ピロメリト酸さんMeanings1nounpyromellitic acidchemistryA specific chemical compound; used in organic chemistry contexts.ピロメリト酸さんはベンゼン環かんに四よっつのカルボキシル基きが結けつ合ごうした化か合ごう物ぶつです。Pyromellitic acid is a compound in which four carboxyl groups are bonded to a benzene ring.