5α-Pregnane-3-one-20α-ol CAS 516-59-6
| CAS No. | 516-59-6 |
| Molecular Formula | C21H34O2 |
| Molecular Weight | 318.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5α-Pregnane-3-one-20α-ol (CAS 516-59-6) is a high-purity analytical reference standard with the molecular formula C21H34O2 and a molecular weight of 318.49 g/mol.
Owing to a steroid core, a hydroxyl group, an ether linkage, 5α-Pregnane-3-one-20α-ol is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 318.49 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 5α-Pregnane-3-one-20α-ol under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C21H34O2 |
| Molecular Weight | 318.49 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Pregnane Standards
- 5a-Pregnane-3a,20a-diol (CAS 566-58-5)
- 5α-Pregnane-3β,20(S)-diol (CAS 566-56-3)
- 5β-Pregnane-3β,20(S)-diol (CAS 80-90-0)
- 5Beta-Pregnane-3Alpha,20Alpha-Diol (CAS 80-92-2)
- 5α-Pregnane-3α,17α-diol-20-one (CAS 6890-65-9)
- (3α,5β)-Pregnane-3,20,21-triol (CAS 2041-77-2)
- Pregnane-d4 (CAS 205529-77-7)
- Pregnane (CAS 24909-91-9)
Recommended Standards
- 4-(Tetradecyloxy)benzaldehyde (CAS 59117-17-8)
- 5β-PREGNAN-20α-OL-3-ONE (CAS 54353-11-6)
- 20β-Dihydro Pregnenolone (CAS 901-57-5)
- Benzyl tetradecanoate (CAS 31161-71-4)
- 2-[4-(aminomethyl)benzenesulfonyl]ethan-1-ol (CAS 739326-23-9)
- N-(4-methoxybenzyl)-1-(1-methyl-1H-pyrrol-2-yl)methanamine (CAS 724757-81-7)
- N-(3-Bromophenyl)acetamide (CAS 621-38-5)
- 2-Chloro-N-(2,6-dichloro-4-ethoxyphenyl)acetamide (CAS 114961-03-4)
- 3-(2-Methoxy-2-oxoethoxy)propanoic acid (CAS 1195625-24-1)
- 3-Chloro-N-[2-(4-isopropylphenoxy)propyl]-4-methoxyaniline (CAS 1040685-83-3)
- 2-(4-Fluorophenyl)-6-(4-methylpiperazin-1-yl)quinazolin-4(3H)-one (CAS 860788-43-8)
- 1-(3-bromo-1-methyl-1H-pyrazol-5-yl)-2-(morpholin-4-yl)ethan-1-ol (CAS 2145694-89-7)
- 2-[[[1,4-Dihydro-4-oxo-5-(2-thienyl)thieno[2,3-d]pyrimidin-2-yl]methyl]thio]acetic acid (CAS 743453-36-3)
- ([D?]Val?·1?)-C-Peptide (human) (CAS 1802078-41-6)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com