7a-Hydroxy-4-cholesten-3-one CAS 3862-25-7
| CAS No. | 3862-25-7 |
| Molecular Formula | C27H44O2 |
| Molecular Weight | 400.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 7a-Hydroxy-4-cholesten-3-one meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
7a-Hydroxy-4-cholesten-3-one (CAS 3862-25-7) is a high-purity analytical reference standard with the molecular formula C27H44O2 and a molecular weight of 400.64 g/mol.
7a-Hydroxy-4-cholesten-3-one (C27H44O2) 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 high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C27H44O2 |
| Molecular Weight | 400.64 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store at room temperature, protect from light |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
Related a Standards
- 7-β-Hydroxy-4-cholesten-3-one (CAS 25876-54-4)
- 56792-59-7 27-hydroxy cholestenone (CAS 56792-59-7)
- 3-epi-25-Hydroxy Vitamin D3 (CAS 73809-05-9)
- (7a)-7-Hydroxy-3-oxo-chola-1,4-dien-24-oic Acid Methyl Ester (CAS 125626-78-0)
- 7β-Hydroxy-15β,16β-methylene-3β-pivaloyloxy-5-androsten-17-one (CAS 82543-09-7)
- 2alpha-Hydroxy Megestrol Acetate (CAS 18609-39-7)
- 4-(((2-Hydroxy-4-methyl-6-oxocyclohex-1-en-1-yl)methylene)amino)-N-(4-methylpyrimidin-2-yl)benzenesulfonamide (CAS 1023576-56-8)
- 5-Hydroxy-7-methyl-1,8-naphthyridin-2(1H)-one (CAS 6238-48-8)
Recommended Standards
- Calcifediol Impurity 9 (CAS CATO-C4X-18929)
- 7-Keto Cholesterol (CAS 566-28-9)
- Calcifediol (CAS 19356-17-3)
- Calcifediol Impurity 5 (CAS 69556-15-6)
- 2-[2-(4-methyl-1,3-thiazol-5-yl)-1h-1,3-benzodiazol-1-yl]acetic acid (CAS 1094744-10-1)
- n-(4,5-Dihydro-1,3-thiazol-2-yl)acetamide (CAS 6558-31-2)
- 0ME957NZRY 16498-21-8 Oxaflumazine Oxaflumazine [INN:DCF] 10-(3-(4-(2-m-Dioxanylethyl)-1-piperazinyl)propyl)-2-(trifluoromethyl) phenothiazine Ossaflumazina [DCIT] Oxaflumazina [INN-Spanish] Oxaflumazinum [INN-Latin] 10-(3-(4-(2-(1-Dioxixan-2-yl)ethyl)-1-piperazinyl)propyl)-2-trifluormethylphenothiazin SD 270-31 Ossaflumazina Oxaflumazina Oxaflumazinum UNII-0ME957NZRY SD 270-31 [as disuccinate] (CAS 16498-21-8)
- (2E)-1-(2,5-Dichlorophenyl)-3-(2,4-dimethoxyphenyl)prop-2-en-1-one (CAS 183798-63-2)
- Alogliptin Impurity 39 (CAS 6297-80-9)
- 1-Hexanol, 6-[(4-methylphenyl)sulfonyl]- (CAS 142004-72-6)
- 3-(4-methylphenyl)piperidine (CAS 755699-91-3)
- N-(2-Butoxyphenyl)-3,4-dimethylbenzamide (CAS 433706-65-1)
- 1-(2-Fluorophenyl)prop-2-en-1-amine (CAS 1260855-24-0)
- D-Phe6-Tirzepatide (CAS CATO-CPTD788925)
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