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antiallergic effect

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By Targets:	5-HT Receptor (4) Caspase (1) Drug Derivative (1) Glycosidase (1) Histamine Receptor (3) NF-κB (1) p38 MAPK (1) PGE synthase (2) Platelet-activating Factor Receptor (PAFR) (1) Reference Standards (2) Syk (4)
By Research Areas:	Cardiovascular Disease (1) Infection (1) Inflammation/Immunology (13)

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Cat. No.	Product Name	Target	Research Areas	Chemical Structure

HY-108259

HQL-79	PGE synthase	Inflammation/Immunology
HQL-79, a potent, selective and orally active human hematopoietic prostaglandin D synthase (H-PGDS) inhibitor, highly selectively inhibits the synthesis of PGD₂, and acts as an anti-allergic agent, with a K_d of 0.8 μM and an IC₅₀ of 6 μM. Shows no obvious effect on COX-1, COX-2, m-PGES, or L-PGDS .

HY-112390A

Syk Inhibitor II 2 Publications Verification	Syk 5-HT Receptor	Inflammation/Immunology
Syk Inhibitor II is a potent, high selective and ATP-competitive Syk inhibitor with an IC₅₀ of 41 nM. Syk Inhibitor II inhibits 5-HT release from RBL-cells with an IC₅₀ of 460 nM. Syk Inhibitor II shows less potent against other kinases and has anti-allergic effect .

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-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-112390

Syk Inhibitor II dihydrochloride	5-HT Receptor Syk	Inflammation/Immunology
Syk Inhibitor II dihydrochloride is a potent, high selective and ATP-competitive Syk inhibitor with an IC₅₀ of 41 nM. Syk Inhibitor II dihydrochloride inhibits 5-HT release from RBL-cells with an IC₅₀ of 460 nM. Syk Inhibitor II dihydrochloride shows less potent against other kinases and has anti-allergic effect .

HY-N10821A

Blestriarene A (-)-Blestriarene A	Others	Inflammation/Immunology
Blestriarene A ((-)-Blestriarene A) is a active product that can beextracts from the tubers of Gymnadenia conopsea. Blestriarene A shows an antiallergic effect .

HY-N10279

Gymconopin C	Others	Infection
Gymconopin C shows an antiallergic effect on ear passive cutaneous anaphylaxis reactions in mice.

HY-112390C

Syk Inhibitor II hydrochloride	5-HT Receptor Syk	Inflammation/Immunology
Syk Inhibitor II hydrochloride is a potent, high selective and ATP-competitive Syk inhibitor with an IC₅₀ of 41 nM. Syk Inhibitor II hydrochloride inhibits 5-HT release from RBL-cells with an IC₅₀ of 460 nM. Syk Inhibitor II hydrochloride shows less potent against other kinases and has anti-allergic effect .

HY-112390B

Syk Inhibitor II dihydrochloride dihydrate	Syk 5-HT Receptor	Inflammation/Immunology
Syk Inhibitor II dihydrochloride dihydrate is a potent, high selective and ATP-competitive Syk inhibitor with an IC₅₀ of 41 nM. Syk Inhibitor II dihydrochloride dihydrate inhibits 5-HT release from RBL-cells with an IC₅₀ of 460 nM. Syk Inhibitor II dihydrochloride dihydrate shows less potent against other kinases and has anti-allergic effect .

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-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-116481

Selenotifen BN 52256	Platelet-activating Factor Receptor (PAFR)	Cardiovascular Disease Inflammation/Immunology
Selenotifen (BN 52256) is an antiallergic agent. Selenotifen is a highly potent antagonist to PAF receptors. Selenotifen exhibits a statistically significant antiarrhythmic effect .

HY-124185

LC 6	Others	Others
LC 6 is an anti-allergic compound that has the activity of inhibiting passive cutaneous allergic reactions in rats. Its half effective dose (ED50) is 35 mg/kg body weight. Oral administration is effective and long-lasting, and the effect is obviously dose-dependent. Its long-term binding to mast cells makes it a valuable tool for studying allergic reaction receptors.

HY-N18182

Mudanpioside E	Glycosidase	Inflammation/Immunology
Mudanpioside E is an orally effective paeoniflorin-type monoterpene glycoside antiallergic agent, with an IC₅₀ of 40.34 μM against IgE-mediated β-hexosaminidase release. Mudanpioside E reverses the inhibitory effect of the modified Xiaoqinglong Decoction extract (paeonia root component removed) on passive cutaneous anaphylaxis in mice. Mudanpioside E itself shows no activity against passive cutaneous anaphylaxis. Mudanpioside E can be used in research related to allergic diseases .

