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 4281-40-7 is provided by ChemNet.com
Chemical CAS Database with Global Chemical Suppliers - ChemNet


   ChemNet > CAS > 4281-40-7 6,7-dimethoxy-4-methylcoumarin

4281-40-7 6,7-dimethoxy-4-methylcoumarin

??? ????? 6,7-dimethoxy-4-methylcoumarin
??? ??????? 6,7-dimethoxy-4-methylcoumarin;6,7-Dimethoxy-4-methylcoumarin; 4-Methyl-6,7-dimethoxycoumarin; NSC 688797; 2H-1-Benzopyran-2-one, 6,7-dimethoxy-4-methyl-; 6,7-dimethoxy-4-methyl-2H-chromen-2-one
????? ???????? C12H12O4
??? ??????? 220.2213
InChI InChI=1/C12H12O4/c1-7-4-12(13)16-9-6-11(15-3)10(14-2)5-8(7)9/h4-6H,1-3H3
????? ?????? 4281-40-7
?????? ??????? 4281-40-7 6,7-dimethoxy-4-methylcoumarin
????? 1.202g/cm3
???? ??? 136-139℃
???? ????? 374.5°C at 760 mmHg
???? ???? 1.544
???? ?????? 168.2°C
???? ???? 8.34E-06mmHg at 25°C
主站蜘蛛池模板: 贺兰县| 隆林| 阿克苏市| 修武县| 元朗区| 泰州市| 邢台县| 沂南县| 治县。| 即墨市| 嘉善县| 永定县| 西吉县| 循化| 桑日县| 全椒县| 滨州市| 于田县| 奉节县| 宜宾县| 达日县| 五莲县| 阳信县| 修水县| 商丘市| 甘泉县| 灵武市| 珠海市| 温宿县| 勃利县| 军事| 安福县| 呈贡县| 故城县| 朔州市| 徐水县| 济源市| 清水县| 和顺县| 酒泉市| 班玛县|