9-芴酮-2,7-二羧酸

9-芴酮-2,7-二羧酸

9-Oxo-9H-fluorene-2,7-dicarboxylic acid

792-26-7

C15H8O5

268.22100

91.67000

2.29440

268.03700

1.729

343.6ºC

407 °C

1.578g/cm3

621.3ºC at 760 mmHg

2918300090

R36/37/38

S26-S36/37/39

品名, 成分含量, 用途

2918300090 其他含醛基或酮基不含其他含氧基羧酸（包括酸酐、酰卤化物、过氧化物和过氧酸及该税号的衍生物）. 增值税率:17.0% 退税率:9.0% 监管条件:无 最惠国关税:6.5% 普通关税:30.0%

2918300090 other carboxylic acids with aldehyde or ketone function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%

2918300090. Other carboxylic acids with aldehyde or ketone function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives. General tariff: