butanone phenylhydrazone, 2-Butanone,phenylhydrazone, 2-Butanone,2-phenylhydrazone, methyl ethyl ketone phenylhydrazone, 1-(butan-2-ylidene)-2-phenylhydrazine, metyl ethyl ketone phenylhydrazone, butan-2-one phenylhydrazone, Butan-2-on-phenylhydrazon, EINECS 214-452-3, ethyl methyl ketone phenylhydrazone