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Onchidal

Clinical data
ATC code	none
Identifiers
IUPAC name (1E,3E)-5-(2,2-Dimethyl-6-methylenecyclohexyl)-3-formylpenta-1,3-dien-1-yl acetate
CAS Number	67656-42-2
PubChem CID	6441116
ChemSpider	4945331
CompTox Dashboard (EPA)	DTXSID90897204
Chemical and physical data
Formula	C17H24O3
Molar mass	276.376 g·mol
3D model (JSmol)	Interactive image
SMILES CC(=O)O\C=C\C(=C/CC1C(=C)CCCC1(C)C)\C=O
InChI InChI=1S/C17H24O3/c1-13-6-5-10-17(3,4)16(13)8-7-15(12-18)9-11-20-14(2)19/h7,9,11-12,16H,1,5-6,8,10H2,2-4H3/b11-9+,15-7+ Key:BEKQPDFPPJFVJP-AHSQCEKMSA-N
(verify)

Onchidal is a naturally occurring neurotoxin produced as a defensive secretion by the mollusc Onchidella binneyi and several other related species in Onchidella, a genus of small, air-breathing sea slugs. It acts as an irreversible acetylcholinesterase inhibitor, the same mechanism of action as that of the deadly nerve agents, however onchidal is not an organophosphorus or carbamate compound and bears little resemblance to other compounds of this nature.

References

1. Abramson SN, Radic Z, Manker D, Faulkner DJ, Taylor P (September 1989). "Onchidal: a naturally occurring irreversible inhibitor of acetylcholinesterase with a novel mechanism of action". Molecular Pharmacology. 36 (3): 349–54. PMID 2779521.

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