Identification by NMR and MS of the by-products formed during the synthesis of the red vat dye 1,1'-diethyl-(3,3'-bianthra[1,9-c,d]pyrazole)-6,6'(1H,1'H)-dione
Titel:
Identification by NMR and MS of the by-products formed during the synthesis of the red vat dye 1,1'-diethyl-(3,3'-bianthra[1,9-c,d]pyrazole)-6,6'(1H,1'H)-dione
Auteur:
Havlíčková, Libuše Koloničný, Alois Lyčka, Antonín Jirman, Josef Kolb, Ivan