Carbidopa EP Impurity A Sesquihydrate CAS 41372-08-1
| CAS No. | 41372-08-1 |
| Molecular Formula | 2*C10H13NO4 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Carbidopa EP Impurity A Sesquihydrate is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
As a process- or degradation-related impurity, Carbidopa EP Impurity A Sesquihydrate (CAS 41372-08-1, C10H13NO4H2O) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Carbidopa EP Impurity A Sesquihydrate (C10H13NO4H2O) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. 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 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.
CATO manufactures Carbidopa EP Impurity A Sesquihydrate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | 2*C10H13NO4 3*H2O |
| Molecular Weight | 229.23 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
| Nitrogen Atoms | 1 |
Related Carbidopa Standards
- Carbidopa Impurity 36 (CAS 1026009-73-3)
- Carbidopa EP Impurity B Hydrochloride (CAS 115054-62-1)
- rac-Carbidopa EP Impurity I (CAS 1246819-09-9)
- (S)-(-)-Carbidopa-d3 H2O (ring-d3) (CAS 1276197-58-0)
- Carbidopa-d3 (CAS 1276732-89-8)
- Carbidopa EP Impurity H (CAS 1361017-74-4)
- (S)-(-)-Carbidopa-d5 (CAS 1426174-03-9)
- Carbidopa EP Impurity F (CAS 1458640-32-8)
Recommended Standards
- Selexipag Impurity 15 (CAS CATO-C4X-196115)
- Benserazide Impurity 5 (CAS CATO-C4X-14275)
- Indapamide Impurity 47 (CAS CATO-C4X-140047)
- 4,4'-(4-(4-(Diphenylamino)phenyl)pyridine-2,6-diyl)dibenzoic acid (CAS 573685-54-8)
- Phenyl-tetrazol-1-yl-acetic acid (CAS 876716-29-9)
- 3-(3-(Difluoromethyl)-1H-pyrazol-1-yl)propan-1-amine hydrochloride (CAS 1855888-84-4)
- 5-Chloro-n-cyclobutylpyridin-2-amine (CAS 1250716-33-6)
- n-[4-(pyridin-2-yl)-1,3-thiazol-2-yl]-2-(2,4,6-trimethylphenoxy)acetamide (CAS 752219-52-6)
- 2-Hydroxy-N-(m-tolyl)benzamide (CAS 7133-57-5)
- Peptide 437 (CAS CATO-CPTD788437)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com