Valproic Acid Impurity 14 CAS 21269-49-8
| CAS No. | 21269-49-8 |
| Molecular Formula | C12H18O7 |
| Molecular Weight | 274.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies Valproic Acid Impurity 14 (CAS 21269-49-8), a certified reference material (molecular formula C12H18O7, MW 274.27 g/mol) for analytical method development and quality control.
Structurally, Valproic Acid Impurity 14 (C12H18O7) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 274.27 g/mol, it falls into the medium-molecular-weight range. 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).
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 | C12H18O7 |
| Molecular Weight | 274.27 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
Related Valproic Standards
- Valproic Acid b-D-Glucuronide (CAS 60113-83-9)
- Valproic Acid Impurity 74 (CAS 87113-24-4)
- Valproic Acid Impurity 6 (CAS 30379-04-5)
- Valproic Acid Impurity 75 (CAS 1735-09-7)
- Valproic Acid Impurity 72 (CAS 143100-15-6)
- Valproic Acid Impurity F (CAS 6639-15-2)
- Valproic Acid Methyl Ester (CAS 22632-59-3)
- Valproic Acid-d4 (CAS 87745-17-3)
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- Semaglutide impurity 01 (CAS 1998701-31-7)
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