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HSR

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By Targets:	Apoptosis (1) Bacterial (5) Cholinesterase (ChE) (5) Dopamine Receptor (5) Drug Derivative (1) Histamine Receptor (1) HSP (2) Isotope-Labeled Compounds (2) mAChR (1) Mitochondrial Metabolism (1) NF-κB (1) Reference Standards (1) Serine Racemase (SR) (1)
By Research Areas:	Cancer (4) Infection (1) Inflammation/Immunology (3) Neurological Disease (5)

Inhibitors & Agonists

Natural
Products

Isotope-Labeled Compounds

Cat. No.	Product Name	Target	Research Areas	Chemical Structure

HY-18669

ML346 5+ Cited Publications	HSP	Cancer
ML346 is an activator of Hsp70 expression and HSF-1 activity, with an EC₅₀ of 4.6 μM for Hsp70. ML346 restores protein folding in conformational disease models, without significant cytotoxicity or lack of specificity. ML346 induces specific increases in genes and protein effectors of the heat shock response (HSR), including chaperones such as Hsp70, Hsp40, and Hsp27 .

HY-B0732

Itopride hydrochloride HSR803	Cholinesterase (ChE) Dopamine Receptor Bacterial	Neurological Disease
Itopride (HSR803) hydrochloride is a potent dopamine-2 antagonist and an acetylcholine esterase (AChE) inhibitor. Itopride hydrochloride enhances gastric motility through both antidopaminergic and anti-acetylcholinesterasic actions, can be used as a gastrointestinal prokinetic agent. Itopride can be used for researching gastro-esophageal reflux disease (GERD) .

HY-145102

NCT-58	HSP Apoptosis	Cancer
NCT-58 is a potent inhibitor of C-terminal HSP90. NCT-58 does not induce the heat shock response (HSR) due to its targeting of the C-terminal region and elicits anti-tumor activity via the simultaneous downregulation of HER family members as well as inhibition of Akt phosphorylation. NCT-58 kills Trastuzumab-resistant breast cancer stem-like cells. NCT-58 induces apoptosis in HER2-positive breast cancer cells .

HY-U00133

HSR6071	Drug Derivative	Inflammation/Immunology
HSR6071, a pyrazinecarboxamide derivative, is an orally active and potent antiallergic agent. HSR6071 potently inhibits the experimental asthma in rat models .

HY-B0732A

Itopride HSR803 free base	Cholinesterase (ChE) Dopamine Receptor Bacterial	Others
Itopride (HSR803 free base) is a potent and orally active dopamine-2 antagonist and an acetylcholine esterase (AChE) inhibitor. Itopride enhances gastric motility through both antidopaminergic and anti-acetylcholinesterasic actions, can be used as a gastrointestinal prokinetic agent. Itopride can be used for researching gastro-esophageal reflux disease (GERD) .

HY-114724

HSR-609	Histamine Receptor	Inflammation/Immunology
HSR-609 is an orally active amphoteric antiallergic agent. HSR-609 has a high affinity for histamine H1-receptor in the guinea pig cerebral cortex. HSR-609 inhibits allergic airway hyperresponsiveness to Acetylcholine. HSR-609 shows poor ability to penetrate into the CNS in mice and guinea pigs .

HY-162652

HSR-IN-1	Serine Racemase (SR)	Neurological Disease
HSR-IN-1 (Compound 28) is an effective *hSR* (human serine racemase) inhibitor. In the presence of the cofactor Pyridoxal 5'-phosphate monohydrate (HY-W011727A), HSR-IN-1 has a K_d value of 5.4 μM and an IC₅₀ of 18.3 μM for *hSR, while the IC₅₀* of HSR-IN-1 alone is 4.7 μM. HSR-IN-1 can be used for research on central nervous system diseases .

HY-144745

HSR1304	NF-κB	Cancer
HSR1304 (Compound 5d) is a potent inhibitor of NFκB. The multifunctional transcription factor, nuclear factor-κB (NF-κB), is broadly involved in multiple human diseases, such as cancer and chronic inflammation. HSR1304 has the potential for the research of cancer diseases .

HY-B0732AS

Itopride-d6 HSR803-d6 free base	Isotope-Labeled Compounds Dopamine Receptor Bacterial Cholinesterase (ChE)	Others
Itopride-d₆ (HSR803-d₆ (free base)) is deuterium labeled Itopride. Itopride (HSR803 free base) is a potent and orally active dopamine-2 antagonist and an acetylcholine esterase (AChE) inhibitor. Itopride enhances gastric motility through both antidopaminergic and anti-acetylcholinesterasic actions, can be used as a gastrointestinal prokinetic agent. Itopride can be used for researching gastro-esophageal reflux disease (GERD) .

