Calcipotriol EP Impurity C CAS 113082-99-8
| CAS No. | 113082-99-8 |
| Molecular Formula | C27H40O3 |
| Molecular Weight | 412.60 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.
Calcipotriol EP Impurity C (CAS 113082-99-8) is a certified pharmaceutical impurity reference standard with the molecular formula C27H40O3 and a molecular weight of 412.60 g/mol.
The molecular framework of Calcipotriol EP Impurity C (C27H40O3) 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).
As a certified reference material (CRM), Calcipotriol EP Impurity C 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 | C27H40O3 |
| Molecular Weight | 412.60 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >90% |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
Related Calcipotriol Standards
- Calcipotriol (CAS 112828-00-9)
- Calcipotriol Impurity A (CAS 126860-84-2)
- Calcipotriol Impurity 13 (CAS 112849-47-5)
- Calcipotriol EP Impurity B (CAS 2948288-30-8)
- Calcipotriol Impurity 25 (CAS CATO-C4X-122225)
- Calcipotriol (CAS 112965-21-6)
- Calcipotriol EP Impurity D (CAS 112827-99-3)
- Calcipotriol Impurity 41 (CAS CATO-C4X-122241)
Recommended Standards
- 6870-79-7 Diosgenone (CAS 6870-79-7)
- Calcipotriol Impurity 43 (CAS 176302-02-6)
- Sanabo (CAS 912-57-2)
- Calcipotriol EP Impurity I (CAS CATO-C4X-12229)
- Dolutegravir Impurity 20 (CAS 1341434-11-4)
- Butylphthalide Impurity 39 (CAS 1485081-25-1)
- Tofacitinib Impurity 226 (CAS 2101951-13-5)
- Ziprasidone Impurity 79 (CAS 661463-77-0)
- Xanthohumol (CAS 6754-58-1)
- 4-(1,3,6,2-DIoxazaborocan-2-yl)benzonitrile (CAS 1280078-62-7)
- 7-Bromo-2-iodo-1H-pyrrolo[3,2-c]pyridine (CAS 1260386-65-9)
- 7-Chloro-5H-indeno[1,2-c]pyridin-5-one (CAS 114995-34-5)
- Piperazine Impurity 32 (CAS CATO-C4X-242732)
- Cyclolinopeptide B (CAS 193139-41-2)
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