Dibucaine

Cinchocaine

Clinical data
AHFS/Drugs.com	International Drug Names
Routes of administration	topical, intravenous (for animal euthanasia)
ATC code	C05AD04 (WHO) D04AB02 (WHO) N01BB06 (WHO) S01HA06 (WHO) S02DA04 (WHO)
Legal status
Legal status	US: OTC
Identifiers
IUPAC name 2-butoxy-N-[2-(diethylamino)ethyl]quinoline-4-carboxamide
CAS Number	85-79-0 Y
PubChem CID	3025
IUPHAR/BPS	7159
DrugBank	DB00527 Y
ChemSpider	2917 Y
UNII	L6JW2TJG99
KEGG	D00733 Y
ChEBI	CHEBI:247956 Y
ChEMBL	CHEMBL1086 Y
ECHA InfoCard	100.001.484
Chemical and physical data
Formula	C20H29N3O2
Molar mass	343.463 g/mol
3D model (Jmol)	Interactive image
SMILES O=C(c1c2ccccc2nc(OCCCC)c1)NCCN(CC)CC
InChI InChI=1S/C20H29N3O2/c1-4-7-14-25-19-15-17(16-10-8-9-11-18(16)22-19)20(24)21-12-13-23(5-2)6-3/h8-11,15H,4-7,12-14H2,1-3H3,(H,21,24) Y Key:PUFQVTATUTYEAL-UHFFFAOYSA-N Y

Cinchocaine (INN/BAN) or dibucaine (USAN) is an amide local anesthetic. Among the most potent and toxic of the long-acting local anesthetics, current use of cinchocaine is generally restricted to spinal and topical anesthesia. It is sold under the brand names Cincain, Nupercainal, Nupercaine and Sovcaine.

Cinchocaine is the active ingredient in some topical hemorrhoid creams such as Proctosedyl. It is also a component of the veterinary drug Somulose, used for euthanasia of horses and cattle.

Cinchocaine is relatively insoluble in alkaline aqueous solutions.