Names | |
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IUPAC name
19-Nor-5ξ,9β,10α-lanostane
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Systematic IUPAC name
(1R,3aS,3bR,5aΞ,9aR,9bS,11aR)-3a,6,6,9b,11a-Pentamethyl-1-[(2R)-6-methylheptan-2-yl]hexadecahydro-1H-cyclopenta[a]phenanthrene | |
Identifiers | |
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3D model (JSmol)
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ChEBI | |
ChemSpider | |
PubChem CID
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UNII | |
CompTox Dashboard (EPA)
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Properties | |
C30H54 | |
Molar mass | 414.762 g·mol−1 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Cucurbitane is a class of tetracyclic chemical compounds with formula C
30H
54 (CAS number 65441-59-0). It is a polycyclic hydrocarbon, specifically triterpene. It is also an isomer of lanostane (specifically 19(10→9β)-abeolanostane), from which it differs by the formal shift of a methyl group (carbon number 19) from the 10 to the 9β position in the standard steroid numbering scheme.[1][2]
The name is applied to two stereoisomers, distinguished by the prefixes 5α- and 5β-, which differ by the handedness of the bonds at a particular carbon atom (number 5 in the standard steroid numbering scheme).[1]