5-azido-4-bromo-2,3-dihydropyridazin-3-one CAS 21456-78-0
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 21456-78-0 |
| Molecular Formula | C4H6BrN5O |
| Molecular Weight | 220.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-azido-4-bromo-2,3-dihydropyridazin-3-one (CAS 21456-78-0) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C4H6BrN5O. Molecular weight: 220.03 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C4H6BrN5O |
| Molecular Weight | 220.03 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 5 |
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Recommended Standards
- 2,4-Dihydrospiro[1,5-benzodioxepine-3,1'-cyclopropane]-6-boronic acid (CAS 2096335-53-2)
- 5-Isopropoxy-1H-indazol-6-yl-6-boronic acid (CAS 2304634-23-7)
- (E)-(4-(3-Ethoxy-3-oxoprop-1-en-1-yl)phenyl)boronic acid (CAS 850568-49-9)
- (2,4-Dimethoxypyrimidin-6-yl)zinc pivalate (0.86 mmol/g) (CAS 1643792-49-7)
- 2-(2-(2-(5-Methyl-2,4-bis(1-phenylethyl)phenoxy)ethoxy)ethoxy)ethanol (CAS 110199-19-4)
- Ethyl 2-methyl-3-(oxan-4-yl)propanoate (CAS 1461715-33-2)
- Methyl 3-Amino-2-naphthoate (CAS 21597-54-6)
- 1-(1H-Pyrrol-1-yl)-1H-benzo[d]imidazole (CAS 75107-05-0)
- 3-Methoxy-4-(trifluoromethyl)benzyl Alcohol (CAS 276861-64-4)
- Semaglutide impurity 103 (CAS 1446013-07-5)
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 13829788188 / jacky.chen@cato-chem.com