Benserazide Impurity 53 CAS 773868-38-5
| CAS No. | 773868-38-5 |
| Molecular Formula | C7H8O4 |
| Molecular Weight | 156.14 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Benserazide Impurity 53 (CAS 773868-38-5), a pharmacopoeial impurity reference standard (molecular formula C7H8O4, MW 156.14 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Benserazide Impurity 53 (C7H8O4) 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 156.14 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).
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
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 | C7H8O4 |
| Molecular Weight | 156.14 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, water |
| 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.) | 1986 |
Related Benserazide Standards
- Benserazide Impurity 31 (CAS 437988-46-0)
- Benserazide Impurity 18 (CAS 2144-08-3)
- Benserazide Impurity 19 (CAS 487-70-7)
- Benserazide Impurity 20 (CAS 35094-87-2)
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- Semaglutide Impurity 165 (CAS CATO-C4X-2226165)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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