2,3-二溴-4-氧-2-丁烯酸

2,3-二溴-4-氧-2-丁烯酸

2,3-dibromo-4-oxobut-2-enoic acid

21577-50-4

C4H2Br2O3

257.86500

54.37000

1.27130

255.83700

1.625

148.4ºC

5.99E-05mmHg at 25°C

2.43g/cm3

321.8ºC at 760mmHg

2918300090

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: