Alfacalcidol Impurity 33 CAS CATO-C4X-139333
| CAS No. | CATO-C4X-139333 |
| Molecular Formula | C37H62O3 |
| Molecular Weight | 554.89 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 554.89 g/mol gives Alfacalcidol Impurity 33 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Alfacalcidol Impurity 33 (CAS CATO-C4X-139333), a certified reference material (molecular formula C37H62O3, MW 554.89 g/mol) for analytical method development and quality control.
The molecular framework of Alfacalcidol Impurity 33 (C37H62O3) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Alfacalcidol Impurity 33 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 | C37H62O3 |
| Molecular Weight | 554.89 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | ≥95% |
| 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 Alfacalcidol Standards
- Alfacalcidol Impurity 30 (CAS CATO-C4X-139330)
- Alfacalcidol EP Impurity C (CAS 82266-85-1)
- Alfacalcidol Impurity 32 (CAS CATO-C4X-139332)
- Alfacalcidol Impurity 6 (CAS CATO-C4X-13936)
- Alfacalcidol Impurity 23 (CAS CATO-C4X-139323)
- Alfacalcidol Impurity 27 (CAS CATO-C4X-139327)
- Alfacalcidol Impurity 25 (CAS CATO-C4X-139325)
- Alfacalcidol impurity 01 (CAS 112670-85-6)
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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