N-Nitroso Clozapine EP Impurity A CAS 90353-66-5
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 90353-66-5 |
| Molecular Formula | C13H8ClN3O2 |
| Molecular Weight | 273.67 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
N-Nitroso Clozapine EP Impurity A (CAS 90353-66-5) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C13H8ClN3O2. Molecular weight: 273.67 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C13H8ClN3O2 |
| Molecular Weight | 273.67 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
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Recommended Standards
- tert-Butyl (4-chloro-5-nitropyridin-2-yl)carbamate (CAS 914952-36-6)
- Ethacridine Lactate Impurity 7 (CAS CATO-C4X-26097)
- tert-Butyl (2-chloro-5-nitropyridin-4-yl)carbamate (CAS 240815-74-1)
- Aprepitant impurity 63 (CAS CATO-C4X-114163)
- Peptide Impurity 34 (CAS 21282-09-7)
- L-Dicentrine (CAS 28832-07-7)
- 2-(Bromomethyl)-1,4-dichloro-3-fluorobenzene (CAS 916420-69-4)
- 2-Bromo-2-iodo-1,1,1-trifluoropropane (CAS 1309602-72-9)
- 4,6-Dichloro-2-(chloromethyl)quinazoline 61164-82-7 6650AE C9H5Cl3N2 (CAS 61164-82-7)
- Prolactin-Releasing Peptide (1-31) (rat) (CAS 215510-06-8)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 13829788188 / jacky.chen@cato-chem.com