4,5-Dibromo-2-methylpyridazin-3(2H)-one CAS 13645-74-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 13645-74-4 |
| Molecular Formula | C5H4Br2N2O |
| Molecular Weight | 267.91 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
High-purity 4,5-Dibromo-2-methylpyridazin-3(2H)-one (CAS 13645-74-4) pharmaceutical standards reference standard. Molecular formula: C5H4Br2N2O. Molecular weight: 267.91 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C5H4Br2N2O |
| Molecular Weight | 267.91 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1960 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
- (3,6-Dibromopyrazin-2-yl)methanol (CAS 1270497-52-3)
- 2-Amino-3,5-dibromopyridin-4-ol (CAS 1261269-58-2)
- 4,5-Dibromofuran-2-carboximidamide (CAS 1247444-20-7)
- 5-Chloro-2,4-dimethoxybenzoic acid (CAS 23053-81-8)
- 2-[(4-bromo-2-nitrophenyl)amino]-2-methylpropanoic acid (CAS 1293197-77-9)
- 2-(4-(Benzo[d][1,3]dioxol-5-yl)thiazol-2-yl)-3-(3,4,5-trimethoxyphenyl)acrylonitrile (CAS 683250-83-1)
- Phytomenadione/Vitamin K1 Impurity 87 (CAS CATO-C4X-220787)
- Levothyroxine EP Impurity D (CAS 67-30-1)
- N,N'-((3aR,4S,7R,7aS)-5-(hydroxymethyl)-2,2-dimethyl-3a,4,7,7a-tetrahydrobenzo[d][1,3]dioxole-4,7-diyl)dibenzamide (CAS 1998128-26-9)
- D-Gln19-Tirzepatide (CAS CATO-CPTD788915)
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