4-Bromo-5-methyl-1,2-dihydro-3H-pyrazol-3-one CAS 89363-91-7
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 89363-91-7 |
| Molecular Formula | C4H5BrN2O |
| Molecular Weight | 177.00 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Order 4-Bromo-5-methyl-1,2-dihydro-3H-pyrazol-3-one (CAS 89363-91-7) pharmaceutical standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C4H5BrN2O. Molecular weight: 177.00 g/mol. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C4H5BrN2O |
| Molecular Weight | 177.00 g/mol |
| Appearance | 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1982 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
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- 2-Bromo-1-(5-chloro-2-fluorophenyl)ethanone (CAS 725743-40-8)
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- 2-(4-Fluorophenyl)-N-(2-methoxybenzyl)ethan-1-amine hydrobromide (CAS 1609407-56-8)
- tert-Butyl (2S,4S)-2-(5-chloro-3-(3-fluorophenyl)-4-oxo-3,4-dihydropyrrolo[2,1-f][1,2,4]triazin-2-yl)-4-fluoropyrrolidine-1-carboxylate (CAS 1551158-99-6)
- Insulin Degludec Impurity 10 (CAS CATO-C4X-215710)
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