2'-Chloro-3',6'-diethoxy-α-(2,3-diethoxyphenylazo)acetoacetanilide
2'-Chloro-3',6'-diethoxy-α-(2,3-diethoxyphenylazo)acetoacetanilide ??
??
2'-Chloro-3',6'-diethoxy-α-(2,3-diethoxyphenylazo)acetoacetanilide C??? ??, ??, ??
2'-Chloro-3',6'-diethoxy-α-(2,3-diethoxyphenylazo)acetoacetanilide ?? ?? ? ???
???
?? ??
2'-Chloro-3',6'-diethoxy-α-(2,3-diethoxyphenylazo)acetoacetanilide ?? ??
???( 0)?? ??
