Cas号75-09-2Beilstein1730800分子式CH2Cl2分子量84.93别名甲叉二氯,氯化次甲基,亚甲基二氯,***,***含量（CH2Cl2）Assay,%≥99.9色度，黑曾单位Color≤10密度(20℃)Density,g/mL1.320-1.330蒸发残渣Evaporationresidue,%≤0.002酸度（以H+计）Acidity,mmol/100mg≤0.002游离氯（Cl)Freechlorine,%≤0.0001铁(Fe)Iron,%≤0.0001水分（H2O）Water,%≤0.05)