Cas号77-76-9Beilstein635678分子式C5H12O2；H3CC(OCH3)2CH3；(CH3)2C(OCH3)2分子量104.15别名***缩二***外观Appearance无色透明液体纯度Purity≥99%(GC)水分Water<0.05%相对密度Specificgr***ity(20/20°C)0.8490-0.8520折光率Refractiveindexn20/D1.3760-1.3790)