次亜 じあ塩素 えんそ さん しおではありませんでした
jiaensosanshiodewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 次亜塩素酸塩

1. Was not sodium hypochlorite.; Was not a hypochlorite.

Past/Perfective
Negative
Polite
Formal Register