20671-66-3 , 4-Methylumbelliferyl caprylate

Cas:20671-66-3 ,
4-Methylumbelliferyl caprylate;
Octanoic acid 4-methylumbelliferyl ester; 4-MU-caprylate; MUCAP
C18H22O4 / 302.36
MFCD00038659

4-Methylumbelliferyl caprylate

Octanoic acid 4-methylumbelliferyl ester; 4-MU-caprylate; MUCAP

Used for identification of Salmonella spp. by detection of caprylate esterase.

4-Methylumbelliferyl caprylate (MUCAP) is a fluorogenic substrate for C8 esterase. MUCAP is cleaved by C8 esterase to release the fluorescent moiety 4-methylumbelliferyl (4-MU). 4-MU fluorescence is pH-dependent with excitation maxima of 320 and 360 nm at low (1.97-6.72) and high (7.12-10.3) pH, respectively, and an emission maximum ranging from 445 to 455 nm, increasing as pH decreases.

CAS Number	20671-66-3
Product Name	4-Methylumbelliferyl caprylate
IUPAC Name	(4-methyl-2-oxochromen-7-yl) octanoate
Molecular Formula	C18H22O4
Molecular Weight	302.4 g/mol
InChI	InChI=1S/C18H22O4/c1-3-4-5-6-7-8-17(19)21-14-9-10-15-13(2)11-18(20)22-16(15)12-14/h9-12H,3-8H2,1-2H3
InChI Key	WZEWYQWWSCVHCP-UHFFFAOYSA-N
SMILES	CCCCCCCC(=O)OC1=CC2=C(C=C1)C(=CC(=O)O2)C
Synonyms	4-methylumbelliferyl caprylate, 4-methylumbelliferyl octanoate, MUCAP
Canonical SMILES	CCCCCCCC(=O)OC1=CC2=C(C=C1)C(=CC(=O)O2)C