title: Separation of 4-N,N-dimethylaminoazobenzene-4'-thiohydantoins of amino acids by thin-layer chromatography on silica gel.
mesh_terms: D000596:Amino Acids / Q000302:isolation & purification*; D002855:Chromatography, Thin Layer; D008722:Methods; D013861:Thiocyanates; D013867:Thiohydantoins / Q000138:chemical synthesis / Q000302:isolation & purification; D004124:p-Dimethylaminoazobenzene / Q000031:analogs & derivatives*
chemical_list: D000596:Amino Acids; D013861:Thiocyanates; D013867:Thiohydantoins; D004124:p-Dimethylaminoazobenzene