Testosterone Impurity 31 CAS CATO-C4X-132631
| CAS No. | CATO-C4X-132631 |
| Molecular Formula | C33H44O5 |
| Molecular Weight | 520.70 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
Testosterone Impurity 31 (CAS CATO-C4X-132631) is a certified pharmaceutical impurity reference standard with the molecular formula C33H44O5 and a molecular weight of 520.70 g/mol.
Based on its molecular formula C33H44O5, Testosterone Impurity 31 contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 520.70 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures Testosterone Impurity 31 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 | C33H44O5 |
| Molecular Weight | 520.70 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Testosterone Standards
- Testosterone Impurity 30 (CAS CATO-C4X-132630)
- Testosterone Impurity 32 (CAS CATO-C4X-132632)
- Testosterone Impurity N9 (CAS 162890-98-4)
- Testosterone palmitate (CAS 991-20-8)
- Testosterone Impurity 27 (CAS CATO-C4X-132627)
- Testosterone Impurity 28 (CAS CATO-C4X-132628)
- Testosterone Impurity 29 (CAS CATO-C4X-132629)
- Testosterone Impurity 24 (CAS CATO-C4X-132624)
Recommended Standards
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- Deoxycholic acid Impurity 5 (CAS CATO-C4X-33595)
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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