552-21-6
552-21-6 structure
- Name: 3,3',4,4',5,5'-hexahydroxy-2,2'-methylenedi(benzoic acid)
- Chemical Name: 2-[(6-carboxy-2,3,4-trihydroxyphenyl)methyl]-3,4,5-trihydroxybenzoic acid
- CAS Number: 552-21-6
- Molecular Formula: C15H12O10
- Molecular Weight: 352.25000
- Create Date: 2017-01-28 19:48:01
- Modify Date: 2025-08-25 09:10:37
| Name | 2-[(6-carboxy-2,3,4-trihydroxyphenyl)methyl]-3,4,5-trihydroxybenzoic acid |
|---|---|
| Synonyms |
Benzoic acid,2,2'-methylenebis[3,4,5-trihydroxy
3,3',4,4',5,5'-hexahydroxy-2,2'-methylenedi(benzoic acid) EINECS 209-005-4 3,4,5,3',4',5'-hexahydroxy-2,2'-methanediyl-di-benzoic acid Methylenedigallic acid 2,2'-methylenebis(3,4,5-trihydroxybenzoic acid) 3,4,5,3',4',5'-Hexahydroxy-2,2'-methandiyl-di-benzoesaeure |
| Density | 1.909g/cm3 |
|---|---|
| Boiling Point | 820.9ºC at 760 mmHg |
| Molecular Formula | C15H12O10 |
| Molecular Weight | 352.25000 |
| Flash Point | 464.1ºC |
| Exact Mass | 352.04300 |
| PSA | 195.98000 |
| LogP | 0.90740 |
| Index of Refraction | 1.825 |
| HS Code | 2918290000 |
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|
~%
552-21-6 |
| Literature: Baeyer Chemische Berichte, 1872 , vol. 5, p. 1098 |
|
~%
552-21-6 |
| Literature: Moehlau; Kahl Chemische Berichte, 1898 , vol. 31, p. 271 |
| 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% |