Alfacalcidol-d6 CAS 1641940-94-4
| CAS No. | 1641940-94-4 |
| Molecular Formula | - |
| Molecular Weight | 406.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Alfacalcidol-d6 (CAS 1641940-94-4) is a high-purity analytical reference standard with the molecular formula C27H38D6O2 and a molecular weight of 406.67 g/mol.
The molecular framework of Alfacalcidol-d6 (C27H38D6O2) is characterized by deuterium isotope labeling, 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 is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C27H38D6O2 |
| Molecular Weight | 406.67 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
Related Alfacalcidol Standards
- Alfacalcidol-d7 (CAS 41294-56-8 (non-d))
- Alfacalcidol (CAS 41294-56-8)
- Alfacalcidol EP Impurity A (CAS 65445-14-9)
- Alfacalcidol impurity 13 (CAS 58028-00-5)
- Alfacalcidol impurity 14 (CAS CATO-C4X-139314)
- Alfacalcidol impurity 15 (CAS 1279049-53-4)
- Alfacalcidol EP Impurity B (CAS 63181-13-5)
- Alfacalcidol Impurity 20 (CAS CATO-C4X-139320)
Recommended Standards
- Tris(2,4,6-trimethylphenyl)phosphine 23897-15-6 TRIMESITYLPHOSPHINE;TRIS(2,4,6-TRIMETHYLPHENYL)PHOSPHINE SC11104 (CAS 23897-15-6)
- Calcifediol Impurity 8 (CAS 78782-98-6)
- 5,6-Dichloro-2-(2-chloropyridin-3-yl)-1-(4-fluorobenzyl)-1H-benzo[d]imidazole (CAS 338774-11-1)
- Dotinurad Impurity 196 (CAS CATO-C4X-2494196)
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- 3,5,10-Trioxo-2,3,5,10-tetrahydrobenzo[g]isoquinolin-9-yl acetate (CAS 135735-66-9)
- 1-(1-Benzofuran-5-yl)hexan-1-one (CAS 1951439-58-9)
- 5-Butyl-7-methoxy-1,6-dimethyl-1H-indol-4-yl acetate (CAS 99497-22-0)
- 8-Fluoro-2-methylquinolin-3-amine (CAS 1259519-93-1)
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- 6-Methyl-2-(1-pyrrolidinyl)-4-pyrimidinamine (CAS 1247645-16-4)
- (Des-His1,Glu?)-Glucagon (1-29) amide (human, rat, porcine) (CAS 110084-95-2)
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