9-Chloro-2-methyl-5H-benzo[f]pyrazolo[1,5-d][1,4]diazepin-6(7H)-one CAS 84661-23-4
| CAS No. | 84661-23-4 |
| Molecular Formula | C12H10ClN3O |
| Molecular Weight | 247.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 9-Chloro-2-methyl-5H-benzo[f]pyrazolo[1,5-d][1,4]diazepin-6(7H)-one 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.
9-Chloro-2-methyl-5H-benzo[f]pyrazolo[1,5-d][1,4]diazepin-6(7H)-one (CAS 84661-23-4) is a high-purity analytical reference standard with the molecular formula C12H10ClN3O and a molecular weight of 247.68 g/mol.
The molecular framework of 9-Chloro-2-methyl-5H-benzo[f]pyrazolo[1,5-d][1,4]diazepin-6(7H)-one (C12H10ClN3O) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C12H10ClN3O |
| Molecular Weight | 247.68 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, 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 |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1981 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
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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