2D Structure

3D Structure

Capsaicin


Properties
PID PID00003
Mol. Weight 305.418 g/mol
LogP 3.75
Water solubility 0.0000275 mol/L at 20 °C
Hydrogen Bond Donor 2
Hydrogen Bond Acceptor 3
Rotatable Bonds 9
XLogP3-AA 3.6

Capsaicin

Identifiers
Formula C18H27NO3
PubChem CID 1548943
FEMA 3404
Flavor Profile highly pungent, Highly volatile with a pungent odor,
Smiles CC(C)C=CCCCCC(=O)NCC1=CC(=C(C=C1)O)OC
InChl Key YKPUWZUDDOIDPM-SOFGYWHQSA-N
InChl 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+
CAS Registry Number 404-86-4
IUPAC Systematic Name (E)-N-[(4-hydroxy-3-methoxyphenyl)methyl]-8-methylnon-6-enamide

Organ Location Map/System Distribution of Pungent Flavor Compounds’ Targets


Note: Known Targets (Gene) from 6952 literatures, DrugBank (http://www.drugbank.ca/), STITCH (http://stitch.embl.de/), ChEMBL (https://www.ebi.ac.uk/chembl/), Therapeutic Target Database (http://bidd.nus.edu.sg/group/ttd/), and Comparative Toxicogenomics Database (CTD, http://ctdbase.org/)


Related Pungent TCM

English Name Pinyin Name (Chinese Name) Latin Name Properties in TCM merdians View Graph
Lesser GalangalGao Liang Jiang (高良姜)Alpiniae Officinarum RhizomaHot,PungentLarge Intestine, StomachView Graph
Bush RedpepperLa Jiao (辣椒)Capsici FructusHot, PungentLung, Spleen, Stomach, Heart, KidneyView Graph
Chinese Thorowax Equivalent plant: Bupleurum scorzChai Hu(柴胡)Bupleuri RadixMinor cold, Pungent, BitterLiver, Gallbladder, LungView Graph
Ginkgo bilobaBai Guo (白果)Ginkgo NutMild,Sweet,Bitter,PunkeryLungView Graph
Codonopsis pilosulaDan Shen (丹参)Pilose Asiabell Equivalent plant: Codonopsis piloMild,SweetLung,SpleenView Graph
Panax quinquefoliumXi Yang Shen (西洋参)American GinsengCold,Sweet,Slightly BitterLung,Heart,KidneyView Graph

Pharmacological action

Capsaicin, the pungent component of chili peppers, is a natural ligand of the transient receptor potential vanilloid 1 channel and has long been used as topically applicable cream with concentrations of 0.025 to 0.075%Natural capsaicin is a strong irritant for the skin, eyes, and upper respiratory tract. Capsaicin has gained favor as the provocative agent of choice to measure cough reflex sensitivity, as it induces cough in a safe, reproducible, and dose-dependent manner.Capsaicin and its analogs exhibit a variety of pharmacological properties and are widely applied in medicine.Capsaicin is a TRPV1 receptor agonist. TRPV1 is a trans-membrane receptor-ion channel complex activated by temperatures higher than 43 degrees Celsius, pH lower than 6, and endogenous lipids. When activated by a combination of these factors, the channel can transiently open and initiate depolarization due to the influx of calcium and sodium ions. Because TRPV1 is commonly expressed in A-delta and mostly C fibers, depolarization results in action potentials which send impulses to the brain and spinal cord. These impulses result in capsaicin effects of warming, tingling, itching, stinging, or burning. Capsaicin also causes more persistent activation of these receptors compared to the environmental agonists, resulting in a loss of response to many sensory stimuli, described as "defunctionalization". Capsaicin is associated with many enzymatic, cytoskeletal, and osmotic changes, as well as disruption of mitochondrial respiration, impairing nociceptor function for extended periods of time.



Note: Click anywhere in the blank, you can drag the whole dynamic diagram. Click on a node, you can drag his location to see it more clearly. The blue circle represents pharmacology, toxicology, or daily use. Orange hexagon represents the pungent compounds.

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