methanoic acid; formic acid
Chemical term for the simplest carboxylic acid, HCOOH. Commonly known as 蟻酸 (ぎさん) in Japanese, but メタン酸 is the systematic IUPAC name.
Methanoic acid is the simplest carboxylic acid.
An aqueous solution of methanoic acid is also called formic acid.
Compound of メタン (methane) and 酸 (acid), following the IUPAC nomenclature pattern for carboxylic acids.