7,9-二甲基-9ah-喹嗪-1,2,3,4-四羧酸四甲酯

7,9-二甲基-9ah-喹嗪-1,2,3,4-四羧酸四甲酯

tetramethyl 7,9-dimethyl-9aH-quinolizine-1,2,3,4-tetracarboxylate

983-36-8

C19H21NO8

391.37200

108.44000

0.71490

391.12700

1.56

262.8ºC

1.32g/cm3

510.8ºC at 760 mmHg

2917190090

品名, 成分含量, 用途, 对苯二甲酸请注明4-CBA值, 对苯二甲酸请注明P-TL酸值, 对苯二甲酸请注明色度, 对苯二甲酸请注明水分

2917190090 其他无环多元羧酸. 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%

2917190090 acyclic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%