from mast cells, regulate reflex bronchoconstriction, and reduce non-specific bronchial hyperreactivity, and Cromolyn can be used in the research of bronchial asthma. In addition, Cromolyn has multiple activities such as anti-inflammatory, anti-allergic, anti-histamine, anti-cancer, and neuroprotective effects .

HY-B1693

Levomepromazine 1 Publications Verification Methotrimeprazine	5-HT Receptor Dopamine Receptor Histamine Receptor Autophagy Enterovirus Calcium Channel	Infection Neurological Disease Inflammation/Immunology
Levomepromazine (Methotrimeprazine) is an orally active antipsychotic compound and Ca ²⁺ release inducer. Levomepromazine inhibits SERCA pump and induces an increase in cytoplasmic Ca ²⁺ levels. Levomepromazine has antagonistic effects on a variety of neurotransmitter receptors, including dopamine, cholinergic, serotonin, and histamine receptors. Levomepromazine can induce adaptive ER stress and autophagy. In addition, Levomepromazine has antiviral, anti-inflammatory, neuroprotective and analgesic, sedative and anti-injurious activities. Levomepromazine can be used in the study psychiatric disorders and relieving nausea and vomiting .

HY-13568

Benoxaprofen LRCL 3794	Cytochrome P450 COX Lipoxygenase PGE synthase	Inflammation/Immunology
Benoxaprofen (LRCL 3794) is a nonsteroidal anti-inflammatory agent that blocks the biosynthesis of inflammatory mediators such as leukotrienes and prostaglandins by inhibiting 5-LOX, PGH2 synthase and cytochrome P-450. Benoxaprofen exhibits significant toxicity: it not only alters cellular redox status, uncouples oxidative phosphorylation and disrupts calcium ion homeostasis, but also causes liver injury through the formation of covalent adducts between its active metabolites and hepatic proteins. Benoxaprofen shows strong phototoxicity under ultraviolet irradiation, and induces erythrocyte lysis, mast cell degranulation and histamine release. Benoxaprofen is widely used in studies of urticaria and related phototoxic mechanisms .

HY-B0426A

Olopatadine hydrochloride ALO4943A; KW4679	Histamine Receptor CXCR	Infection Neurological Disease Metabolic Disease Inflammation/Immunology
Olopatadine hydrochloride (ALO4943A; KW4679) is an orally active histamine H1 receptor antagonist and mast cell stabilizer. Olopatadine hydrochloride exerts antiallergic effects by blocking histamine H1 receptor-mediated activities. Olopatadine hydrochloride inhibits exocytosis, chemokine release, F-actin polymerization, CXCL10-induced calcium influx, and T cell chemotactic activity. Olopatadine hydrochloride also reduces the expression levels of CXCR3 on the surface of CD4 ⁺ and CD8 ⁺ T cells. Olopatadine hydrochloride inhibits scratching behavior, improves dermatitis scores, and suppresses intraepidermal neurite outgrowth. Olopatadine hydrochloride simultaneously decreases the levels of inflammatory markers, growth factors, histamine, and specific IgE, while increasing the expression of ErbB3A/HER3A. Olopatadine hydrochloride can be used in research related to seasonal pollinosis, chronic rhinitis, urticaria, allergic conjunctivitis, alopecia areata, and atopic dermatitis .

HY-43521

Ibrutinib-MPEA	Target Protein Ligand-Linker Conjugates Btk STAT	Inflammation/Immunology Cancer
Ibrutinib-MPEA is an orally active, blood-brain barrier permeable inhibitor of BTK and STAT5. As a derivative of Ibrutinib (HY-10997) conjugated with a PROTAC linker, Ibrutinib-MPEA allows the synthesis of a series of PROTAC molecules. Ibrutinib-MPEA significantly reduces the proliferation of neoplastic mast cells and primary mastocytoma cells by inducing apoptosis and inhibiting IgE-dependent histamine release. Ibrutinib-MPEA is applicable to the research of canine mast cell tumors, cerebral ischemia/reperfusion injury in diabetic mice, and neuroinflammation-related diseases .

HY-12206A

Thioperamide maleate 3 Publications Verification MR-12842 maleate	Histamine Receptor	Neurological Disease
Thioperamide maleate (MR-12842 maleate) is a potent, orally available, brain penetrant and selective H3 receptor antagonist with a K_i of 4.3 nM for inhibition of [ ³H]histamine release. Thioperamide maleate inhibits [ ³H]histamine synthesis with a K_i of 31 nM .

HY-135490

Reproterol	Adrenergic Receptor Phosphodiesterase (PDE)	Inflammation/Immunology
Reproterol is a selective β2-adrenoceptor agonist and cAMP phosphodiesterase (PDE) inhibitor. Reproterol inhibits adenylate cyclase-induced phosphodiesterase activity. Reproterol inhibits histamine release from mast cells. Reproterol is applicable to research related to asthma .

HY-172458

Z-3578 1 Publications Verification	Mas-related G-protein-coupled Receptor (MRGPR) TNF Receptor	Inflammation/Immunology
Z-3578 is an orally active small-molecule antagonist of MrgX2 with potent antipseudoallergic activity, exhibiting a K_D value of 729 nM. Z-3578 effectively inhibits mast cell degranulation induced by substance P (SP) and C48/80, suppresses the release of β-hexosaminidase, significantly reduces the release of histamine and TNF-α, and decreases intracellular calcium flux. In a mouse pseudoallergy model, Z-3578 significantly alleviates paw swelling and dye extravasation, and reduces serum histamine levels. Z-3578 can be used for the study of pseudoallergic reactions .

HY-17043S1

Loratadine-d5 Loratidine-d₅; SCH 29851-d₅	Isotope-Labeled Compounds Histamine Receptor	Infection Inflammation/Immunology Endocrinology
Loratadine-d₅ is the deuterium labeled Loratadine. Loratadine (SCH-29851) is a selective inverse peripheral histamine H1-receptor agonist with an IC50 of >32 μM. Loratadine has anti-dengue-virus (DENV) activity. Loratadine can inhibit immunologic release of inflammatory mediators.

HY-W062109

Olopatadine	Histamine Receptor CXCR	Inflammation/Immunology
Olopatadine (ALO4943A; KW4679) is an orally active histamine H1 receptor antagonist and mast cell stabilizer. Olopatadine exerts antiallergic effects by blocking histamine H1 receptor-mediated activities. Olopatadine inhibits exocytosis, chemokine release, F-actin polymerization, CXCL10-induced calcium influx, and T cell chemotactic activity. Olopatadine also reduces the expression levels of CXCR3 on the surface of CD4 ⁺ and CD8 ⁺ T cells. Olopatadine inhibits scratching behavior, improves dermatitis scores, and suppresses intraepidermal neurite outgrowth. Olopatadine simultaneously decreases the levels of inflammatory markers, growth factors, histamine, and specific IgE, while increasing the expression of ErbB3A/HER3A. Olopatadine can be used in research related to seasonal pollinosis, chronic rhinitis, urticaria, allergic conjunctivitis, alopecia areata, and atopic dermatitis .

HY-N10182

Spinacetin 1 Publications Verification	Histamine Receptor	Inflammation/Immunology
Spinacetin is a natural product that can be isolated from Inula japonica. Spinacetin inhibits the release of *histamine*. Spinacetin has anti-inflammatory activity .

HY-109544

Repirinast MY-5116	Histamine Receptor	Inflammation/Immunology
Repirinast (MY-5116) is an orally active anti-allergic agent. Repirinast inhibits histamine release. Repirinast can be used in the research of bronchial asthma .

HY-137941

Roxatidine	Histamine Receptor Caspase NF-κB p38 MAPK	Inflammation/Immunology
Roxatidine is an active metabolite of Roxatidine acetate hydrochloride, is an orally active histamine H2-receptor antagonist. Roxatidine, an anti-ulcer agent, suppresses histamine release (thus inhibiting proton secretion) and inhibits the production of VEGF-1, an important marker of inflammation and angiogenesis. Anti-allergic inflammatory effect. Roxatidine is promising for research of gastric and duodenal ulcers .

HY-N3007A

(E)-Naringenin chalcone	Others	Inflammation/Immunology
(E)-Naringenin chalcone is an orally active anti-allergic agent. (E)-Naringenin chalcone also has antioxidant, anti-inflammatory activities. (E)-Naringenin chalcone can improve adipocyte functions. (E)-Naringenin chalcone inhibits histamine release from rat peritoneal mast cell .

HY-17043R

Loratadine (Standard) Loratidine (Standard); SCH 29851 (Standard)	Dengue Virus Flavivirus Reference Standards Histamine Receptor	Infection Inflammation/Immunology Endocrinology Cancer
Loratadine (Standard) is the analytical standard of Loratadine. This product is intended for research and analytical applications. Loratadine (SCH-29851) is a selective inverse peripheral histamine H1-receptor agonist with an IC50 of >32 μM. Loratadine has anti-dengue-virus (DENV) activity. Loratadine can inhibit immunologic release of inflammatory mediators.

HY-106481

Bufrolin	GPR35 Histamine Receptor	Inflammation/Immunology
Bufrolin is a Cromoglycate (histamine release inhibitor) analog and a high potency agonist of GPR35. Bufrolin promotes interactions between β-arrestin-2 and either human GPR35a or rat GPR35. Bufrolin also serves as antiallergic mast cell stabilizer and inhibit an anti-inflammatory response inducible by the internalization peptide. Bufrolin acts as an anti-inflammatory agent to be used in research of delivering pharmacol linked with internalization peptide .

HY-N15663

(-)-Epigallocatechin-3-O-(4-O-methyl)gallate EGCG4′′Me	Drug Derivative	Inflammation/Immunology
(-)-Epigallocatechin-3-O-(4-O-methyl)gallate is an orally active catechin derivative found in Taiwanese oolong tea. (-)-Epigallocatechin-3-O-(4-O-methyl)gallate can inhibit histamine release and exhibits anti-inflammation and anti-allergic effect. (-)-Epigallocatechin-3-O-(4-O-methyl)gallate can be used for the researches of immunology and inflammation, such as type I allergic .

HY-U00027

Quinotolast sodium FR71021	Histamine Receptor Leukotriene Receptor Prostaglandin Receptor	Inflammation/Immunology Endocrinology
Quinotolast sodium in the concentration range of 1-100 μg/mL inhibits *histamine, LTC₄* and PGD₂ release in a concentration-dependent manner.

HY-B0320AR

Cromolyn disodium (Standard) Cromoglycate disodium (Standard); Cromoglicic acid disodium (Standard); FPL-670 (Standard)	Reference Standards GSK-3 NF-κB Amyloid-β	Neurological Disease Metabolic Disease Inflammation/Immunology Cancer
Cromolyn disodium (Standard) (Cromoglycate disodium (Standard)) is the analytical standard of Cromolyn disodium (HY-B0320A). This product is intended for research and analytical applications. Cromolyn (Cromoglycate) disodium is an orally active GSK-3β inhibitor with an IC₅₀ of 2.0 μM. Cromolyn disodium is also a mast cell stabilizer that can inhibit the release of mediators from mast cells, regulate reflex bronchoconstriction, and reduce non-specific bronchial hyperreactivity, and Cromolyn disodium can be used in the research of bronchial asthma. In addition, Cromolyn disodium has multiple activities such as anti-inflammatory, anti-allergic, anti-histamine, anti-cancer, and neuroprotective effects .

HY-13218

Acitazanolast WP-871	Histamine Receptor	Inflammation/Immunology
Acitazanolast is an orally active antiallergic agent, can inhibit histamine release. Acitazanolast can be used in study of type I anaphylaxis (immediate) caused by IgE antibodies .

HY-N3421

Koaburaside	Interleukin Related TNF Receptor Influenza Virus	Infection Inflammation/Immunology Cancer
Koaburaside is a cytoprotective and anti-inflammatory natural compound. Koaburaside shows antioxidant activity with an IC₅₀ of 9.0 μM for DPPH-free radical scavenging assay. Koaburaside inhibits *histamine* release and expressions of IL-6 and TNF-α in human mast cells. Koaburaside also effectively inhibits influenza A neuraminidase .

HY-W062109S

Olopatadine-d6	Isotope-Labeled Compounds Histamine Receptor CXCR	Inflammation/Immunology
Olopatadine-d₆ is the deuterium labeled Olopatadine. Olopatadine hydrochloride (ALO4943A; KW4679) is an orally active histamine H1 receptor antagonist and mast cell stabilizer. Olopatadine hydrochloride exerts antiallergic effects by blocking histamine H1 receptor-mediated activities. Olopatadine hydrochloride inhibits exocytosis, chemokine release, F-actin polymerization, CXCL10-induced calcium influx, and T cell chemotactic activity. Olopatadine hydrochloride also reduces the expression levels of CXCR3 on the surface of CD4 ⁺ and CD8 ⁺ T cells. Olopatadine hydrochloride inhibits scratching behavior, improves dermatitis scores, and suppresses intraepidermal neurite outgrowth. Olopatadine hydrochloride simultaneously decreases the levels of inflammatory markers, growth factors, histamine, and specific IgE, while increasing the expression of ErbB3A/HER3A. Olopatadine hydrochloride can be used in research related to seasonal pollinosis, chronic rhinitis, urticaria, allergic conjunctivitis, alopecia areata, and atopic dermatitis .

HY-13405

Tiaramide hydrochloride RHC 2592-A	Histamine Receptor	Inflammation/Immunology
Tiaramide (RHC 2592-A) hydrochloride is an analgesic agent with antiallergic activity, and is also a non-steroidal, anti-inflammatory compound. Tiaramide hydrochloride inhibits histamine release .

HY-137090

BP 2-94 BP 2.94	Histamine Receptor	Neurological Disease
BP 2-94 (BP 2.94) is an orally active and highly selective prodrug targeting the histamine H3 receptor. BP 2-94 exerts anti-inflammatory, analgesic and antinociceptive effects by inhibiting histamine release and modulating neurogenic inflammation. BP 2-94 is promising for research of asthma, migraines, and inflammatory pain-related disorders .

HY-U00364

CI-949	Histamine Receptor Prostaglandin Receptor Leukotriene Receptor	Inflammation/Immunology Endocrinology
CI-949 is an allergic mediator release inhibitor, which inhibits *histamine, leukotriene C₄/D₄ (LTC₄/LTD₄), and thromboxane B₂ (TXB₂)* release with IC₅₀s of 11.4 μM, 0.5 μM and 0.1 μM, respectively.

HY-N13148

Ganodermatriol	Others	Others
Ganodermatriol is a lanostane type triterpenoid compound derived from Ganoderma lucidum. These compounds have been reported to possess various biological activities, such as inhibiting histamine release from rat mast cells and exhibiting anti-hepatoma cell activity in vitro .

HY-N3622

Corchoionoside C (6S,9S)-Roseoside	Others	Inflammation/Immunology
Corchoionoside C ((6S,9S)-Roseoside), an ionone glucoside, can be isolated from Capparis spinosa. Corchoionoside C inhibits the antigen-antibody reaction induced histamine release from rat peritoneal exudate cells .

HY-14271

Acreozast TYB-2285	Histamine Receptor	Inflammation/Immunology
Acreozast (TYB-2285) is a histamine release inhibitor. Acreozast inhibits the histamine release primed with IL-3. Acreozast might regulate allergic inflammation in vivo by the suppression of mediator release primed with IL-3 .

HY-105505

KF-17625	Phosphodiesterase (PDE) Histamine Receptor	Inflammation/Immunology
KF-17625 is an orally active bronchodilator. KF-17625 can inhibit bronchoconstriction induced by Carbachol (HY-B1208), Histamine (HY-B1204), or Leukotriene D4 (HY-113456). KF-17625 can inhibit canine tracheal phosphodiesterase (PDE) IV (IC₅₀ = 12 μM) and Concanavalin-A (HY-P2149)-induced *histamine* release from rat mast cells (44% inhibition at 10 mM). KF-17625 can be used for the researches of immunology and inflammation .

HY-B0640S

Epinastine-13C,d3 hydrobromide WAL801-13C,d3 hydrobromide	Isotope-Labeled Compounds Histamine Receptor Transmembrane Glycoprotein Interleukin Related	Inflammation/Immunology Endocrinology
Epinastine- ¹³C,d₃ (hydrobromide) is the ¹³C- and deuterium labeled Epinastine. Epinastine (WAL801) is an antihistamine and mast cell stabilizer. Epinastine is a potent, selective and orally-active histamine H1 receptor antagonist. Epinastine also inhibits IL-8 release and has an antiallergic action .

HY-B0426AS

Olopatadine-d3 hydrochloride	Isotope-Labeled Compounds Histamine Receptor CXCR	Inflammation/Immunology Endocrinology
Olopatadine-d₃ hydrochloride (ALO4943A-d₃) is the deuterium labeled Olopatadine hydrochloride. Olopatadine hydrochloride (ALO4943A; KW4679) is an orally active histamine H1 receptor antagonist and mast cell stabilizer. Olopatadine hydrochloride exerts antiallergic effects by blocking histamine H1 receptor-mediated activities. Olopatadine hydrochloride inhibits exocytosis, chemokine release, F-actin polymerization, CXCL10-induced calcium influx, and T cell chemotactic activity. Olopatadine hydrochloride also reduces the expression levels of CXCR3 on the surface of CD4 ⁺ and CD8 ⁺ T cells. Olopatadine hydrochloride inhibits scratching behavior, improves dermatitis scores, and suppresses intraepidermal neurite outgrowth. Olopatadine hydrochloride simultaneously decreases the levels of inflammatory markers, growth factors, histamine, and specific IgE, while increasing the expression of ErbB3A/HER3A. Olopatadine hydrochloride can be used in research related to seasonal pollinosis, chronic rhinitis, urticaria, allergic conjunctivitis, alopecia areata, and atopic dermatitis .

HY-B0426AR

Olopatadine hydrochloride (Standard) ALO4943A (Standard); KW4679 (Standard)	Reference Standards Histamine Receptor CXCR	Inflammation/Immunology Endocrinology
Olopatadine (hydrochloride) (Standard) is the analytical standard of Olopatadine (hydrochloride). This product is intended for research and analytical applications. Olopatadine hydrochloride (ALO4943A; KW4679) is an orally active histamine H1 receptor antagonist and mast cell stabilizer. Olopatadine hydrochloride exerts antiallergic effects by blocking histamine H1 receptor-mediated activities. Olopatadine hydrochloride inhibits exocytosis, chemokine release, F-actin polymerization, CXCL10-induced calcium influx, and T cell chemotactic activity. Olopatadine hydrochloride also reduces the expression levels of CXCR3 on the surface of CD4 ⁺ and CD8 ⁺ T cells. Olopatadine hydrochloride inhibits scratching behavior, improves dermatitis scores, and suppresses intraepidermal neurite outgrowth. Olopatadine hydrochloride simultaneously decreases the levels of inflammatory markers, growth factors, histamine, and specific IgE, while increasing the expression of ErbB3A/HER3A. Olopatadine hydrochloride can be used in research related to seasonal pollinosis, chronic rhinitis, urticaria, allergic conjunctivitis, alopecia areata, and atopic dermatitis .

HY-B1619R

Cromolyn (Standard) Cromoglycate (Standard); Cromoglicic acid (Standard); FPL-670 free acid (Standard)	GSK-3 NF-κB Amyloid-β Reference Standards	Neurological Disease Metabolic Disease Inflammation/Immunology Cancer
Cromolyn (Standard) is the analytical standard of Cromolyn. This product is intended for research and analytical applications. Cromolyn (Cromoglycate) is an orally active GSK-3β inhibitor with an IC50 of 2.0 μM. Cromolyn is also a mast cell stabilizer that can inhibit the release of mediators from mast cells, regulate reflex bronchoconstriction, and reduce non-specific bronchial hyperreactivity, and Cromolyn can be used in the research of bronchial asthma. In addition, Cromolyn has multiple activities such as anti-inflammatory, anti-allergic, anti-histamine, anti-cancer, and neuroprotective effects .

HY-B1693A

Levomepromazine hydrochloride Methotrimeprazine hydrochloride	5-HT Receptor Dopamine Receptor Histamine Receptor Autophagy Enterovirus Calcium Channel	Infection Neurological Disease Inflammation/Immunology
Levomepromazine (Methotrimeprazine) hydrochloride is an orally active antipsychotic compound and Ca ²⁺ release inducer. Levomepromazine inhibits SERCA pump and induces an increase in cytoplasmic Ca ²⁺ levels. Levomepromazine hydrochloride has antagonistic effects on a variety of neurotransmitter receptors, including dopamine, cholinergic, serotonin, and histamine receptors. Levomepromazine hydrochloride can induce adaptive ER stress and autophagy. In addition, Levomepromazine hydrochloride has antiviral, anti-inflammatory, neuroprotective and analgesic, sedative and anti-injurious activities. Levomepromazine hydrochloride can be used in the study psychiatric disorders and relieving nausea and vomiting .

HY-B1693R

Levomepromazine (Standard) Methotrimeprazine (Standard)	Reference Standards 5-HT Receptor Dopamine Receptor Autophagy Histamine Receptor Enterovirus Calcium Channel	Infection Neurological Disease Inflammation/Immunology
Levomepromazine (Standard) is the analytical standard of Levomepromazine. This product is intended for research and analytical applications. Levomepromazine (Methotrimeprazine) is an orally active antipsychotic compound and Ca ²⁺ release inducer. Levomepromazine inhibits SERCA pump and induces an increase in cytoplasmic Ca ²⁺ levels. Levomepromazine has antagonistic effects on a variety of neurotransmitter receptors, including dopamine, cholinergic, serotonin, and histamine receptors. Levomepromazine can induce adaptive ER stress and autophagy. In addition, Levomepromazine has antiviral, anti-inflammatory, neuroprotective and analgesic, sedative and anti-injurious activities. Levomepromazine can be used in the study psychiatric disorders and relieving nausea and vomiting .

HY-N2081R

Skimmianine (Standard)	Reference Standards Cholinesterase (ChE) PI3K Akt NF-κB	Neurological Disease Inflammation/Immunology Cancer
Skimmianine (Standard) is the analytical standard of Skimmianine. This product is intended for research and analytical applications. Skimmianine is an orally active furoquiniline alkaloid present mainly in the Rutaceae family. Skimmianine has analgesic, antispastic, sedative, and anti-inflammatory properties. Skimmianine inhibits acetylcholinesterase (AChE) (IC₅₀ = 8.6 μg/mL). Skimmianine exhibits cytotoxicity against a variety of cancer cell lines and genotoxicity. Skimmianine has antioxidant and anti-inflammatory effects on ischemia-reperfusion (IR) injury. Skimmianine exerts anti-inflammatory effects through activation of the phosphatidylinositol-3-kinase (PI3K)-protein kinase B (AKT) pathway. Skimmianine is neuroprotective by targeting the NF-κB activation pathway to prevent neuroinflammation. Skimmianine inhibits the release of histamine, intracellular Ca ²⁺ signaling and protein kinase C signaling .

HY-163061

Quinotolast	Histamine Receptor	Inflammation/Immunology
Quinotolast is an orally active antiallergic agent. Quinotolast inhibits histamine release from rat peritoneal cells. Quinotolast inhibits cutaneous cromoglycate in guinea pig model. Quinotolast has inhibitory effect on histamine and peptide leukotrienes release from guinea pig lung fragments and mouse cultured mast cells. Quinotolast can be studied in allergy-related research .

HY-106076

REV 2871 Eclazolast; CHBZ	Histamine Receptor	Inflammation/Immunology
REV 2871 (Eclazolast; CHBZ) is a potent and oral activity antiallergic agent. REV 2871 also is an irreversibility histamine release (HR) inhibitor .

HY-N12295

Ciwujianoside D1	Others	Inflammation/Immunology
Ciwujianoside D1 is a natural product that can inhibit histamine release induced by anti-immunoglobulin E from rat peritoneal mast cells .

HY-N15704

Cassiaside C2	Histamine Receptor	Inflammation/Immunology
Cassiaside C2 is a naphthopyrone with a strong antiallergic activity. Cassiaside C2 inhibits the histamine release from rat peritoneal exudate mast cells induced by antigen-antibody reaction .

HY-137941R

Roxatidine (Standard)	Reference Standards Histamine Receptor	Inflammation/Immunology
Roxatidine (Standard) is the analytical standard of Roxatidine. This product is intended for research and analytical applications. Roxatidine is an active metabolite of Roxatidine acetate hydrochloride, is a histamine H2-receptor antagonist. Roxatidine, an anti-ulcer agent, suppresses histamine release (thus inhibiting proton secretion) and inhibits the production of VEGF-1, an important marker of inflammation and angiogenesis. Anti-allergic inflammatory effect .

HY-137787R

Cyanosafracin B (Standard)	Drug Intermediate Reference Standards	Others
Nylidrin (hydrochloride) (Standard) is the analytical standard of Nylidrin (hydrochloride). This product is intended for research and analytical applications. Nylidrin hydrochloride is an inhibitor of IgE-mediated histamine release in passive sensitized rat peritoneal mast cells, and it has anti-allergic effects.

