20β-Dihydro Pregnenolone CAS 901-57-5
| CAS No. | 901-57-5 |
| Molecular Formula | C21H34O2 |
| Molecular Weight | 318.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
20β-Dihydro Pregnenolone (CAS 901-57-5), molecular formula C21H34O2 and molecular weight 318.49 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 20β-Dihydro Pregnenolone (C21H34O2) contains a steroid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 318.49 g/mol, it falls into the moderately-high-molecular-weight range. 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 20β-Dihydro Pregnenolone 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 |
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Recommended Standards
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- 1-{2,8-dimethylimidazo[1,2-a]pyridin-6-yl}piperidine-3-carboxylic acid (CAS 1540222-98-7)
- 2-(6-(Hydroxymethyl)-2,3-dimethylphenoxy)-1-morpholinoethan-1-one (CAS 1427012-71-2)
- (1-Cyclopropylvinyl)benzene (CAS 825-76-3)
- (S)-N-(3,5-dichlorobenzylidene)-2-methylpropane-2-sulfinamide (CAS 1980007-52-0)
- Rel-(1R,2R)-1,2-dimethylcyclopropane-1,2-dicarboxylic acid (CAS 699-50-3)
- N-Ethyl-3-(4-methyl-1-piperidinyl)-1-propanamine (CAS 1040690-68-3)
- Methyl indoline-2-carboxylate hydrochloride (CAS 198016-53-4)
- Methyl2,3,4-tris-O-(phenylmethyl)-b-D-glucopyranosiduronicacid (CAS 4356-82-5)
- 4-Methanesulfonyl-3-methylaniline (CAS 1671-50-7)
- a-Bag Cell Peptide (1-8) (CAS 87549-53-9)
Why CATO?
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