Hopane

Hopane
Names
	IUPAC name Hopane
	Systematic IUPAC name (3R,3aS,5aR,5bR,7aS,11aS,11bR,13aR,13bS)-5a,5b,8,8,11a,13b-Hexamethyl-3-(propan-2-yl)icosahydro-1H-cyclopenta[a]chrysene
	Other names A'-Neogammacerane
Identifiers
CAS Number	471-62-5 ;
3D model (JSmol)	Interactive image;
ChemSpider	9711;
PubChem CID	10115;
UNII	W2H93796GT ;
CompTox Dashboard (EPA)	DTXSID00904337 ;
	InChI InChI=1S/C30H52/c1-20(2)21-12-17-27(5)22(21)13-18-29(7)24(27)10-11-25-28(6)16-9-15-26(3,4)23(28)14-19-30(25,29)8/h20-25H,9-19H2,1-8H3/t21-,22+,23+,24-,25-,27+,28+,29-,30-/m1/s1 Key: ZRLNBWWGLOPJIC-PYQRSULMSA-N; InChI=1/C30H52/c1-20(2)21-12-17-27(5)22(21)13-18-29(7)24(27)10-11-25-28(6)16-9-15-26(3,4)23(28)14-19-30(25,29)8/h20-25H,9-19H2,1-8H3/t21-,22+,23+,24-,25-,27+,28+,29-,30-/m1/s1 Key: ZRLNBWWGLOPJIC-PYQRSULMBH;
	SMILES [C@@H]54[C@]([C@@H]3[C@@]([C@]1([C@@H]([C@]2(C)[C@@H](CC1)C(C)(C)CCC2)CC3)C)(C)CC4)(C)CC[C@@H]5C(C)C;
Properties
Chemical formula	C30H52
Molar mass	412.746 g·mol−1
Density	0.952 g/ml
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Hopane is a natural chemical compound classified as a triterpene. It forms the central core of a variety of other chemical compounds which are collectively known as hopanoids. The first compound of the hopane family to be isolated and characterised was hydroxyhopanone, found in dammar resin. The name derives from Hopea, a tree genus from which dammar is obtained.