86873-09-8 Glycine, N-ethyl-, (1,2-dihydro-2-oxo-3H-indol-3-ylidene)hydrazide, monohydrochloride, (Z)- Glycine, N-ethyl-, (2-oxo-3-indolinylidene)hydrazide, hydrochloride, (Z)- N-Ethylglycine cis-(2-oxo-3-indolinylidene)hydrazide hydrochloride