丁炔二酸二叔丁酯 乙炔二羧酸二叔丁酯

丁炔二酸二叔丁酯 乙炔二羧酸二叔丁酯

ditert-butyl but-2-ynedioate

66086-33-7

C12H18O4

226.26900

52.60000

1.67320

226.12100

1.457

>230 °F

2-8ºC

33-37ºC(lit.)

1.042g/cm3

80-82ºC0.05 mm Hg(lit.)

III

2917190090

UN 3261 8/PG 3

R34; R36/37

S26; S27; S28; S36/37/39; S45

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%