(3α,5α,17Z)-Pregn-17(20)-en-3-ol CAS 68199-34-8
| CAS No. | 68199-34-8 |
| Molecular Formula | C21H34O |
| Molecular Weight | 302.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of (3α,5α,17Z)-Pregn-17(20)-en-3-ol is closely related to a steroid core, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
(3α,5α,17Z)-Pregn-17(20)-en-3-ol (CAS 68199-34-8), molecular formula C21H34O and molecular weight 302.49 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a steroid core, a hydroxyl group, an ether linkage, (3α,5α,17Z)-Pregn-17(20)-en-3-ol is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 302.49 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 (3α,5α,17Z)-Pregn-17(20)-en-3-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 | C21H34O |
| Molecular Weight | 302.49 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 | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
Related Z Standards
- Pregn-5-ene-3,20-dione (CAS 1236-09-5)
- 17.alpha.-Pregn-5-en-20-yne-3.beta.,17.beta.-diol 3604-60-2 Androst-5-ene-3.beta., 17-ethynyl- NSC-17098 NSC17098 Pregn-5-en-20-yne-3, (3.beta.,17.alpha.)- (CAS 3604-60-2)
- (20R)-Pregn-4-ene-3,17,20-triol (CAS 384342-63-6)
- (3β,20R)-Pregn-5-ene-3,17,20-triol (CAS 2204-13-9)
- (3β,20S)-Pregn-5-ene-3,17,20-triol (CAS 903-67-3)
- 128255-08-3 Pregn-5-en-20-amine,3-methoxy-N,N-dimethyl-, (3b,20S)- (9CI) (CAS 128255-08-3)
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