Monomethyl succinate (Mono-Methyl Succinate) is a white crystal under normal temperature, with a fusing point of 56 ℃~ 59 ℃ and a boiling point of 151 ℃; it is dissolved in organic solvents such as alcohol, ether, and benzene, and water-insoluble. Monomethyl succinate is the intermediate of organic synthesis and pharmaceutical synthesis, is also the substrate material producing color candles, and has advantages such as burning is smokeless and odorless. The preparation method is that succinic acid, Succinic anhydried, and methyl alcohol single-esterification produce monomethyl succinate.