Pregnenolone (CAS 145-13-1) Sigma-Aldrich

Pregnenolone molecular structure — Molecular structure

The Sigma-Aldrich catalog lists 4 grades and pack sizes of Pregnenolone (CAS 145-13-1). Pick the code you need and request a quote for price and lead time from Klar Chem.

CAS	145-13-1
Molecular formula	C21H32O2
Molecular weight	316.48 g/mol
IUPAC name	1-[(3S,8S,9S,10R,13S,14S,17S)-3-hydroxy-10,13-dimethyl-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-yl]ethanone
Synonyms	3beta-Hydroxypregn-5-en-20-one · Arthenolone · Regnosone · Skinostelon · Enelone · Natolone

Safety & Hazards (GHS) Warning

Irritant

Health hazard

H302 Harmful if swallowed
H312 Harmful in contact with skin
H332 Harmful if inhaled
H351 Suspected of causing cancer
H361 Suspected of damaging fertility or the unborn child

⚠️ For information only (source: EU CLP harmonised classification and ECHA notifications, via PubChem); not a substitute for the official Safety Data Sheet (SDS).

Catalog codes and grades

Brand	Product / grade	Code
Sigma	5-PREGNEN-3B-OL-20-ONE	P9129-100G P9129-1G P9129-25G P9129-5G	Request Quote

For information only; specifications and availability are confirmed at quotation. Prices are not listed.