Flumazenil Impurity 13 CAS CATO-C4X-143213
| CAS No. | CATO-C4X-143213 |
| Molecular Formula | C11H6FN3O2 |
| Molecular Weight | 231.18 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Flumazenil Impurity 13 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.
CATO supplies Flumazenil Impurity 13 (CAS CATO-C4X-143213), a pharmacopoeial impurity reference standard (molecular formula C11H6FN3O2, MW 231.18 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C11H6FN3O2, Flumazenil Impurity 13 contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 231.18 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | C11H6FN3O2 |
| Molecular Weight | 231.18 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| 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 | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
Related Flumazenil Standards
- Flumazenil Impurity 19 (CAS 548487-68-9)
- Flumazenil Impurity 22 (CAS 193693-31-1)
- Flumazenil Impurity 9 (CAS 5973-29-5)
- Flumazenil EP Impurity D (CAS 78755-80-3)
- Flumazenil Impurity 10 (CAS 162110-24-9)
- Flumazenil EP Impurity A (CAS 84378-44-9)
- Flumazenil Impurity 20 (CAS CATO-C4X-143220)
- Flumazenil EP Impurity E (CAS 78756-03-3)
Recommended Standards
- Emtricitabine impurity 54 (CAS 145397-26-8)
- 3-(trifluoromethyl)benzoyl isothiocyanate (CAS 100663-25-0)
- Emtricitabine impurity 49 (CAS CATO-C4X-123249)
- 3-(4-Fluorophenyl)-3,6-dihydro-7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one (CAS 1031558-09-4)
- Tandospirone Impurity 7 (CAS CATO-C4X-18757)
- Eperisone Impurity N1 (CAS 70639-76-8)
- Daptomycin impurity 50 (CAS CATO-C4X-137850)
- 4-Chloro-1-heptyl-1h-pyrazol-3-amine (CAS 1477807-49-0)
- 4-Fluoro-1-(pyrrolidin-3-yl)piperidine (CAS 1239999-39-3)
- (E)-1-(2,5-dichlorothiophen-3-yl)-3-(dimethylamino)prop-2-en-1-one (CAS 166196-79-8)
- (3-Chloro-4-methylphenyl)(3-methylpiperazin-1-yl)methanone hydrochloride (CAS 1831597-05-7)
- N-(5-Methylisoxazol-4-yl)propionamide (CAS 100499-64-7)
- PotassiumHydroxycitric Salt (CAS 1612218-45-7)
- Insulin Degludec Impurity 6 (CAS CATO-C4X-21576)
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