1,3-Dimethyl-2-imidazolidinone CAS 80-73-9, also known as dimethyl ethylene urea, referred to as 1,3-dimethyl-2-imidazolidinone, is a polar solvent with high boiling point, High flash point, low melting point, very low toxicity, very low pollution and strong solubility, it has strong stability, strong acid, strong alkali resistance, water resistance, light resistance, oxygen resistance.
3,6-Dichloropyridazine CAS 141-30-0 is obtained by ring expansion and chlorination of maleic anhydride.