1,3-Dimethyl-2-imidazolidinethione13461-16-0100 % similar 1,3-Dimethyl-2-imidazolidinone80-73-943 % similar Tetramethylthiourea2782-91-442 % similar 2-Chloro-1,3-dimethylimidazolidium tetrafluoroborate153433-26-233 % similar 1,3-Dimethyl-2-fluoroimidazolium hexafluorophosphate164298-27-533 % similar Dmpu7226-23-533 % similar N-Methyl-2-pyrrolidone872-50-432 % similar Dazomet533-74-431 % similar 3-Methyl-2-oxazolidinone19836-78-331 % similar Sarcosine anhydride5076-82-430 % similar