$Cyanosafracin B (Standard)$

HY-P3317

Azaline Azaline A	GnRH Receptor	Endocrinology
Azaline (Azaline A) is a gonadotropin-releasing hormone (GnRH) receptor antagonist with a K_D value of 0.48 nM. Azaline can effectively induce histamine release, with an effect comparable to that of GnRH, and it can completely inhibit ovulation at a dose of 2.0-3.0 μg per female rat. Azaline has potential applications in regulating reproductive functions .

Cat. No.	Product Name	Target	Research Area

HY-P3317

Azaline Azaline A	GnRH Receptor	Endocrinology
Azaline (Azaline A) is a gonadotropin-releasing hormone (GnRH) receptor antagonist with a K_D value of 0.48 nM. Azaline can effectively induce histamine release, with an effect comparable to that of GnRH, and it can completely inhibit ovulation at a dose of 2.0-3.0 μg per female rat. Azaline has potential applications in regulating reproductive functions .

Cat. No.	Product Name	Category	Target	Chemical Structure

HY-B0539

Desloratadine Maximum Cited Publications 13 Publications Verification Sch34117	Structural Classification Natural Products Classification of Application Fields Endogenous metabolite Disease Research Fields Endocrinology	Histamine Receptor TNF Receptor Leukotriene Receptor
Desloratadine (Sch34117) is an orally active and selective H1 receptor antagonist (K_i=0.9 nM) with anti-inflammatory and anti-allergic activities. Desloratadine inhibits the release of histamine and LTC4 from human basophils and targets the regulatory signals of IL-4 and IL-13 production in basophils. Desloratadine significantly alleviates SAR symptoms in patients with concurrent asthma and can be used in the study of seasonal allergic rhinitis and chronic idiopathic urticaria .

HY-N0631

Cornuside 5+ Cited Publications	Structural Classification Iridoids Cornaceae Classification of Application Fields Cornus officinalis Sieb. et Zucc. Terpenoids Phenols Polyphenols Plants Inflammation/Immunology Disease Research Fields Source Classification	p38 MAPK NF-κB JNK Cholinesterase (ChE) Acyltransferase NO Synthase Interleukin Related TNF Receptor Prostaglandin Receptor ERK COX
Cornuside is an iridoid glycoside with anti-allergic, anti-inflammatory, and neuroprotective activities. Cornuside exerts anti-allergic activity by downregulating the p38 MAPK, JNK, and NF-κB signaling pathways, and inhibits IgE-mediated histamine release from mast cells. Cornuside improves cognitive impairment in mice by inhibiting BACE1 activity (IC₅₀ = 55.84 μg/mL) and enhancing ChAT activity. Cornuside inhibits LPS (HY-D1056)-induced inflammatory mediators, including iNOS, COX-2, PGE2, TNF-α, IL-6, and IL-1β, by suppressing NF-κB activation .

HY-N2081

Skimmianine 3 Publications Verification	Alkaloids Classification of Application Fields Rutaceae Quinoline Alkaloids Plants Skimmia reevesiana Fort. Inflammation/Immunology Disease Research Fields Source Classification	Cholinesterase (ChE) PI3K Akt NF-κB
Skimmianine is an orally active furoquiniline alkaloid present mainly in the Rutaceae family. Skimmianine has analgesic, antispastic, sedative, and anti-inflammatory properties. Skimmianine inhibits acetylcholinesterase (AChE) (IC₅₀ = 8.6 μg/mL). Skimmianine exhibits cytotoxicity against a variety of cancer cell lines and genotoxicity. Skimmianine has antioxidant and anti-inflammatory effects on ischemia-reperfusion (IR) injury. Skimmianine exerts anti-inflammatory effects through activation of the phosphatidylinositol-3-kinase (PI3K)-protein kinase B (AKT) pathway. Skimmianine is neuroprotective by targeting the NF-κB activation pathway to prevent neuroinflammation. Skimmianine inhibits the release of histamine, intracellular Ca ²⁺ signaling and protein kinase C signaling .

HY-B0426A

Olopatadine hydrochloride ALO4943A; KW4679	Structural Classification Alkaloids Classification of Application Fields Ketones, Aldehydes, Acids Other Alkaloids Endogenous metabolite Inflammation/Immunology Disease Research Fields Source Classification	Histamine Receptor CXCR
Olopatadine hydrochloride (ALO4943A; KW4679) is an orally active histamine H1 receptor antagonist and mast cell stabilizer. Olopatadine hydrochloride exerts antiallergic effects by blocking histamine H1 receptor-mediated activities. Olopatadine hydrochloride inhibits exocytosis, chemokine release, F-actin polymerization, CXCL10-induced calcium influx, and T cell chemotactic activity. Olopatadine hydrochloride also reduces the expression levels of CXCR3 on the surface of CD4 ⁺ and CD8 ⁺ T cells. Olopatadine hydrochloride inhibits scratching behavior, improves dermatitis scores, and suppresses intraepidermal neurite outgrowth. Olopatadine hydrochloride simultaneously decreases the levels of inflammatory markers, growth factors, histamine, and specific IgE, while increasing the expression of ErbB3A/HER3A. Olopatadine hydrochloride can be used in research related to seasonal pollinosis, chronic rhinitis, urticaria, allergic conjunctivitis, alopecia areata, and atopic dermatitis .

HY-W062109

Olopatadine	Structural Classification Alkaloids Classification of Application Fields Other Alkaloids Endogenous metabolite Inflammation/Immunology Disease Research Fields Source Classification	Histamine Receptor CXCR
Olopatadine (ALO4943A; KW4679) is an orally active histamine H1 receptor antagonist and mast cell stabilizer. Olopatadine exerts antiallergic effects by blocking histamine H1 receptor-mediated activities. Olopatadine inhibits exocytosis, chemokine release, F-actin polymerization, CXCL10-induced calcium influx, and T cell chemotactic activity. Olopatadine also reduces the expression levels of CXCR3 on the surface of CD4 ⁺ and CD8 ⁺ T cells. Olopatadine inhibits scratching behavior, improves dermatitis scores, and suppresses intraepidermal neurite outgrowth. Olopatadine simultaneously decreases the levels of inflammatory markers, growth factors, histamine, and specific IgE, while increasing the expression of ErbB3A/HER3A. Olopatadine can be used in research related to seasonal pollinosis, chronic rhinitis, urticaria, allergic conjunctivitis, alopecia areata, and atopic dermatitis .

HY-N10182

Spinacetin 1 Publications Verification	Phyllodium pulchellum (L.) Desv. Flavonols Flavonoids Plants Compositae Source Classification	Histamine Receptor
Spinacetin is a natural product that can be isolated from Inula japonica. Spinacetin inhibits the release of *histamine*. Spinacetin has anti-inflammatory activity .

