Lanosterol

Lanosterol
Names
	IUPAC name Lanosta-8,24-dien-3β-ol
	Systematic IUPAC name (1R,3aR,5aR,7S,9aS,11aR)-3a,6,6,9a,11a-Pentamethyl-1-[(2R)-6-methylhept-5-en-2-yl]-2,3,3a,4,5,5a,6,7,8,9,9a,10,11,11a-tetradecahydro-1H-cyclopenta[a]phenanthren-7-ol
Identifiers
CAS Number	79-63-0 ;
3D model (JSmol)	Interactive image;
Beilstein Reference	2226449
ChEBI	CHEBI:16521 ;
ChEMBL	ChEMBL225111 ;
ChemSpider	216175 ;
DrugBank	DB03696;
ECHA InfoCard	100.001.105
EC Number	201-214-9;
IUPHAR/BPS	2746;
KEGG	C01724;
MeSH	Lanosterol
PubChem CID	246983;
UNII	1J05Z83K3M ;
CompTox Dashboard (EPA)	DTXSID1040744 ;
	InChI InChI=1S/C30H50O/c1-20(2)10-9-11-21(3)22-14-18-30(8)24-12-13-25-27(4,5)26(31)16-17-28(25,6)23(24)15-19-29(22,30)7/h10,21-22,25-26,31H,9,11-19H2,1-8H3/t21-,22-,25+,26+,28-,29-,30+/m1/s1 Key: CAHGCLMLTWQZNJ-BQNIITSRSA-N ; InChI=1/C30H50O/c1-20(2)10-9-11-21(3)22-14-18-30(8)24-12-13-25-27(4,5)26(31)16-17-28(25,6)23(24)15-19-29(22,30)7/h10,21-22,25-26,31H,9,11-19H2,1-8H3/t21-,22-,25+,26+,28-,29-,30+/m1/s1 Key: CAHGCLMLTWQZNJ-BQNIITSRBP;
	SMILES C[C@H](CCC=C(C)C)[C@H]1CC[C@]2(C)C1CCC3=C2CC[C@H]4C(C)(C)[C@@H](O)CC[C@]34C;
Properties
Chemical formula	C30H50O
Molar mass	426.71 g/mol
Melting point	138 to 140 °C (280 to 284 °F; 411 to 413 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

Lanosterol is a tetracyclic triterpenoid and is the compound from which all animal and fungal steroids are derived. By contrast, plant steroids are produced via cycloartenol. In the eyes of vertebrates, lanosterol is a natural constituent, having a role in maintaining health of the lens. Lanosterol is the precursor to cholesterol.