HY-108259R

HQL-79 (Standard)	Reference Standards PGE synthase	Inflammation/Immunology
HQL-79 (Standard) is the analytical standard of HQL-79 (HY-108259). This product is intended for research and analytical applications. HQL-79, a potent, selective and orally active human hematopoietic prostaglandin D synthase (H-PGDS) inhibitor, highly selectively inhibits the synthesis of PGD2, and acts as an anti-allergic agent, with a K_d of 0.8 μM and an IC₅₀ of 6 μM. Shows no obvious effect on COX-1, COX-2, m-PGES, or L-PGDS .

Cat. No.	Product Name	Target	Research Area

HY-P5219

Acetyl heptapeptide-4	Peptides	Others
Acetyl heptapeptide-4 is a bioactive peptide with *antiallergic* effect and has been reported used as a cosmetic ingredient .

(-)-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 .

Blestriarene A (-)-Blestriarene A	Orchidaceae Gymnadenia conopsea (L.) R. Br. Phenols Polyphenols Plants Source Classification	Others
Blestriarene A ((-)-Blestriarene A) is a active product that can beextracts from the tubers of Gymnadenia conopsea. Blestriarene A shows an antiallergic effect .

Gymconopin C	Infection other families Classification of Application Fields Phenols Polyphenols Plants Disease Research Fields Source Classification	Others
Gymconopin C shows an antiallergic effect on ear passive cutaneous anaphylaxis reactions in mice.

Mudanpioside E	Structural Classification Monophenols Paeonia lactiflora Pall. Phenols Plants Paeoniaceae Source Classification	Glycosidase
Mudanpioside E is an orally effective paeoniflorin-type monoterpene glycoside antiallergic agent, with an IC₅₀ of 40.34 μM against IgE-mediated β-hexosaminidase release. Mudanpioside E reverses the inhibitory effect of the modified Xiaoqinglong Decoction extract (paeonia root component removed) on passive cutaneous anaphylaxis in mice. Mudanpioside E itself shows no activity against passive cutaneous anaphylaxis. Mudanpioside E can be used in research related to allergic diseases .

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BODIPY 493/503 purchased from MedChemExpress. Usage Cited in: Nat Commun. 2025 Feb 1;16(1):1241. [Abstract]

MedchemExpress Validation 01

Western blot analysis of extracts from THP-1(lane 2(20μg), Jurkat (lane 3(20μg) and NIH3T3(lane 4(20μg) using FOXO1A (HY-P80132) Rabbit mAb. Proteins were transferred to a PVDF membrane and blocked with 5% non-fat milk in TBST for 2 hour at room temperature. The primary antibody (1/1000) and Loading control antibody (Beta Actin, HY-P80438, 1/10000) was used in 5% non-fat milk in TBST at 4°C overnight. Goat Anti-Mouse/Rabbit IgG-HRP Secondary Antibody (1/10000) was used for 1 hour at room temperature. Western blot analysis of extracts from THP-1(lane 2(20μg), Jurkat (lane 3(20μg) and NIH3T3(lane 4(20μg) using FOXO1A (HY-P80132) Rabbit mAb. Proteins were transferred to a PVDF membrane and blocked with 5% non-fat milk in TBST for 2 hour at room temperature. The primary antibody (1/1000) and Loading control antibody (Beta Actin, HY-P80438, 1/10000) was used in 5% non-fat milk in TBST at 4°C overnight. Goat Anti-Mouse/Rabbit IgG-HRP Secondary Antibody (1/10000) was used for 1 hour at room temperature. Western blot analysis of extracts from THP-1(lane 2(20μg), Jurkat (lane 3(20μg) and NIH3T3(lane 4(20μg) using FOXO1A (HY-P80132) Rabbit mAb. Proteins were transferred to a PVDF membrane and blocked with 5% non-fat milk in TBST for 2 hour at room temperature. The primary antibody (1/1000) and Loading control antibody (Beta Actin, HY-P80438, 1/10000) was used in 5% non-fat milk in TBST at 4°C overnight. Goat Anti-Mouse/Rabbit IgG-HRP Secondary Antibody (1/10000) was used for 1 hour at room temperature.

BODIPY 493/503 purchased from MedChemExpress. Usage Cited in: Nat Commun. 2025 Feb 1;16(1):1241. [Abstract]

MedchemExpress Validation 01

MedchemExpress Validation 03

Western blot analysis of extracts from THP-1(lane 2(20μg), Jurkat (lane 3(20μg) and NIH3T3(lane 4(20μg) using FOXO1A (HY-P80132) Rabbit mAb. Proteins were transferred

MedchemExpress Validation 04

MedchemExpress Validation

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antiallergic effect

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