7-Chloro-4,5-dihydro-1H-benzo[e][1,4]diazepin-2(3H)-one CAS 258850-08-7
| CAS No. | 258850-08-7 |
| Molecular Formula | C9H9ClN2O |
| Molecular Weight | 196.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 7-Chloro-4,5-dihydro-1H-benzo[e][1,4]diazepin-2(3H)-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.
CATO supplies 7-Chloro-4,5-dihydro-1H-benzo[e][1,4]diazepin-2(3H)-one (CAS 258850-08-7), a certified reference material (molecular formula C9H9ClN2O, MW 196.63 g/mol) for analytical method development and quality control.
7-Chloro-4,5-dihydro-1H-benzo[e][1,4]diazepin-2(3H)-one (C9H9ClN2O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C9H9ClN2O |
| Molecular Weight | 196.63 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloro Standards
- (E)-3-(2-Chloro-4-methylphenyl)acrylic acid (CAS 1021949-53-0)
- 6-Chloro-7-methylchroman-4-one (CAS 102541-24-2)
- 5-Chloro-4-methoxy-2,3-dihydro-1H-inden-1-one (CAS 1033811-70-9)
- 5-Chloro-6-hydroxy-3,4-dihydronaphthalen-1(2H)-one (CAS 1035796-32-7)
- (5-chloro-6-methyl-1,3-benzoxazol-2-yl)methylamine hydrochloride (CAS 1035840-75-5)
- 4-Chloro-6-methoxy-2,3-dihydro-1H-inden-1-one (CAS 1092347-56-2)
- 5-Chloro-8-methylchroman-4-one (CAS 1092349-11-5)
- 8-Chloro-6-methyl-3,4-dihydro-2H-1-benzopyran-4-one (CAS 1092349-58-0)
Recommended Standards
- 7-Chloro-3,3-dimethyl-1,3-dihydro-2H-pyrrolo[2,3-c]pyridin-2-one (CAS 2092061-66-8)
- 7-Chloro-4-methoxy-2,3-dihydro-1H-inden-1-one (CAS 34911-21-2)
- 7-Chloro-2,3-dihydro-1H-indene-1-carboxylic acid (CAS 66041-27-8)
- 7-Chloroisochromane-5-carbaldehyde (CAS 2828463-37-0)
- (1R,2S)-2-(methylamino)cyclohexan-1-ol hydrochloride (CAS 218964-42-2)
- 2-((2-Amino-4-(trifluoromethyl)phenyl)(ethyl)amino)ethan-1-ol (CAS 1178787-47-7)
- N-(4-Aminophenyl)-2-(4-chlorophenoxy)acetamide (CAS 953717-19-6)
- 2-(Difluoromethyl)-4,6-dihydroxypyridine-3-carboxylic acid (CAS 1806031-24-2)
- 1-((4-Methylthiazol-2-yl)methyl)-8-(trifluoromethoxy)quinolin-4(1H)-one (CAS 1445148-08-2)
- 1,1,5,5-Tetrafluoro-2,4-pentanedione (CAS 70086-62-3)
- 3-Amino-4-methoxybut-2-enenitrile (CAS 168686-01-9)
- 1-(Benzo[d][1,3]dioxol-5-yl)-3-((3,4-dimethylphenyl)amino)propan-1-one (CAS 477319-12-3)
- 2-(4-(Trifluoromethyl)phenyl)-7,8-dihydro-3H-thiopyrano[3,2-d]pyrimidin-4(6H)-one (CAS 1450790-46-1)
- Insulin Degludec Impurity 27 (CAS CATO-C4X-215727)
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