ピロカテキンMeanings1nounpyrocatechin; pyrocatecholchemistryA chemical compound; used in chemistry contexts. Also known as catechol.ピロカテキンは、カテコールとも呼よばれる有ゆう機き化か合ごう物ぶつです。Pyrocatechin is an organic compound also called catechol.