Nitrazepam EP Impurity D CAS 33311-76-1
| CAS No. | 33311-76-1 |
| Molecular Formula | C23H15N3O6 |
| Molecular Weight | 429.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Nitrazepam EP Impurity D 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 Nitrazepam EP Impurity D (CAS 33311-76-1), a certified reference material (molecular formula C23H15N3O6, MW 429.38 g/mol) for analytical method development and quality control.
The molecular framework of Nitrazepam EP Impurity D (C23H15N3O6) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C23H15N3O6 |
| Molecular Weight | 429.38 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Nitrogen Atoms | 3 |
Related Nitrazepam Standards
Recommended Standards
- 8-(2,4-Dihydroxyphenyl)-7-hydroxy-2-(2-hydroxy-4-oxocyclohexa-2,5-dien-1-ylidene)-2H-phenoxazin-3(10H)-one (CAS 71939-12-3)
- 2-(2-(3-(4-Nitrophenyl)-5-oxo-1-phenyl-1,5-dihydro-4H-pyrazol-4-ylidene)hydrazinyl)benzoic acid (CAS 314763-48-9)
- 3,3'-Disulfanediylbis(N-(2-chlorophenyl)propanamide) (CAS 33312-23-1)
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- Mirogabalin Impurity 64 (CAS 1644251-71-7)
- 5-Isopropoxy-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 2223038-00-2)
- 1-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)-N-(4-isopropylphenyl)-1H-pyrrole-2-carboxamide (CAS 338956-40-4)
- 7-Iodo-1,2,3,4-tetrahydroisoquinoline (CAS 72299-62-8)
- Methyl 3-amino-4-(tert-butyl)benzoate (CAS 24812-91-7)
- 5-Hydroxy-4-methyl-2H-thiopyran-3(6H)-one (CAS 61363-72-2)
- Semaglutide Impurity 183 (CAS 159541-28-3)
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