21577-50-4
21577-50-4 structure
- Name: 2-Butenoic acid,2,3-dibromo-4-oxo-
- Chemical Name: 2,3-dibromo-4-oxobut-2-enoic acid
- CAS Number: 21577-50-4
- Molecular Formula: C4H2Br2O3
- Molecular Weight: 257.86500
- Create Date: 2019-01-01 13:07:57
- Modify Date: 2024-01-09 16:09:30
| Name | 2,3-dibromo-4-oxobut-2-enoic acid |
|---|---|
| Synonyms |
2,3-dibromo-4-oxo-but-2-enoic acid
Dibrommaleinaldehydsaeure 2,3-dibromo-4-oxo-crotonic acid 2,3-Dibrom-4-oxo-crotonsaeure 2,3-Dibromo-4-Oxo-2-Butenoic Acid 2,3-Dibromo-4-oxobut-2-enoic acid 2,3-dibromomalealdehydic acid |
| Density | 2.43g/cm3 |
|---|---|
| Boiling Point | 321.8ºC at 760mmHg |
| Molecular Formula | C4H2Br2O3 |
| Molecular Weight | 257.86500 |
| Flash Point | 148.4ºC |
| Exact Mass | 255.83700 |
| PSA | 54.37000 |
| LogP | 1.27130 |
| Vapour Pressure | 5.99E-05mmHg at 25°C |
| Index of Refraction | 1.625 |
| HS Code | 2918300090 |
|---|
| Precursor 9 | |
|---|---|
| DownStream 10 | |
| HS Code | 2918300090 |
|---|---|
| Summary | 2918300090 other carboxylic acids with aldehyde or ketone function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0% |