[S,(-)]-2-Ethyl-3-methylbutyraldehyde 2,4-dinitrophenylhydrazone
[S,(-)]-2-Ethyl-3-methylbutyraldehyde 2,4-dinitrophenylhydrazone ??
??
[S,(-)]-2-Ethyl-3-methylbutyraldehyde 2,4-dinitrophenylhydrazone C??? ??, ??, ??
[S,(-)]-2-Ethyl-3-methylbutyraldehyde 2,4-dinitrophenylhydrazone ?? ?? ? ???
???
?? ??
[S,(-)]-2-Ethyl-3-methylbutyraldehyde 2,4-dinitrophenylhydrazone ?? ??
???( 0)?? ??