(3α)-Allopregnanolone CAS 516-54-1
| CAS No. | 516-54-1 |
| Molecular Formula | C21H34O2 |
| Molecular Weight | 318.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of (3α)-Allopregnanolone 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)-Allopregnanolone (CAS 516-54-1), molecular formula C21H34O2 and molecular weight 318.49 g/mol, is a CATO reference standard with documented purity and traceability.
(3α)-Allopregnanolone (C21H34O2) contains a steroid core, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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)-Allopregnanolone 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 | >95% |
| 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 Allopregnanolone Standards
- (3α)-Allopregnanolone-d5 (CAS CATO-CCAD302750)
- Allopregnanolone Impurity 2 (CAS 481-10-7)
- Allopregnanolone Impurity 1 (CAS 2220-64-6)
- Allopregnanolone Acetate (CAS 906-83-2)
- Allopregnanolone-D5 B-D-Glucuronide (CAS 31300-86-4)
- (3α)-Allopregnanolone Sulfate Pyridinium Salt (CAS 1177357-94-6)
- Allopregnanolone Sulfate-D5 (CAS 215996-42-2)
Recommended Standards
- Alfaxalone Impurity 1 (CAS CATO-C4X-32311)
- Methyl Arachidonoate (5c,8c,11c,14c) (CAS 2566-89-4)
- Zuranolone impurity 1 (CAS CATO-C4X-30381)
- Methyl Dihydroabietate (CAS 30968-45-7)
- Basic Blue 1 (CAS 3521-06-0)
- 2-Hydroxy-5-methyl-N-(4-methylthiazol-2-yl)benzamide (CAS 883150-90-1)
- (1,3-Thiazol-5-yl)methyl benzoate (CAS 478247-78-8)
- 6-Amino-5-(pyridin-3-ylmethyl)pyrimidin-2(1H)-one (CAS 889939-36-0)
- 2-Nitro-4-(pyrazin-2-ylthio)aniline (CAS 55564-29-9)
- 2,6-Dicyclopropylpyrimidine-4-carboxylic acid (CAS 1550853-40-1)
- 3-Methyl-1H-pyrazol-5-amine (CAS 268724-49-8)
- 6-(aminomethyl)-2,3-dihydropyridazin-3-one (CAS 84554-11-0)
- Exemestane EP Impurity H (CAS 122370-91-6)
- FLAG Epitope Peptide (CAS 98849-88-8)
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