Catalog No. Size PriceQuantity
M11314-2 Solid 2 mg $90
M11314-10 Solid 10 mg $270


Capsazepine is TRPM8 a antagonist. Capsazepine blocks the painful sensation of heat caused by capsaicin (the active ingredient of chilli pepper) which activates the TRPV1 ion channel. It is therefore considered to be a capsaicin antagonist. The TRPV1 channel functions as a pain and temperature sensor in mammalians. Capsazepine blocks only the activation of TRPV1 channels by chemicals but not by other painful stimuli, like heat. Depending on the pharmacological assay the half maximal inhibitory concentration IC50 is in the nanomolar to low micromolar range. In addition to its effects on TRPV1 channels it was also shown to inhibit the cold activated TRPM8 channel, voltage-activated calcium channels and nicotinic acetylcholine receptors. It mainly serves as a tool to study the TRPV1 ion channel.

Product information

CAS Number: 138977-28-3

Molecular Weight: 376.90

Formula: C19H21ClN2O2S

Chemical Name: N-[2-(4-chlorophenyl)ethyl]-7,8-dihydroxy-2,3,4,5-tetrahydro-1H-2-benzazepine-2-carbothioamide

Smiles: OC1=CC2CN(CCCC=2C=C1O)C(=S)NCCC1C=CC(Cl)=CC=1


InChi: InChI=1S/C19H21ClN2O2S/c20-16-5-3-13(4-6-16)7-8-21-19(25)22-9-1-2-14-10-17(23)18(24)11-15(14)12-22/h3-6,10-11,23-24H,1-2,7-9,12H2,(H,21,25)

Technical Data

Appearance: Solid Power

Purity: ≥98% (or refer to the Certificate of Analysis)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis

Storage Condition: Dry, dark and -20 oC for 1 year or refer to the Certificate of Analysis.

Shelf Life: ≥360 days if stored properly.

Stock Solution Storage: 0 - 4 oC for 1 month or refer to the Certificate of Analysis.

Drug Formulation: To be determined

HS Tariff Code: 382200

Products are for research use only. Not for human use.

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