メチルホスホン酸さんMeanings1nounmethylphosphonic acid; methylphosphonateTechnical term in organic chemistry; refers to the acid or its conjugate base/ester depending on context.メチルホスホン酸さんは有ゆう機きリン化か合ごう物ぶつの一いっ種しゅです。Methylphosphonic acid is a type of organophosphorus compound.