63958-66-7
63958-66-7 structure
- Name: 4,5-dihydroxyphthalic acid
- Chemical Name: 4,5-dihydroxyphthalic acid
- CAS Number: 63958-66-7
- Molecular Formula: C8H6O6
- Molecular Weight: 198.13000
- Create Date: 2017-09-11 12:40:44
- Modify Date: 2025-09-13 23:25:43
| Name | 4,5-dihydroxyphthalic acid |
|---|---|
| Synonyms |
1,2-Benzenedicarboxylic acid,4,5-dihydroxy
4,5-Dhpa |
| Density | 1.779g/cm3 |
|---|---|
| Boiling Point | 535.8ºC at 760mmHg |
| Molecular Formula | C8H6O6 |
| Molecular Weight | 198.13000 |
| Flash Point | 291.9ºC |
| Exact Mass | 198.01600 |
| PSA | 115.06000 |
| LogP | 0.49420 |
| Index of Refraction | 1.717 |
| HS Code | 2918290000 |
|---|
| HS Code | 2918290000 |
|---|---|
| Summary | HS: 2918290000 other carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives Tax rebate rate:9.0% Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward) VAT:17.0% MFN tariff:6.5% General tariff:30.0% |