5,7-二羟基-4-甲基香豆素

5,7-二羟基-4-甲基香豆素

5,7-dihydroxy-4-methylchromen-2-one

2107-76-8

C10H8O4

192.16800

70.67000

1.51260

192.04200

灰白色固体

1.651

197.8ºC

1.55E-09mmHg at 25°C

Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.

296-299 °C(lit.)

1.456 g/cm3

472.1ºC at 760 mmHg

GHS07

警告

H315; H319; H335

2932209090

3

R36/37/38

S26-S36

Xi

品名, 成分含量, 用途

2932209090. 其他内酯. 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%

2932209090. other lactones. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

2932209090. Other Lactones