Ursolic acid

Ursolic acid

Names
IUPAC name 3β-Hydroxyurs-12-en-28-oic acid
Systematic IUPAC name (1S,2R,4aS,6aS,6bR,8aR,10S,12aR,12bR,14bS)-10-Hydroxy-1,2,6a,6b,9,9,12a-heptamethyl-1,3,4,5,6,6a,6b,7,8,8a,9,10,11,12,12a,12b,13,14b-octadecahydropicene-4a(2H)-carboxylic acid
Other names Prunol, Malol, β-Ursolic acid, NSC4060, CCRIS 7123, TOS-BB-0966[1]
Identifiers
CAS Number	77-52-1 Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:9908 Y
ChEMBL	ChEMBL169 Y
ChemSpider	58472 Y
ECHA InfoCard	100.000.941
PubChem CID	64945
UNII	P3M2575F3F Y
CompTox Dashboard (EPA)	DTXSID70883221
InChI InChI=1S/C30H48O3/c1-18-10-15-30(25(32)33)17-16-28(6)20(24(30)19(18)2)8-9-22-27(5)13-12-23(31)26(3,4)21(27)11-14-29(22,28)7/h8,18-19,21-24,31H,9-17H2,1-7H3,(H,32,33)/t18-,19+,21+,22-,23+,24+,27+,28-,29-,30+/m1/s1 Y Key: WCGUUGGRBIKTOS-GPOJBZKASA-N Y InChI=1/C30H48O3/c1-18-10-15-30(25(32)33)17-16-28(6)20(24(30)19(18)2)8-9-22-27(5)13-12-23(31)26(3,4)21(27)11-14-29(22,28)7/h8,18-19,21-24,31H,9-17H2,1-7H3,(H,32,33)/t18-,19+,21+,22-,23+,24+,27+,28-,29-,30+/m1/s1 Key: WCGUUGGRBIKTOS-GPOJBZKABB
SMILES O=C(O)[C@@]54[C@H](/C3=C/C[C@H]1[C@](CC[C@@H]2[C@]1(C)CC[C@H](O)C2(C)C)(C)[C@]3(C)CC4)[C@@H](C)[C@H](C)CC5
Properties
Chemical formula	C30H48O3
Molar mass	456.711 g·mol−1
Melting point	285 to 288 °C (545 to 550 °F; 558 to 561 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y verify (what is YN ?) Infobox references

Ursolic acid (sometimes referred to as urson, prunol, malol, or 3β-hydroxyurs-12-en-28-oic acid), is a pentacyclic triterpenoid identified in the epicuticular waxes of apples as early as 1920 and widely found in the peels of fruits, as well as in herbs and spices like rosemary and thyme.