Benserazide EP Impurity A HCl CAS 55819-71-1
| CAS No. | 55819-71-1 |
| Molecular Formula | C3H9N3O2 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Benserazide EP Impurity A HCl (CAS 55819-71-1, C3H9N3O2HCl) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Benserazide EP Impurity A HCl (C3H9N3O2HCl) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 0.0, corresponding to approximately 0 ring(s) or double-bond equivalent(s). With a molecular weight of 155.58 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C3H9N3O2 HCl |
| Molecular Weight | 155.58 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 0.0 |
| CAS Registry Year (est.) | 1972 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Benserazide Standards
- Benserazide EP Impurity C HCl (CAS 1353749-74-2)
- Benserazide Impurity 54 (CAS 13558-04-8)
- Benserazide Impurity 60 (CAS 13558-04-8(free base))
- Benserazide Impurity 22 (CAS 13677-79-7)
- Benserazide hydrochloride (CAS 14046-64-1)
- Benserazide HCl (CAS 14919-77-8)
- Benserazide Impurity 18 (CAS 2144-08-3)
- Benserazide EP impurity B (CAS 2472968-83-3)
Recommended Standards
- Vonoprazan Impurity 133 (CAS 15128-82-2)
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