Cas号102-52-3Beilstein1700020分子式C7H16O4；(CH3O)2CHCH2CH(OCH3)2分子量164.20别名丙二醛二甲缩醛外观Appearance无色透明至浅***液体红外光谱鉴定Infraredspectrometry和对照品匹配纯度Purity（GC)≥98.0%折光率Refractiveindex1.4060-1.4090比重Specificgr***ity(20/20)0.9930-0.9970)