Indobufen Impurity N3 CAS 21762-23-2
| CAS No. | 21762-23-2 |
| Molecular Formula | C10H10N2O2 |
| Molecular Weight | 190.20 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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 supplies Indobufen Impurity N3 (CAS 21762-23-2), a pharmacopoeial impurity reference standard (molecular formula C10H10N2O2, MW 190.20 g/mol) used for the identification and quantification of trace impurities in APIs.
Indobufen Impurity N3 (C10H10N2O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO manufactures Indobufen Impurity N3 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 | C10H10N2O2 |
| Molecular Weight | 190.20 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 2 |
Related Indobufen Standards
- Indobufen Impurity 14 (CAS 94814-82-1)
- Indobufen Impurity 3 (CAS 1379292-20-2)
- Indobufen Impurity 86 (CAS 6555-36-8)
- Indobufen Impurity 84 (CAS CATO-C4X-179284)
- Indobufen Impurity 2 (CAS 881650-49-3)
- Indobufen Impurity 83 (CAS CATO-C4X-179283)
- Indobufen Impurity 17 (CAS 104-03-0)
- Indobufen Impurity 32 (CAS 21762-24-3)
Recommended Standards
- Hydantoin Impurity 2 (CAS 69489-37-8)
- Isopropyl (2-(carbamoyloxy)ethyl)carbamate (CAS 313552-16-8)
- H-D-Phe(4-CN)-OH (CAS 263396-44-7)
- Isopropyl 3-cyanopicolinate (CAS 915408-68-3)
- Ticagrelor Impurity 11 (CAS 2248538-63-6)
- Febantel Impurity 2 (CAS CATO-C4X-29062)
- Adapalene Impurity 12 (CAS 1063712-23-1)
- (2E)-1-{2-[(2-chloro-1,3-thiazol-5-yl)methoxy]phenyl}-3-(dimethylamino)prop-2-en-1-one (CAS 477886-92-3)
- [1-methyl-3-(trifluoromethyl)-1h-pyrazol-4-yl]methanamine (CAS 1185532-72-2)
- Ethyl 2-(1,4-dioxaspiro[4.5]decan-8-ylidene)acetate (CAS 51656-91-8)
- N-tert-Butyl-4-chloropyridine-2-carboxamide (CAS 1007207-76-2)
- Cyprazole (CAS 42089-03-2)
- 1-Bromo-8-(difluoromethoxy)naphthalene (CAS 1261491-76-2)
- Semaglutide impurity 60 (CAS CATO-C4X-222660)
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