HY-B0732S

Itopride-d6 hydrochloride HSR803-d6 hydrochloride	Isotope-Labeled Compounds Cholinesterase (ChE) Dopamine Receptor	Neurological Disease
Itopride-d₆ (hydrochloride) is deuterium labeled Itopride (hydrochloride). Itopride hydrochloride (HSR803), a gastroprokinetic Benzamide (HY-Z0283) derivative, is an inhibitor of acetylcholinesterase (AChE) and dopamine D2 receptor .

HY-B0732R

Itopride hydrochloride (Standard) HSR803 (Standard)	Reference Standards Cholinesterase (ChE) Dopamine Receptor Bacterial	Neurological Disease
Itopride (hydrochloride) (Standard) is the analytical standard of Itopride (hydrochloride). This product is intended for research and analytical applications. Itopride (HSR803) hydrochloride is a potent dopamine-2 antagonist and an acetylcholine esterase (AChE) inhibitor. Itopride hydrochloride enhances gastric motility through both antidopaminergic and anti-acetylcholinesterasic actions, can be used as a gastrointestinal prokinetic agent. Itopride can be used for researching gastro-esophageal reflux disease (GERD) .

HY-N12887

Mycothiazole	Mitochondrial Metabolism	Others Cancer
Mycothiazole is an inhibitor for mitochondrial electron transport chain (ETC) complex I. Mycothiazole exhibits cytotoxicity in cancer cells Huh7 (IC₅₀ is 55.8 μM), U87 and MCF7. Mycothiazole induces apoptosis in Huh7. Mycothiazole utilizes the unfolded protein response (UPR) and heat shock response (HSR) pathway involved transcription factors ATFS-1 and HSF1, to extend the lifespan of C. elegans .

HY-W683763

Olamufloxacin HSR-903 free base	Bacterial	Infection
Olamufloxacin (HSR-903) is an orally active fluoroquinolone antibacterial agent. Olamufloxacin shows broad-spectrum bactericidal activity against Gram-positive and Gram-negative bacteria. Olamufloxacin inhibits growth of extracellular Legionella spp. bacteria and intracellular growth of Legionella pneumophila. Olamufloxacin inhibits cytotoxicity caused by intracellularly multiplying Legionella pneumophila. Olamufloxacin increases survival rate and reduces lung bacterial burden in L. pneumophila-infected guinea pigs.Olamufloxacin can be used for the research of legionnaires’ disease .

HY-135754

Tiquizium bromide HSR-902	mAChR	Neurological Disease Inflammation/Immunology
Tiquizium bromide is an orally active, atropine-type, nonselective muscarinic antagonist and novel spasmolytic agent. Tiquizium bromide inhibits the developments of gastric lesions and duodenal lesions. Tiquizium bromide induces the mydoriasis and inhibits the Pilocarpine (HY-B0726A)-induced salivation .

Cat. No.	Product Name	Category	Target	Chemical Structure

HY-N12887

Mycothiazole	Natural Products Marine natural products Sponge Source Classification	Mitochondrial Metabolism
Mycothiazole is an inhibitor for mitochondrial electron transport chain (ETC) complex I. Mycothiazole exhibits cytotoxicity in cancer cells Huh7 (IC₅₀ is 55.8 μM), U87 and MCF7. Mycothiazole induces apoptosis in Huh7. Mycothiazole utilizes the unfolded protein response (UPR) and heat shock response (HSR) pathway involved transcription factors ATFS-1 and HSF1, to extend the lifespan of C. elegans .

Cat. No.	Product Name	Chemical Structure

HY-B0732AS

Itopride-d6
Itopride-d₆ (HSR803-d₆ (free base)) is deuterium labeled Itopride. Itopride (HSR803 free base) is a potent and orally active dopamine-2 antagonist and an acetylcholine esterase (AChE) inhibitor. Itopride enhances gastric motility through both antidopaminergic and anti-acetylcholinesterasic actions, can be used as a gastrointestinal prokinetic agent. Itopride can be used for researching gastro-esophageal reflux disease (GERD) .

Itopride-d6

Itopride-d₆ (HSR803-d₆ (free base)) is deuterium labeled Itopride. Itopride (HSR803 free base) is a potent and orally active dopamine-2 antagonist and an acetylcholine esterase (AChE) inhibitor. Itopride enhances gastric motility through both antidopaminergic and anti-acetylcholinesterasic actions, can be used as a gastrointestinal prokinetic agent. Itopride can be used for researching gastro-esophageal reflux disease (GERD) .

HY-B0732S

Itopride-d6 hydrochloride
Itopride-d₆ (hydrochloride) is deuterium labeled Itopride (hydrochloride). Itopride hydrochloride (HSR803), a gastroprokinetic Benzamide (HY-Z0283) derivative, is an inhibitor of acetylcholinesterase (AChE) and dopamine D2 receptor .

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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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HSR

Inhibitors & Agonists

NaturalProducts

Isotope-Labeled Compounds

Natural
Products