HY-N3007A

(E)-Naringenin chalcone	Phenols Polyphenols Solanum lycopersicum L. Solanaceae Plants	Others
(E)-Naringenin chalcone is an orally active anti-allergic agent. (E)-Naringenin chalcone also has antioxidant, anti-inflammatory activities. (E)-Naringenin chalcone can improve adipocyte functions. (E)-Naringenin chalcone inhibits histamine release from rat peritoneal mast cell .

HY-N15663

(-)-Epigallocatechin-3-O-(4-O-methyl)gallate EGCG4′′Me	Structural Classification Phenols Polyphenols Camellia sinensis (L.) O. Ktze. Plants Source Classification Theaceae	Drug Derivative
(-)-Epigallocatechin-3-O-(4-O-methyl)gallate is an orally active catechin derivative found in Taiwanese oolong tea. (-)-Epigallocatechin-3-O-(4-O-methyl)gallate can inhibit histamine release and exhibits anti-inflammation and anti-allergic effect. (-)-Epigallocatechin-3-O-(4-O-methyl)gallate can be used for the researches of immunology and inflammation, such as type I allergic .

HY-N3421

Koaburaside	Eucommia ulmoides Oliver Eucommiaceae Plants Saccharides Monosaccharides Source Classification	Interleukin Related TNF Receptor Influenza Virus
Koaburaside is a cytoprotective and anti-inflammatory natural compound. Koaburaside shows antioxidant activity with an IC₅₀ of 9.0 μM for DPPH-free radical scavenging assay. Koaburaside inhibits *histamine* release and expressions of IL-6 and TNF-α in human mast cells. Koaburaside also effectively inhibits influenza A neuraminidase .

HY-N13148

Ganodermatriol	Triterpenes Structural Classification Microorganisms Terpenoids Source Classification	Others
Ganodermatriol is a lanostane type triterpenoid compound derived from Ganoderma lucidum. These compounds have been reported to possess various biological activities, such as inhibiting histamine release from rat mast cells and exhibiting anti-hepatoma cell activity in vitro .

HY-N3622

Corchoionoside C (6S,9S)-Roseoside	Capparis spinosa L. Plants Capparidaceae Saccharides Monosaccharides Source Classification	Others
Corchoionoside C ((6S,9S)-Roseoside), an ionone glucoside, can be isolated from Capparis spinosa. Corchoionoside C inhibits the antigen-antibody reaction induced histamine release from rat peritoneal exudate cells .

HY-B0426AR

Olopatadine hydrochloride (Standard) ALO4943A (Standard); KW4679 (Standard)	Structural Classification Alkaloids Ketones, Aldehydes, Acids Other Alkaloids Endogenous metabolite Source Classification	Reference Standards Histamine Receptor CXCR
Olopatadine (hydrochloride) (Standard) is the analytical standard of Olopatadine (hydrochloride). This product is intended for research and analytical applications. Olopatadine hydrochloride (ALO4943A; KW4679) is an orally active histamine H1 receptor antagonist and mast cell stabilizer. Olopatadine hydrochloride exerts antiallergic effects by blocking histamine H1 receptor-mediated activities. Olopatadine hydrochloride inhibits exocytosis, chemokine release, F-actin polymerization, CXCL10-induced calcium influx, and T cell chemotactic activity. Olopatadine hydrochloride also reduces the expression levels of CXCR3 on the surface of CD4 ⁺ and CD8 ⁺ T cells. Olopatadine hydrochloride inhibits scratching behavior, improves dermatitis scores, and suppresses intraepidermal neurite outgrowth. Olopatadine hydrochloride simultaneously decreases the levels of inflammatory markers, growth factors, histamine, and specific IgE, while increasing the expression of ErbB3A/HER3A. Olopatadine hydrochloride can be used in research related to seasonal pollinosis, chronic rhinitis, urticaria, allergic conjunctivitis, alopecia areata, and atopic dermatitis .

HY-N2081R

Skimmianine (Standard)	Alkaloids Structural Classification Rutaceae Quinoline Alkaloids Plants Skimmia reevesiana Fort. Source Classification	Reference Standards Cholinesterase (ChE) PI3K Akt NF-κB
Skimmianine (Standard) is the analytical standard of Skimmianine. This product is intended for research and analytical applications. Skimmianine is an orally active furoquiniline alkaloid present mainly in the Rutaceae family. Skimmianine has analgesic, antispastic, sedative, and anti-inflammatory properties. Skimmianine inhibits acetylcholinesterase (AChE) (IC₅₀ = 8.6 μg/mL). Skimmianine exhibits cytotoxicity against a variety of cancer cell lines and genotoxicity. Skimmianine has antioxidant and anti-inflammatory effects on ischemia-reperfusion (IR) injury. Skimmianine exerts anti-inflammatory effects through activation of the phosphatidylinositol-3-kinase (PI3K)-protein kinase B (AKT) pathway. Skimmianine is neuroprotective by targeting the NF-κB activation pathway to prevent neuroinflammation. Skimmianine inhibits the release of histamine, intracellular Ca ²⁺ signaling and protein kinase C signaling .

HY-N12295

Ciwujianoside D1	Triterpenes Structural Classification Tetracyclic Triterpenoids Terpenoids Acanthopanax senticosus (Rupr. et Maxim.) Harms Plants Araliaceae Source Classification	Others
Ciwujianoside D1 is a natural product that can inhibit histamine release induced by anti-immunoglobulin E from rat peritoneal mast cells .

HY-N15704

Cassiaside C2	Structural Classification Monophenols Ketones, Aldehydes, Acids Phenols Caesalpiniaceae Cassia obtusifolia (L.) H. S. Irwin & Barneby Plants Source Classification	Histamine Receptor
Cassiaside C2 is a naphthopyrone with a strong antiallergic activity. Cassiaside C2 inhibits the histamine release from rat peritoneal exudate mast cells induced by antigen-antibody reaction .

HY-137787R

Cyanosafracin B (Standard)	Microorganisms Marine natural products Source Classification	Drug Intermediate Reference Standards
Nylidrin (hydrochloride) (Standard) is the analytical standard of Nylidrin (hydrochloride). This product is intended for research and analytical applications. Nylidrin hydrochloride is an inhibitor of IgE-mediated histamine release in passive sensitized rat peritoneal mast cells, and it has anti-allergic effects.

