ChemNet > CAS > 91-64-5 Coumarin

91-64-5 Coumarin

produktnavn	Coumarin
Engelsk navn	Coumarin; 2H-1-Benzopyran-2-one; COUMARINE; 1-Benzopyran-2-one; 1,2-Benzopyrone; Chromen-2-one; O-Oxy-Cinnamic Lactone ; 2H-chromen-2-one
Molekyl?r Formel	C₉H₆O₂
Molekylvekt	146.1427
CAS-nummer	91-64-5
EINECS	202-086-7
Molecular Structure
Tetthet	1.248g/cm³
Smeltepunkt	68-71℃
Kokepunkt	298°C at 760 mmHg
Brytningsindeks	1.594
Flammepunktet	118.3°C
Vannl?selighet	1.7 g/L (20℃)
Damptrykk	0.0013mmHg at 25°C
Hazard symboler	Xn:Harmful;
Risiko Koder	R20/21/22:; R36/37/38:; R40:;
Sikkerhet Beskrivelse	S26:; S36/37:;

Chemicals Suppliers(61):: 1Smart Chemicals Group Co. Ltd.; 2Shanghai Maochang Chemical Co., Ltd.; 3Shanghai Dynamic Industrial Co., Ltd.; 4Wenzhou Chemical Material Factory; 5Jiaxing Sunlong Industrial & Trade Co., Ltd.; 6AFINE CHEMICALS LIMITED; 7Xiamen Synress Import and Export Co.,Ltd; 8Shaanxi Hanjiang Pharmaceutical Group Co., Ltd.; 9Shanghai Domen International Co., Ltd; 10Hangzhou Shuyuan Pharmaceutical Technology Co., Ltd.; Contact Suppliers; Post Buying Leads; Related selling offers

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