MSI_000057570

Unreliable

排名分数: 0.83
参考来源: Homo sapiens (UBERON:0007779: transudate)

M/z: 591.3498
Mass Window: 591.3498 ~ 591.3498 (none)

参考注释

Ponasteroside A_[M+H-2H2O]+ (BioDeep_00000019862)
(1R,2R,4S,5R,7R,11S,14S,15R)-14-[(2R,3R)-2,3-dihydroxy-6-methylheptan-2-yl]-4,11-dihydroxy-2,15-dimethyl-5-{[(2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}tetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadec-9-en-8-one

Formula: C33H54O11 (626.3665933999999)
SMILES:

[H][C@@]1(CC[C@@]2(O)C3=CC(=O)[C@]4([H])C[C@@H](O[C@]5([H])O[C@H](CO)[C@@H](O)[C@H](O)[C@H]5O)[C@@H](O)C[C@]4(C)[C@@]3([H])CC[C@]12C)[C@@](C)(O)[C@H](O)CCC(C)C

Ponasteroside A, also known as warabisterone, is a member of the class of compounds known as steroidal glycosides. Steroidal glycosides are sterol lipids containing a carbohydrate moiety glycosidically linked to the steroid skeleton. Ponasteroside A is practically insoluble (in water) and a very weakly acidic compound (based on its pKa). Ponasteroside A is found in green vegetables. Ponasteroside A has been isolated from Pteridium aquilinum (bracken fern).