$Cyanosafracin B (Standard)$

HY-N0631R

Cornuside (Standard)	Structural Classification Iridoids Cornaceae Cornus officinalis Sieb. et Zucc. Terpenoids Phenols Polyphenols Plants Source Classification	Reference Standards Prostaglandin Receptor ERK p38 MAPK Acyltransferase TNF Receptor COX Cholinesterase (ChE) Interleukin Related JNK NO Synthase NF-κB
Cornuside (Standard) is the analytical standard of Cornuside (HY-N0631). This product is intended for research and analytical applications. Cornuside is an iridoid glycoside with anti-allergic, anti-inflammatory, and neuroprotective activities. Cornuside exerts anti-allergic activity by downregulating the p38 MAPK, JNK, and NF-κB signaling pathways, and inhibits IgE-mediated histamine release from mast cells. Cornuside improves cognitive impairment in mice by inhibiting BACE1 activity (IC₅₀ = 55.84 μg/mL) and enhancing ChAT activity. Cornuside inhibits LPS (HY-D1056)-induced inflammatory mediators, including iNOS, COX-2, PGE2, TNF-α, IL-6, and IL-1β, by suppressing NF-κB activation.

HY-N11725

Phlorofucofuroeckol A	Structural Classification Microorganisms Phenols Polyphenols Source Classification	Fc Receptor (FcR)
Phlorofucofuroeckol A is a FcεRI inhibitor with low cytotoxicity toward basophilic leukemia cells. Phlorofucofuroeckol A suppresses binding activity between IgE and FcεRI receptor. Phlorofucofuroeckol A inhibits histamine release from basophilic leukemia cells stimulated by IgE/anti-IgE or calcium ionophore A23187 (HY-N6687). Phlorofucofuroeckol A inhibits β-hexosaminidase release from basophilic leukemia cells stimulated by IgE/DNP-BSA. Phlorofucofuroeckol A can be used for the research of allergy disease .

HY-N17738

Acetyljujuboside B	Structural Classification Terpenoids Plants Actaea simplex (DC.) Wormsk. ex Fisch. & C. A. Mey. Rhamnaceae Pentacyclic Triterpenoids Source Classification	Calcium Channel
Acetyljujuboside B is a saponin. Acetyljujuboside B can be isolated from seeds of Zizyphus jujuba Mill. var. spinosa. Acetyljujuboside B inhibits Ca ²⁺ influx. Acetyljujuboside B shows only sustained vasorelaxant effects, with no transient effect on NE-induced vasoconstrictions. Acetyljujuboside B inhibits histamine release from rat peritoneal exudate cells induced by the antigen-antibody reaction .

HY-N19243

6-O-Senesioyl plenolin	Structural Classification Terpenoids Sesquiterpenes	Histamine Receptor
6-O-Senesioyl plenolin is a sesquiterpene lactone found in Centipeda minima with antiallergic activity. 6-O-Senesioyl plenolin inhibits histamine release from mast cells (IC₅₀ = 18 μM) and suppresses pigment exudation in passive cutaneous anaphylaxis tests. 6-O-Senesioyl plenolin can be used in research related to allergy .

HY-171338

Gallocatechin-3-O-(3″-O-methyl)-gallate GCG3″Me	Structural Classification Flavonols Flavonoids Camellia sinensis (L.) O. Ktze. Plants Source Classification Theaceae	Histamine Receptor
Gallocatechin-3-O-(3''-O-methyl)-gallate (GCG3''Me) is a catechin polyphenol. Gallocatechin-3-O-(3''-O-methyl)-gallate inhibits *histamine* release. Gallocatechin-3-O-(3''-O-methyl)-gallate can be used in allergy-related studies .

HY-N16715

Monardic acid A	Structural Classification Lignans Phenylpropanoids Plants Pulmonaria officinalis L. Boraginaceae Source Classification	Cholinesterase (ChE)
Monardic acid A is a selective inhibitor of AChE, with an IC₅₀ of 53.1 μM against AChE from electric eel. Monardic acid A shows weak inhibitory activity against human erythrocyte AChE (IC₅₀ >100 μM) and has no significant inhibitory effect on BChE. Monardic acid A reduces acetylcholine breakdown by inhibiting AChE activity, and also exhibits inhibitory activity against histamine release and hyaluronidase, thus exerting anti-inflammatory and neurotransmitter regulatory effects. Monardic acid A can be isolated from lungwort (Pulmonaria officinalis) and thyme (Thymus gobicus), and is mainly used in the development of anti-inflammatory drugs and drugs related to neurodegenerative diseases .

Cat. No.	Product Name	Chemical Structure

HY-17043S1

Loratadine-d5
Loratadine-d₅ is the deuterium labeled Loratadine. Loratadine (SCH-29851) is a selective inverse peripheral histamine H1-receptor agonist with an IC50 of >32 μM. Loratadine has anti-dengue-virus (DENV) activity. Loratadine can inhibit immunologic release of inflammatory mediators.

HY-W062109S

Olopatadine-d6

Olopatadine-d₆ is the deuterium labeled Olopatadine. Olopatadine hydrochloride (ALO4943A; KW4679) is an orally active histamine H1 receptor antagonist and mast cell stabilizer. Olopatadine hydrochloride exerts antiallergic effects by blocking histamine H1 receptor-mediated activities. Olopatadine hydrochloride inhibits exocytosis, chemokine release, F-actin polymerization, CXCL10-induced calcium influx, and T cell chemotactic activity. Olopatadine hydrochloride also reduces the expression levels of CXCR3 on the surface of CD4 ⁺ and CD8 ⁺ T cells. Olopatadine hydrochloride inhibits scratching behavior, improves dermatitis scores, and suppresses intraepidermal neurite outgrowth. Olopatadine hydrochloride simultaneously decreases the levels of inflammatory markers, growth factors, histamine, and specific IgE, while increasing the expression of ErbB3A/HER3A. Olopatadine hydrochloride can be used in research related to seasonal pollinosis, chronic rhinitis, urticaria, allergic conjunctivitis, alopecia areata, and atopic dermatitis .

HY-B0640S

Epinastine-13C,d3 hydrobromide
Epinastine- ¹³C,d₃ (hydrobromide) is the ¹³C- and deuterium labeled Epinastine. Epinastine (WAL801) is an antihistamine and mast cell stabilizer. Epinastine is a potent, selective and orally-active histamine H1 receptor antagonist. Epinastine also inhibits IL-8 release and has an antiallergic action .

