Compounds containing acyl groups play an important role in organic chemistry.

The allyl group plays an important role in organic chemistry.

Kihan is my best friend.

The Labor Standards Inspection Office (Rōdō Kijun Kantokusho), or 'Rōki' for short, plays a crucial role in protecting the rights of workers.

This organism has a very complex anlage in the early stages of development.

The history of the Empire of Japan is very interesting.

Please check the information of the resident's basic kana.

This compound contains a sulfhydryl group.

Compounds containing a benzyl group are often used in organic chemistry research.

His long talk is just like 'a hundred days of sermonizing without a fart.'