Maxacalcitol Impurity 12 CAS 142927-18-2
| CAS No. | 142927-18-2 |
| Molecular Formula | C26H42O4 |
| Molecular Weight | 418.61 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Maxacalcitol Impurity 12 (CAS 142927-18-2), a pharmacopoeial impurity reference standard (molecular formula C26H42O4, MW 418.61 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Maxacalcitol Impurity 12 (C26H42O4) contains a steroid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 418.61 g/mol, it falls into the moderately-high-molecular-weight range. 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.
As a certified reference material (CRM), Maxacalcitol Impurity 12 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.
Physical & Chemical Properties
| Molecular Formula | C26H42O4 |
| Molecular Weight | 418.61 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
Related Maxacalcitol Standards
- Maxacalcitol (CAS 103909-75-7)
- Maxacalcitol Impurity 1 (CAS 169218-34-2)
- Maxacalcitol Impurity 11 (CAS 142785-55-5)
- Maxacalcitol Impurity 2 (CAS 221696-55-5)
- Maxacalcitol Impurity 3 (CAS 132071-85-3)
- Maxacalcitol Impurity 4 (CAS 338956-39-1)
- Maxacalcitol Impurity 7 (CAS CATO-C4X-27887)
- Maxacalcitol Impurity 8 (CAS 929721-98-2)
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- n-(Benzo[d][1,3]dioxol-5-ylmethyl)-2-(2,4-dichlorophenoxy)propanamide (CAS 329694-16-8)
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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
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com