Carbazochrome Impurity 35 CAS CATO-C4X-229135
| CAS No. | CATO-C4X-229135 |
| Molecular Formula | C10H12N4O8S2 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Carbazochrome Impurity 35 (CAS CATO-C4X-229135), a pharmacopoeial impurity reference standard (molecular formula C10H12N4O8S2Na, MW 403.34 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C10H12N4O8S2Na, Carbazochrome Impurity 35 contains a carbohydrate-derived structure, an amide group, a sulfone group; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 403.34 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C10H12N4O8S2 2*Na |
| Molecular Weight | 403.34 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 2 |
Related Carbazochrome Standards
- Carbazochrome Salicylate (CAS 13051-01-9)
- Carbazochrome Impurity N8 (CAS 130570-60-4)
- Carbazochrome Impurity 5 (CAS 2271443-87-7)
- Carbazochrome Impurity N6 (CAS 25574-55-4)
- Carbazochrome Impurity N3 (CAS 2666934-59-2)
- Carbazochrome Impurity N4 (CAS 42372-66-7)
- Carbazochrome Sodium Sulfonate (CAS 51460-26-5)
- Carbazochrome (CAS 69-81-8)
Recommended Standards
- Venetoclax Impurity 147 (CAS CATO-C4X-2495147)
- Chlorpromazine Impurity 4 (HCl) (CAS 5317-37-3（2HCl）)
- Bromocriptine Mesilate EP Impurity G (CAS CATO-C4X-13618)
- (3S,4aR,8aS)-Decahydroisoquinoline-3-carboxylic acid (CAS 147878-20-4)
- (5-Chloro-6-methylpyridin-3-yl)methanol (CAS 917835-64-4)
- 2-Oxo-1,2,3,7-tetrahydro-[1,4]oxazino[3,2-e]indazole-9-carboxylic acid (CAS 1542688-79-8)
- 2-Chloro-3-(difluoromethoxy)-4'-(trifluoromethoxy)-1,1'-biphenyl (CAS 1261865-89-7)
- Benzyl (R)-3-aminopiperidine-1-carboxylatehydrochloride (CAS 1217781-62-8)
- 5-(Decahydroisoquinoline-2-carbonyl)-N-isopropyl-2-methylbenzenesulfonamide (CAS 1021298-11-2)
- D-γ-Glu20-Side-Tirzepatide (CAS CATO-CPTD788929)
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