4H4N2; Molecular Weight:80.088; EINECS:206-027-6 ">

潘金莲被吸乳揉到高潮的视频,久久99久久99精品免观看,在电影院里拨开内裤挺进,护士交换粗吟配乱大交动态图

The physical and chemical property of 290-37-9 is provided by ChemNet.com
Chemical CAS Database with Global Chemical Suppliers - ChemNet


   ChemNet > CAS > 290-37-9 pyrazine

290-37-9 pyrazine

product Name pyrazine
CAS No 290-37-9
Synonyms 1,4-Diazine
Molecular Formula C4H4N2
Molecular Weight 80.088
InChI InChI=1/C4H4N2/c1-2-6-4-3-5-1/h1-4H
EINECS 206-027-6
Molecular Structure 290-37-9 pyrazine
Density 1.055g/cm3
Melting point 52-56℃
Boiling point 118.6°C at 760 mmHg
Refractive index 1.503
Flash point 55.6°C
Water solubility SOLUBLE
Vapour Pressur 19.7mmHg at 25°C
Hazard Symbols  F:Flammable;
 Xi:Irritant;
Risk Codes R11:;
R36/37/38:;
Safety Description S16:;
S26:;
S36:;
MSDS Material Safety Data Sheet
主站蜘蛛池模板: 平泉县| 丁青县| 哈尔滨市| 南宫市| 阳城县| 衡山县| 星座| 平乡县| 渝中区| 镇宁| 合肥市| 安远县| 昆明市| 阳江市| 兴城市| 辽源市| 荆门市| 呼伦贝尔市| 宝坻区| 枣庄市| 富顺县| 齐齐哈尔市| 班戈县| 青田县| 兖州市| 郑州市| 辛集市| 同江市| 沅江市| 合川市| 大名县| 玉溪市| 长春市| 松溪县| 武山县| 鲁山县| 涟源市| 梁平县| 凌海市| 贵港市| 乐至县|