Maxacalcitol Impurity 3 CAS 132071-85-3
| CAS No. | 132071-85-3 |
| Molecular Formula | C26H42O4 |
| Molecular Weight | 418.61 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Maxacalcitol Impurity 3 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.
As a process- or degradation-related impurity, Maxacalcitol Impurity 3 (CAS 132071-85-3, C26H42O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Maxacalcitol Impurity 3 (C26H42O4) 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 presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | 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.) | 1994 |
Related Maxacalcitol Standards
- Maxacalcitol (CAS 103909-75-7)
- Maxacalcitol Impurity 1 (CAS 169218-34-2)
- Maxacalcitol Impurity 11 (CAS 142785-55-5)
- Maxacalcitol Impurity 12 (CAS 142927-18-2)
- Maxacalcitol Impurity 2 (CAS 221696-55-5)
- Maxacalcitol Impurity 4 (CAS 338956-39-1)
- Maxacalcitol Impurity 7 (CAS CATO-C4X-27887)
- Maxacalcitol Impurity 8 (CAS 929721-98-2)
Recommended Standards
- Phthalic acid, bis-7-methyloctyl ester (CAS 20548-62-3)
- Finasteride Impurity 62 (CAS CATO-C4X-164562)
- Phthalic acid, bis-2-methyloctyl ester (CAS 70857-56-6)
- Finasteride Impurity 52 (CAS CATO-C4X-164552)
- Lefamulinum Impurity 38 (CAS CATO-C4X-304738)
- Ceftizoxime Impurity 9 (CAS 64918-77-0)
- Difelikefalin Impurity 75 (CAS CATO-C4X-304175)
- 1-(2,4-Dimethylphenyl)-2-methylpropan-2-amine (CAS 105254-10-2)
- 3-Bromo-5-nitro-2-(piperidin-1-yl)pyridine (CAS 1065074-87-4)
- Acetaminophen Impurity 34 (CAS 146897-60-1)
- 2-(3,5-Dimethyl-4-(morpholin-3-yl)-1H-pyrazol-1-yl)acetic acid (CAS 1713602-42-6)
- 3-(6-Amino-2-oxopyrimidin-1(2H)-yl)propanoic acid (CAS 5452-84-6)
- 4-((5-Aminopyridin-2-yl)oxy)benzoic acid (CAS 887350-55-2)
- Peptide Impurity 13 (CAS CATO-CPTD788813)
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