刺槐亭

刺槐亭

(2R,3R)-3,7-Dihydroxy-2-(3,4,5-trihydroxyphenyl)chroman-4-one

4382-33-6

C15H12O7

304.25200

127.45000

1.18630

304.05800

1.762

269.6ºC

260ºC (dec.)

1.702 g/cm3

702.4ºC at 760 mmHg

2932999099

R22

S2; S45

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%