Bifendate Impurity 13 CAS 3934-86-9
| CAS No. | 3934-86-9 |
| Molecular Formula | C9H10O5 |
| Molecular Weight | 198.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Bifendate Impurity 13 (CAS 3934-86-9) is a high-purity analytical reference standard with the molecular formula C9H10O5 and a molecular weight of 198.17 g/mol.
Bifendate Impurity 13 (C9H10O5) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
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 | C9H10O5 |
| Molecular Weight | 198.17 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
Related Bifendate Standards
- Bifendate impurity N4 (CAS 81474-47-7)
- Bifendate Impurity 4 (CAS CATO-C4X-25554)
- Bifendate Impurity 2 (CAS CATO-C4X-25552)
- Bifendate Impurity A (CAS 118159-47-0)
- Bifendate Impurity N3 (CAS 79279-08-6)
- Bifendate Impurity 5 (CAS CATO-C4X-25555)
- Bifendate Impurity N1 (CAS 128142-41-6)
- Bifendate impurity 10 (CAS CATO-C4X-255510)
Recommended Standards
- Azetidin-1-yl-(3,5-difluoropyridin-2-yl)methanone (CAS 955885-63-9)
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- Adrenaline Impurity 40 (CAS 3695-24-7)
- Ethyl 5-hydroxy-2-methyl-4-oxo-4H-pyran-3-carboxylate (CAS 944269-40-3)
- Methyl 6-fluoro-4,4-dimethyl-2-(3-(pyrrolidin-1-yl)phenyl)-1,2,3,4-tetrahydroquinoline-8-carboxylate (CAS 1391610-33-5)
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Why CATO?
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