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M2028

Sigma-Aldrich

Capsaicin

from Capsicum sp., ≥95% (HPLC), powder, TRPV1 agonist

Synonym(s):

8-Methyl-N-vanillyl-trans-6-nonenamide

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About This Item

Linear Formula:
(CH3)2CHCH=CH(CH2)4CONHCH2C6H3-4-(OH)-3-(OCH3)
CAS Number:
404-86-4
Molecular Weight:
305.41
Beilstein/REAXYS Number:
2816484
EC Number:
206-969-8
MDL number:
MFCD00017259
UNSPSC Code:
12352200
PubChem Substance ID:
24896598
NACRES:
NA.77

product name

Capsaicin, ≥95%, from Capsicum sp.

biological source

Capsicum sp.

assay

≥95%

mp

62-65 °C (lit.)

solubility

H2O: insoluble
ethanol: soluble

storage temp.

2-8°C

SMILES string

COc1cc(CNC(=O)CCCC\C=C\C(C)C)ccc1O

InChI

1S/C18H27NO3/c1-14(2)8-6-4-5-7-9-18(21)19-13-15-10-11-16(20)17(12-15)22-3/h6,8,10-12,14,20H,4-5,7,9,13H2,1-3H3,(H,19,21)/b8-6+

InChI key

YKPUWZUDDOIDPM-SOFGYWHQSA-N

Gene Information

human ... CYP1A2(1544) , TRPV1(7442)
rat ... Trpv1(83810) , Trpv4(66026)

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General description

Capsaicin is an alkaloid that is present inthe fruit of the Capsicum genus and is the main reason for the spicy flavor inhot peppers including jalapenos, habaneros, and red chili peppers. It isobserved that capsaicin acts as a chemoprotective agent and can induceapoptosis, inhibit proliferation, and induce cell-cycle arrest in variouscancer cells. Capsaicin activates its receptor transient receptorpotential vanilloid subfamily member 1 (TRPV1) and activates sensory afferentneurons that causes neurogenicinflammation, hypothermia, and pain.

Application

Capsaicin has also been used asa TRPV1 agonist to study the effect of barbamide on capsaicin response indorsal root ganglion sensory neurons.
Capsaicin has been used:
  • to study its effects on chromatin remodeling and gene expression related to synaptic plasticity
  • to study TRPV1 channel signaling in H2C1 cells (which are human embryonic kidney 293 cells expressing TRPV1 channels)

Biochem/physiol Actions

Prototype vanilloid receptor agonist. Neurotoxin; activates sensory neurons that give rise to unmyelinated C-fibers, many of which contain substance P. Topical application desensitizes the sensory nerve endings giving a paradoxical antinociceptive effect; systemic administration can be neurotoxic to capsaicin-sensitive cells, especially in newborn animals. Active component of chili peppers.

signalword

Danger

Hazard Classifications

Acute Tox. 2 Oral - Eye Dam. 1 - Resp. Sens. 1 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3

target_organs

Respiratory system

Storage Class

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

wgk_germany

WGK 3

flash_point_f

235.4 °F - closed cup

flash_point_c

113 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges

Certificates of Analysis (COA)

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Stimulation of TRPV1 channels activates the AP-1 transcription factor.
Backes TM, et al.
Biochemical Pharmacology, 150(3), 160-169 (2018)
Capsaicin upregulates HDAC2 via TRPV1 and impairs neuronal maturation in mice.
Wang S, et al.
Experimental & Molecular Medicine, 50(3), e455-e455 (2018)
Amol M Patwardhan et al.
Proceedings of the National Academy of Sciences of the United States of America, 106(44), 18820-18824 (2009-10-22)
Transient receptor potential vanilloid 1 (TRPV1) plays a major role in hyperalgesia and allodynia and is expressed both in the peripheral and central nervous systems (CNS). However, few studies have evaluated mechanisms by which CNS TRPV1 mediates hyperalgesia and allodynia
Shao-Gang Lu et al.
Pain, 151(3), 633-643 (2010-10-05)
The impact of persistent inflammation on voltage-activated Ca(2+) channels in cutaneous DRG neurons from adult rats was assessed with whole cell patch clamp techniques, sqRT-PCR and Western blot analysis. Inflammation was induced with a subcutaneous injection of complete Freund's adjuvant
Omer Barkai et al.
Pain, 160(6), 1281-1296 (2019-04-02)
Endogenous inflammatory mediators contribute to the pathogenesis of pain by acting on nociceptors, specialized sensory neurons that detect noxious stimuli. Here, we describe a new factor mediating inflammatory pain. We show that platelet-derived growth factor (PDGF)-BB applied in vitro causes
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