Cas号89-98-5Beilstein385877分子式C7H5ClO；ClC6H4CHO分子量140.57别名2-氯***外观Appearance无色透明至浅***液体纯度Purity>99.5%(GC)相对密度Specificgr***ity(20/20°C)1.2510-1.2530折光率Refractiveindexn20/D1.5652-1.5676游离酸Freeacid<1%(aschlorobenzoicacid))