(3S,5S,6S,8R,9S,1R,13S,14S,17S)-1,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthrene-3,6,17-triol CAS 49644-04-4
| CAS No. | 49644-04-4 |
| Molecular Formula | C19H32O3 |
| Molecular Weight | 308.46 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
(3S,5S,6S,8R,9S,1R,13S,14S,17S)-1,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthrene-3,6,17-triol (CAS 49644-04-4) is a high-purity analytical reference standard with the molecular formula C19H32O3 and a molecular weight of 308.46 g/mol.
The molecular framework of (3S,5S,6S,8R,9S,1R,13S,14S,17S)-1,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthrene-3,6,17-triol (C19H32O3) is characterized by a steroid 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 high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C19H32O3 |
| Molecular Weight | 308.46 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
Recommended Standards
- (2-((5-Ethyl-2-fluoro-4-(prop-1-yn-1-yl)phenoxy)methoxy)ethyl)trimethylsilane (CAS 1956335-57-1)
- (4-(Tert-butyl)phenyl)(4-pentylphenyl)methanone (CAS 951887-61-9)
- Annosquamosin B (CAS 177742-56-2)
- (Phenylmethylene)bis(phenylsulfane) (CAS 7695-69-4)
- 3-(4-Bromophenyl)thiazolidin-4-one (CAS 338753-34-7)
- (R)-1-(3-((2-Hydroxyethyl)amino)piperidin-1-yl)ethanone (CAS 1354018-45-3)
- tert-butyl 4-oxo-1,2-oxazolidine-2-carboxylate (CAS 2031259-21-7)
- 4-(2-Azepan-1-yl-ethyl)-phenylamine hydrochloride (CAS 1185299-89-1)
- Methanesulfonic acid (4S,5S)-5-[(S)-((R)-2,2-dimethyl-[1,3]dioxolan-4-yl)-methanesulfonyloxy-methyl]-2,2- dimethyl-[1,3]dioxolan-4-ylmethyl ester (CAS 7115-24-4)
- 1,1-[Ethylidenebis(2,3-dichloro-4,1-phenylene)]bis[4-methyl-piperazine (CAS 519138-47-7)
- 2-(4-(Difluoromethyl)-2-hydroxy-6-(trifluoromethoxy)pyridin-3-yl)acetonitrile (CAS 1804347-30-5)
- Telmisartan Impurity 69 (CAS CATO-C4X-135969)
- 1-ethyl-1H-imidazole-4-carboxylic acid (CAS 71925-07-0)
- Semaglutide impurity 258 (CAS CATO-C4X-2226258)
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