My company specializes in the manufacture of fine chemicals.

Chemotransmitters play an important role in the transmission of information between nerve cells.

Stoichiometry is a method for calculating the amount of substances in a chemical reaction.

No chemical flavoring is used in this ramen at all.

Please tell me the International Standard Book Number of this book.

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

This music is flowing with a pleasant ⠐⠫ along with a beautiful melody.