4,5-Dibromo-3(2H)-pyridazinone
4,5-Dibromopyridazin-3(2H)-one
CAS: 5788-58-9
Molecular Formula: C4H2Br2N2O
4,5-Dibromo-3(2H)-pyridazinone - Names and Identifiers
| Name | 4,5-Dibromopyridazin-3(2H)-one |
| Synonyms | 4,5-Dibromo-3-pyridazone 4,5-Dibromopyridazin-3-one 4,5-DIBROMOPYRIDAZIN-3-ONE 4,5-Dibromo-3[2H]-pyridazone 4,5-Dibromo-3(2H)-pyridazinon 4,5-DIBROMO-3(2H)-PYRIDAZINONE 4,5-Dibromopyridazin-3(2H)-one 4,5-DIBROMOPYRIDAZIN-3[2H]-ONE 4,5-DIBROMO-2H-PYRIDAZIN-3-ONE 4,5-Dibromo-3(2H)-pyridazinone N'-(5-bromo-2-oxo-3-indolyl)-1-naphthalenesulfonohydrazide N'-(5-bromo-2-oxo-2H-indol-3-yl)naphthalene-1-sulfonohydrazide |
| CAS | 5788-58-9 |
| InChI | InChI=1/C18H12BrN3O3S/c19-12-8-9-15-14(10-12)17(18(23)20-15)21-22-26(24,25)16-7-3-5-11-4-1-2-6-13(11)16/h1-10,22H,(H,20,21,23) |
| InChIKey | AGLQURQNVJVJNB-UHFFFAOYSA-N |
4,5-Dibromo-3(2H)-pyridazinone - Physico-chemical Properties
| Molecular Formula | C4H2Br2N2O |
| Molar Mass | 253.88 |
| Density | 2.53±0.1 g/cm3(Predicted) |
| Melting Point | 231-233°C |
| Boling Point | 556°C at 760 mmHg |
| Flash Point | 290°C |
| Vapor Presure | 2.12E-12mmHg at 25°C |
| Appearance | Yellow-like crystals |
| Color | White to Light yellow to Light orange |
| BRN | 121469 |
| pKa | 8.39±0.60(Predicted) |
| Storage Condition | Keep in dark place,Sealed in dry,Room Temperature |
| Refractive Index | 1.747 |
| MDL | MFCD00023641 |
4,5-Dibromo-3(2H)-pyridazinone - Risk and Safety
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. |
| Hazard Class | IRRITANT |
4,5-Dibromo-3(2H)-pyridazinone - Reference Information
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| Use | 4, 5-dibromopyridazin-3-one is an organic intermediate, it can be used for the preparation of 2-(2-tetrahydropyran)-4, 5-dibromopyridazin-3-one. 4, 5-dibromopyridazin-3-one can be prepared by reacting mucbromic acid, hydrazine dihydrochloride and sodium acetate. |
Last Update：2024-04-09 02:00:09
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View History
4,5-Dibromo-3(2H)-pyridazinone
FEMA 3661
N-ALPHA-CARBOBENZOXY-CYCLOLEUCINE
2-[(4-methylphenyl)sulfonyl]cyclohexanol
铝箔
Triclopyr 100 μg/mL in Methanol
FEMA 3661
N-ALPHA-CARBOBENZOXY-CYCLOLEUCINE
2-[(4-methylphenyl)sulfonyl]cyclohexanol
铝箔
Triclopyr 100 μg/mL in Methanol