Palmitoleic acid

Palmitoleic acid
Names
	Preferred IUPAC name (9Z)-Hexadec-9-enoic acid
	Other names Palmitoleic acid; cis-Palmitoleic acid; 9-cis-Hexadecenoic acid; C16:1 (Lipid numbers)
Identifiers
CAS Number	373-49-9 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:28716;
ChemSpider	393216 ;
ECHA InfoCard	100.006.151
IUPHAR/BPS	5547;
PubChem CID	445638;
UNII	209B6YPZ4I ;
CompTox Dashboard (EPA)	DTXSID0041197 ;
	InChI InChI=1S/C16H30O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16(17)18/h7-8H,2-6,9-15H2,1H3,(H,17,18)/b8-7- Key: SECPZKHBENQXJG-FPLPWBNLSA-N ; InChI=1/C16H30O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16(17)18/h7-8H,2-6,9-15H2,1H3,(H,17,18)/b8-7- Key: SECPZKHBENQXJG-FPLPWBNLBE;
	SMILES O=C(O)CCCCCCC\C=C/CCCCCC;
Properties
Chemical formula	C16H30O2
Molar mass	254.414 g·mol−1
Density	0.894 g/cm3
Melting point	−0.1 °C (31.8 °F; 273.0 K)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Palmitoleic acid, or (9Z)-hexadec-9-enoic acid, is an omega-7 monounsaturated fatty acid (16:1n-7) with the formula CH₃(CH₂)₅CH=CH(CH₂)₇COOH. It is a rare component of fats. It is present in all tissues but, in general, is found in higher concentrations in the liver.

It is biosynthesized from palmitic acid by the action of the enzyme Stearoyl-CoA desaturase-1. Palmitoleic acid exists in two isomers, cis and trans.