Cholestane

Cholestane

IUPAC numbering [1]
IUPAC name (8R,9S,10S,13R,14S,17R)-10,13-Dimethyl-17-[(2R)-6-methylheptan-2-yl]-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene
Identifiers
CAS number	481-21-0
PubChem	6857534
ChemSpider	5256870^Y
ChEBI	CHEBI:35516^Y
Jmol-3D images	Image 1 Image 2
SMILES C[C@H](CCCC(C)C)[C@H]1CC[C@@H]2[C@@]1(CC[C@H]3[C@H]2CCC4[C@@]3(CCCC4)C)C C41CCCC[C@@]1([C@@H]3[C@H]([C@@H]2CC[C@@H]([C@@]2(C)CC3)[C@H](C)CCCC(C)C)CC4)C
InChI InChI=1S/C27H48/c1-19(2)9-8-10-20(3)23-14-15-24-22-13-12-21-11-6-7-17-26(21,4)25(22)16-18-27(23,24)5/h19-25H,6-18H2,1-5H3/t20-,21?,22+,23-,24+,25+,26+,27-/m1/s1^Y Key: XIIAYQZJNBULGD-LDHZKLTISA-N^Y InChI=1/C27H48/c1-19(2)9-8-10-20(3)23-14-15-24-22-13-12-21-11-6-7-17-26(21,4)25(22)16-18-27(23,24)5/h19-25H,6-18H2,1-5H3/t20-,21?,22+,23-,24+,25+,26+,27-/m1/s1 Key: XIIAYQZJNBULGD-LDHZKLTIBN
Properties
Molecular formula	C₂₇H₄₈
Molar mass	372.67 g mol⁻¹
Y (verify) (what is: Y/N?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Cholestane is a saturated 27-carbon steroid precursor which serves as the basis for many organic molecules.

Derivatives of cholestane

Derivatives are classified in two families:

Sterols (with an alcohol group)
Cholestenes (with a double bond)

Some steroids, such as cholesterol, are both a sterol and a cholestene.

External links

MeSH Cholestanes

Steroid classification

C₁₇	Gonane

C₁₈	Estrane

C₁₉	Androstane

C₂₁	Pregnane

C₂₃	Cardanolide

C₂₄	Cholane · Bile acid

C₂₇	Cholestane

Functional group	17-Ketosteroid · Hydroxysteroid · Halogenated steroid

Elements removed	Norsteroid · Secosteroid