Benserazide Impurity 22 CAS 13677-79-7
| CAS No. | 13677-79-7 |
| Molecular Formula | C7H6O4 |
| Molecular Weight | 154.12 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Benserazide Impurity 22 is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
As a process- or degradation-related impurity, Benserazide Impurity 22 (CAS 13677-79-7, C7H6O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Benserazide Impurity 22 (C7H6O4) 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).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
CATO manufactures Benserazide Impurity 22 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 | C7H6O4 |
| Molecular Weight | 154.12 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1960 |
Related Benserazide Standards
- Benserazide Impurity 18 (CAS 2144-08-3)
- Benserazide Impurity 19 (CAS 487-70-7)
- Benserazide Impurity 20 (CAS 35094-87-2)
- Benserazide Impurity 31 (CAS 437988-46-0)
- Benserazide Impurity 53 (CAS 773868-38-5)
- Benserazide Impurity 32 (CAS 3955-29-1)
- Benserazide Impurity 59 (CAS CATO-C4X-142759)
- Benserazide Impurity 21 (CAS 5625-41-2)
Recommended Standards
- Acipimox (CAS 51037-30-0)
- Acipimox Impurity 16 (CAS 51037-31-1)
- Acipimox Impurity 2 (CAS 98502-96-6)
- Mesalazine EP Impurity G (CAS 490-79-9)
- Levosimendan impurity 78 (CAS 131741-36-1)
- Aztreonam Impurity 24 (CAS CATO-C4X-152224)
- Ketoprofen Impurity 13 (CAS 56105-81-8)
- tert-Butyl cyclopropyl(5-(1-methylpyrrolidin-2-yl)pyridin-2-yl)carbamate (CAS 1352490-44-8)
- 4,5-Diiodo-2-(tetrahydro-2H-pyran-4-yl)pyridazin-3(2H)-one (CAS 1706464-46-1)
- (3aR,4R,5R,6aS)-4-((R,E)-3-Hydroxy-4-(3-(trifluoromethyl)phenoxy)but-1-en-1-yl)hexahydro-2H-cyclopenta[b]furan-2,5-diol (CAS 1204185-88-5)
- 1-(3-Chloropropyl)-1H-indole (CAS 134186-71-3)
- 3-(methoxycarbonyl)-1-phenyl-1H-pyrazole-5-carboxylic acid (CAS 1258650-37-1)
- Methyl (3S,4S)-4-amino-1-benzylpiperidine-3-carboxylate (CAS 1398937-58-0)
- Tirzepatide Impurity 50 (CAS CATO-C4X-324050)
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