7,7’-亚氨双(4-羟基-2-萘磺酸)

7,7’-亚氨双(4-羟基-2-萘磺酸)

4-hydroxy-7-[(5-hydroxy-7-sulfonaphthalen-2-yl)amino]naphthalene-2-sulfonic acid

87-03-6

C20H15NO8S2

461.46500

177.99000

5.87580

461.02400

1.802

灰色-黄色糊

1.734

2934999090

品名, 成分含量, 用途

2934999090. 其他杂环化合物. 增值税率:17.0%. 退税率:13.0%. 监管条件:无. 最惠国关税:6.5%. 普通关税:20.0%

2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

2934999090. Other nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds. General tariff: