Testosterone Impurity 71 CAS CATO-C4X-243271
| CAS No. | CATO-C4X-243271 |
| Molecular Formula | C30H48O3 |
| Molecular Weight | 456.70 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Testosterone Impurity 71 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.
CATO supplies Testosterone Impurity 71 (CAS CATO-C4X-243271), a pharmacopoeial impurity reference standard (molecular formula C30H48O3, MW 456.70 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C30H48O3, Testosterone Impurity 71 contains a steroid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 456.70 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
Physical & Chemical Properties
| Molecular Formula | C30H48O3 |
| Molecular Weight | 456.70 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, 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 |
Related Testosterone Standards
- Testosterone Impurity 1 (CAS 2763446-42-8)
- Testosterone Undecanoate (CAS 5949-44-0)
- Testosterone Decanoate EP Impurity D (CAS 29430-26-0)
- Testosterone Impurity 2 (CAS 89635-04-1)
- Testosterone Impurity 39 (CAS 7219-21-8)
- Testosterone Impurity 4 (CAS CATO-C4X-24324)
- delta-9,11-Testosterone Undecanoate (CAS 2241819-49-6)
- Testosterone Impurity 5 (CAS CATO-C4X-24325)
Recommended Standards
- Vitamin A impurity 26 (CAS CATO-C4X-218726)
- α,α'-Dilaurin (CAS 539-93-5)
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- Dilaurin (CAS 27638-00-2)
- Evocalcet Impurity 39 (CAS CATO-C4X-248539)
- Carfilzomib Impurity 78 (CAS CATO-C4X-102278)
- Ketoprofen Impurity 98 (CAS CATO-C4X-147198)
- Ethyl 7-bromo-2,4,6-trichloro-8-fluoroquinoline-3-carboxylate (CAS 2728716-46-7)
- Pinocembrin-7-O-β-D-glucopyranoside (CAS 75829-43-5)
- 6-Bromo-4-chloro-2-methylbenzo[d]thiazole (CAS 1427363-00-5)
- N-(2,5-Dimethoxybenzyl)-2-(4-fluorophenyl)ethanamine (CAS 355817-17-3)
- 6-Bromo-4-methoxy-2-methyl-2H-indazole (CAS 1809838-05-8)
- Eszopiclone EP Impurity A (CAS 151851-70-6)
- Brain Injury Derived Neurotrophic Peptide (H-3914.0001) (CAS 148330-12-5)
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