脂環 しかん しき化合 かごう ものじゃなかったです
shikan shiki kagōmonojanakattadesu

Noun
Desu Copula

The polite, past negative form of 脂環式化合物

1. Was not a steroid.; Was not a steroidal compound.

Past/Perfective
Negative
Polite
Casual Register