EINECS: 227-232-7 Usage: 3,4-Dichloro-1,2,5-thiadiazole is a chlorinated thiadiazole that is a potent inhibitors of nitrification in soil. 3,4-Dichloro-1,2,5-thiadiazole is used as a building block in the preparaton of the β-adrenergic blocking agent, Timolol (T443700). Vapour Pressur : Density: 1.648 Melting Point: 82-83 °C Boiling Point: 158°C Flash Point: >100°C Packing: fluorinated bottle,25kg drum,200kg drum