Chlormethine51-75-232 % similar 2-Chloro-1-(1-piperidinyl)ethanone1440-60-431 % similar 5-Chlorovaleryl chloride1575-61-731 % similar 2-Chloroethyl chlorocarbonate627-11-231 % similar 1-(2-Chloroethyl)piperidine1932-03-231 % similar N,N-Diphenylcarbamic chloride83-01-230 % similar