环香豆素

环香豆素

2-methoxy-2-methyl-4-phenyl-3,4-dihydropyrano[3,2-c]chromen-5-one

518-20-7

C20H18O4

322.35500

48.67000

4.07000

322.12100

1.624

216.2ºC

1.27g/cm3

488.6ºC at 760 mmHg

III

6.1(b)

2932999099

UN 2811

R27

28-36/37-45

T+

品名, 成分含量, 用途

2932999099. 其他仅含氧杂原子的杂环化合物. 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%

2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%