4,7-二氰基苯并呋咱

4,7-二氰基苯并呋咱

2,1,3-benzoxadiazole-4,7-dicarbonitrile

20138-81-2

C8H2N4O

170.12800

86.50000

0.96616

170.02300

1.662

193.1ºC

1.82E-06mmHg at 25°C

1.51g/cm3

395.6ºC at 760 mmHg

2934999090

品名, 成分含量, 用途

2934999090. 其他杂环化合物. 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%

2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

2934999090. Other nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds. General tariff: