5-Pregnen-3β-ol-20-one
5-Pregnen-3β-ol-20-one (CAS: 145-13-1), with the molecular formula C21H32O2 and a molecular weight of 316.48 g/mol, is a vital steroid hormone precursor. It plays a crucial role in the biosynthesis of various steroid hormones, including progesterone, androgens, and estrogens. This compound is integral to cellular processes and metabolic pathways, particularly within steroid metabolism and lipid research. Tech Serve Solutions supplies this chemical for research and development purposes.
- IUPAC
- 3β-Hydroxy-5-pregnen-20-one,Pregnenolone

Steroid Hormone Precursor
5-Pregnen-3β-ol-20-one serves as a key intermediate in the biosynthesis of essential steroid hormones, underpinning its significance in endocrine research and biochemical studies.
Biochemical Research
This compound is extensively used in cell biology and metabolic pathway studies due to its role as a fundamental building block in steroid metabolism and lipid research.
Lipid Metabolism Studies
As a steroid, it is a valuable tool for investigating lipid pathways and their associated biochemical processes within various biological systems.
| Molecular weight | 316.48 |
|---|---|
| Empirical formula | C21H32O2 |
| Assay | ≥98% |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Gene Information | human ... SERPINA6(866)rat ... Ar(24208) |
|---|
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 5-Pregnen-3β-ol-20-one used for?
+
5-Pregnen-3β-ol-20-one is primarily used as a precursor in the biosynthesis of steroid hormones and in biochemical research, including cell biology and lipid metabolism studies.
What is the CAS number and molecular formula for 5-Pregnen-3β-ol-20-one?
+
The CAS number for 5-Pregnen-3β-ol-20-one is 145-13-1, and its molecular formula is C21H32O2.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies 5-Pregnen-3β-ol-20-one with an assay of ≥98%. We do not represent this product as USP, BP, or EP grade.
How should 5-Pregnen-3β-ol-20-one be handled safely?
+
Handle with care using appropriate personal protective equipment, including eyeshields, gloves, and a type N95 (US) or type P1 (EN143) respirator filter, as indicated by the WGK Germany rating of 3.
How is 5-Pregnen-3β-ol-20-one packed, shipped, and exported?
+
5-Pregnen-3β-ol-20-one is carefully packed and exported by Tech Serve Solutions in compliance with all relevant regulations for chemical substances.
How can I request a sample or quote for 5-Pregnen-3β-ol-20-one?
+
To request a sample or a quote for 5-Pregnen-3β-ol-20-one, please contact our sales department through the website or via direct inquiry.
▶ Related products

(−)-Curcumol
C15H24O2
Cell Biology
(±) Clopidogrel hydrogensulfate
Cell Biology

(±)-L-Alliin
C6H11NO3S
Cell Biology
(±)-2-Amino-4-phosphonobutyric acid
C4H10NO5P
Cell Biology
(±)-2-Methylarachidonoyl-2′-fluoroethylamide
C23H38NOF
Cell Biology
(±)-3,4-Methylenedioxy-N-ethylamphetamine hydrochloride
Cell Biology

(±)-3,4-Methylenedioxyamphetamine hydrochloride
Cell Biology

(±)-3,4-Methylenedioxymethamphetamine hydrochloride
Cell Biology
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis