Propargyl chloride Structual molecular: HC≡C-CH2Cl CAS NO.: 624-65-7 Assay: 97%(min.) Appearance: colorless transparent liquid Solubility: It is insoluble in water,and soluble in benzene, dichloromethane, Application: It is a starting material for manufacturing brightening additives for nickel plating.As a propargyl precursor,it is widely used in all kinds of synthesis and pharmaceutica. In addition, it is a corrosion inhibitor and antirust.