Pregnenolone 17α-Acetoxy CAS 2381-45-5
| CAS No. | 2381-45-5 |
| Molecular Formula | C23H34O4 |
| Molecular Weight | 374.51 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Pregnenolone 17α-Acetoxy.
CATO supplies Pregnenolone 17α-Acetoxy (CAS 2381-45-5), a certified reference material (molecular formula C23H34O4, MW 374.51 g/mol) for analytical method development and quality control.
The molecular framework of Pregnenolone 17α-Acetoxy (C23H34O4) is characterized by a flavonoid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C23H34O4 |
| Molecular Weight | 374.51 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Pregnenolone Standards
- Pregnenolone Impurity 12 (CAS 66880-01-1)
- Pregnenolone Impurity 10 (CAS 1173-11-1)
- Pregnenolone Isobutyrate (CAS CATO-C4X-21916)
- Pregnenolone-3-isobutyrate (CAS CATO-C4X-21917)
- Pregnenolone Impurity 14 (CAS 911452-26-1)
- Pregnenolone Acetate (CAS 1778-02-5)
- Pregnenolone Impurity 9 (CAS 66905-18-8)
- Pregnenolone sulfate (CAS 1247-64-9)
Recommended Standards
- Heptanoic acid, 1,1'-[1,2-ethanediylbis(oxy-2,1-ethanediyl)] ester (CAS 7434-40-4)
- Busulfan Impurity 10 (CAS CATO-C4X-145510)
- Cannabigerolic Acid Monomethyl Ether (CAS 29624-08-6)
- Progesterone Impurity 36 (CAS 88128-61-4)
- 2-(3,5-Dibromophenyl)-1,3-dioxolane (CAS 773094-77-2)
- 1-Bromo-4-(2-butoxyethoxy)benzene (CAS 39255-24-8)
- 3-(2-Propynyloxy)azetidine trifluoroacetate (CAS 1864051-83-1)
- 2,5-Dichloro-3-(difluoromethoxy)phenacyl bromide (CAS 1804516-84-4)
- 3-Methoxy-4-methylphenyl Isocyanate (CAS 61386-73-0)
- Aminocarb (CAS 2032-59-9)
- 1-(2-Methoxyphenyl)ethylamine (CAS 40023-74-3)
- 3-Pyrrolidinylmethyl cyclopentanecarboxylatehydrochloride (CAS 1220038-35-6)
- 3-((2-Methyl-1H-imidazol-4-yl)ethynyl)benzonitrile (CAS 808773-42-4)
- Semaglutide impurity 55 (CAS CATO-C4X-222655)
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