Vitamin B5 Impurity 5 1/2Calcium salt CAS CATO-C4X-161325
| CAS No. | CATO-C4X-161325 |
| Molecular Formula | 2*C12H21N2O6 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Vitamin B5 Impurity 5 1/2Calcium salt (CAS CATO-C4X-161325), a pharmacopoeial impurity reference standard (molecular formula C12H21N2O6Ca, MW 329.39 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Vitamin B5 Impurity 5 1/2Calcium salt (C12H21N2O6Ca) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | 2*C12H21N2O6 Ca |
| Molecular Weight | 329.39 g/mol |
| Appearance | White to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.5 |
| UV Absorption | UV-absorbing |
| Nitrogen Atoms | 2 |
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