552-21-6

552-21-6结构式
552-21-6结构式

化源商城直购

英文名 2-[(6-carboxy-2,3,4-trihydroxyphenyl)methyl]-3,4,5-trihydroxybenzoic acid
英文别名 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
密度 1.909g/cm3
沸点 820.9ºC at 760 mmHg
分子式 C15H12O10
分子量 352.25000
闪点 464.1ºC
精确质量 352.04300
PSA 195.98000
LogP 0.90740
折射率 1.825
海关编码 2918290000

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552-21-6结构式

552-21-6

文献:Baeyer Chemische Berichte, 1872 , vol. 5, p. 1098

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552-21-6结构式

552-21-6

文献:Moehlau; Kahl Chemische Berichte, 1898 , vol. 31, p. 271
上游产品  3

下游产品  0

海关编码 2918290000
中文概述 2918290000 其他含酚基但不含其他含氧基羧酸及其酸酐、酰卤化物、过氧化物和过氧酸及它们的衍生物。监管条件:AB(入境货物通关单,出境货物通关单)。增值税率:17.0%。退税率:9.0%。最惠国关税:6.5%。普通关税:30.0%
申报要素 品名, 成分含量, 用途
监管条件 A.入境货物通关单 B.出境货物通关单
检验检疫 R.进口食品卫生监督检验 S.出口食品卫生监督检验
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%