塩基 えんき せい染料 せんりょうではありませんでした
enki sei senryōdewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 塩基性染料

1. Was not a basic dye.; Was not an alkaline dye.

Past/Perfective
Negative
Polite
Formal Register