HY-B0426AS

Olopatadine-d3 hydrochloride

Olopatadine-d₃ hydrochloride (ALO4943A-d₃) is the deuterium labeled Olopatadine hydrochloride. Olopatadine hydrochloride (ALO4943A; KW4679) is an orally active histamine H1 receptor antagonist and mast cell stabilizer. Olopatadine hydrochloride exerts antiallergic effects by blocking histamine H1 receptor-mediated activities. Olopatadine hydrochloride inhibits exocytosis, chemokine release, F-actin polymerization, CXCL10-induced calcium influx, and T cell chemotactic activity. Olopatadine hydrochloride also reduces the expression levels of CXCR3 on the surface of CD4 ⁺ and CD8 ⁺ T cells. Olopatadine hydrochloride inhibits scratching behavior, improves dermatitis scores, and suppresses intraepidermal neurite outgrowth. Olopatadine hydrochloride simultaneously decreases the levels of inflammatory markers, growth factors, histamine, and specific IgE, while increasing the expression of ErbB3A/HER3A. Olopatadine hydrochloride can be used in research related to seasonal pollinosis, chronic rhinitis, urticaria, allergic conjunctivitis, alopecia areata, and atopic dermatitis .

HY-17043S

Loratadine-d4
Loratadine-d₄ is the deuterium labeled Loratadine. Loratadine (SCH-29851) is a selective inverse peripheral histamine H1-receptor agonist with an IC50 of >32 μM. Loratadine has anti-dengue-virus (DENV) activity. Loratadine can inhibit immunologic release of inflammatory mediators.

HY-23188

Loratadine-d5-1
Loratadine-d₅-1 is a deuterated labeled Loratadine (HY-17043). Loratadine (SCH-29851) is a selective inverse peripheral histamine H1-receptor agonist with an IC₅₀ of >32 μM. Loratadine has anti-dengue-virus (DENV) activity. Loratadine can inhibit immunologic release of inflammatory mediators.

HY-17043S2

Loratadine-d4-1
Loratadine-d₄-1 (Loratidine-d₄-1) is deuterium labeled Loratadine. Loratadine (SCH-29851) is a selective inverse peripheral histamine H1-receptor agonist with an IC50 of >32 μM. Loratadine has anti-dengue-virus (DENV) activity. Loratadine can inhibit immunologic release of inflammatory mediators .

HY-17043S3

Loratadine-13C6
Loratadine- ¹³C₆ (SCH 29851- ¹³C₆) is ¹³C labeled Loratadine. Loratadine (SCH-29851) is a selective inverse peripheral histamine H1-receptor agonist with an IC50 of >32 μM. Loratadine has anti-dengue-virus (DENV) activity. Loratadine can inhibit immunologic release of inflammatory mediators.

HY-B1619S

Cromolyn-d5

Cromolyn-d₅ (Cromoglycate-d₅) is the deuterium labeled Cromolyn (HY-B1619). Cromolyn (Cromoglycate) is an orally active GSK-3β inhibitor with an IC₅₀ of 2.0 μM. Cromolyn is also a mast cell stabilizer that can inhibit the release of mediators from mast cells, regulate reflex bronchoconstriction, and reduce non-specific bronchial hyperreactivity, and Cromolyn can be used in the research of bronchial asthma. In addition, Cromolyn has multiple activities such as anti-inflammatory, anti-allergic, anti-histamine, anti-cancer, and neuroprotective effects .

HY-B0426AS2

Olopatadine-d6 hydrochloride

Olopatadine-d₆ (ALO4943A-d₆; KW4679-d₆) hydrochloride is deuterium-labeled Olopatadine (hydrochloride) (HY-B0426A). Olopatadine hydrochloride (ALO4943A; KW4679) is an orally active histamine H1 receptor antagonist and mast cell stabilizer. Olopatadine hydrochloride exerts antiallergic effects by blocking histamine H1 receptor-mediated activities. Olopatadine hydrochloride inhibits exocytosis, chemokine release, F-actin polymerization, CXCL10-induced calcium influx, and T cell chemotactic activity. Olopatadine hydrochloride also reduces the expression levels of CXCR3 on the surface of CD4 ⁺ and CD8 ⁺ T cells. Olopatadine hydrochloride inhibits scratching behavior, improves dermatitis scores, and suppresses intraepidermal neurite outgrowth. Olopatadine hydrochloride simultaneously decreases the levels of inflammatory markers, growth factors, histamine, and specific IgE, while increasing the expression of ErbB3A/HER3A. Olopatadine hydrochloride can be used in research related to seasonal pollinosis, chronic rhinitis, urticaria, allergic conjunctivitis, alopecia areata, and atopic dermatitis .

HY-W778179

Benoxaprofen-13C,d3

Benoxaprofen- ¹³C, d₃ is the ¹³C-labeled Benoxaprofen (HY-13568). Benoxaprofen (LRCL 3794) is a nonsteroidal anti-inflammatory agent that blocks the biosynthesis of inflammatory mediators such as leukotrienes and prostaglandins by inhibiting 5-LOX, PGH2 synthase and cytochrome P-450. Benoxaprofen exhibits significant toxicity: it not only alters cellular redox status, uncouples oxidative phosphorylation and disrupts calcium ion homeostasis, but also causes liver injury through the formation of covalent adducts between its active metabolites and hepatic proteins. Benoxaprofen shows strong phototoxicity under ultraviolet irradiation, and induces erythrocyte lysis, mast cell degranulation and histamine release. Benoxaprofen is widely used in studies of urticaria and related phototoxic mechanisms .

HY-166562S

Levomepromazine-d6 hydrochloride

Levomepromazine-d₆ hydrochloride (Methotrimeprazine-d₆ hydrochloride) is the deuterium labeled Levomepromazine hydrochloride. Levomepromazine (Methotrimeprazine) hydrochloride is an orally active antipsychotic compound and Ca ²⁺ release inducer. Levomepromazine inhibits SERCA pump and induces an increase in cytoplasmic Ca ²⁺ levels. Levomepromazine hydrochloride has antagonistic effects on a variety of neurotransmitter receptors, including dopamine, cholinergic, serotonin, and histamine receptors. Levomepromazine hydrochloride can induce adaptive ER stress and autophagy. In addition, Levomepromazine hydrochloride has antiviral, anti-inflammatory, neuroprotective and analgesic, sedative and anti-injurious activities. Levomepromazine hydrochloride can be used in the study psychiatric disorders and relieving nausea and vomiting .

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