4-Chloro-2-methyl-2H-benzo[b]pyridazino[4,3-e][1,4]oxazin-3(5H)-one CAS 66613-93-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 66613-93-2 |
| Molecular Formula | C11H8ClN3O2 |
| Molecular Weight | 249.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
High-purity 4-Chloro-2-methyl-2H-benzo[b]pyridazino[4,3-e][1,4]oxazin-3(5H)-one (CAS 66613-93-2) pharmaceutical standards reference standard. Molecular formula: C11H8ClN3O2. Molecular weight: 249.65 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C11H8ClN3O2 |
| Molecular Weight | 249.65 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Chloro Standards
- 3-Chloro-6-(4-methyl-3-nitrophenyl)pyridazine (CAS 1030584-84-9)
- 4-Chloro-6-methyl-2-(4-nitrophenyl)pyrimidine (CAS 1153408-91-3)
- 2-Chloro-5-(pyrimidin-2-ylamino)benzoic acid (CAS 1184378-11-7)
- 5-Chloro-2-phenoxynicotinic acid (CAS 1189749-38-9)
- 2-Chloro-6-methyl-5-nitro-3,3'-bipyridine (CAS 1214352-55-2)
- 6-Chloro-4-methyl-5-nitro-3,4'-bipyridine (CAS 1214371-42-2)
- 6-Chloro-2-methyl-5-nitro-3,4'-bipyridine (CAS 1214377-62-4)
- 2-Chloro-6-methyl-5-nitro-3,4'-bipyridine (CAS 1214387-21-9)
Recommended Standards
- 4-Chloro-1-nitro-2-phenoxybenzene (CAS 56966-63-3)
- 5-(3-chlorophenoxy)pyridine-2-carboxylic acid (CAS 72133-34-7)
- 4-Amino-5-chloro-[2,4'-bipyridine]-6-carboxylic acid (CAS 496852-27-8)
- 2-(3-Hydroxypropyl)-4-methoxyphenol (CAS 33538-76-0)
- 1-(Cyclopropylmethyl)-4-ethynyl-1H-pyrazole (CAS 2098147-97-6)
- {[(1S,2S)-2-Amino-1,2-diphenylethyl](4-toluenesulfonyl)amido}(p-cymene)(pyridine)ruthenium(II) tetrafluoroborate (CAS 1192483-28-5)
- 1-(Fluoromethyl)-2-oxabicyclo[2.2.1]heptane-4-carboxylic acid (CAS 2460755-32-0)
- 9,9-Bis(3,4-dihydroxyphenyl)fluorene (CAS 351521-78-3)
- 9-Oxo-6,7,8,9-tetrahydro-5H-benzo[7]annulen-2-yl pivalate (CAS 87451-94-3)
- Cycloaspeptide A (CAS 109171-13-3)
Why CATO?
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- Technical support: +86 13829788188 / jacky.chen@cato-chem.com