HOOCCHOH4COOH
HOOCCHOH4COOH is not a standard common or IUPAC name for a single well-defined compound. As written, it resembles a condensed or informal representation of a four‑carbon hydroxy diacid, but the exact connectivity is ambiguous without explicit structural notation. A widely known molecule that fits a four‑carbon hydroxy diacid pattern is malic acid, which has the structure HOOC-CHOH-CH2-COOH.
Malic acid is an alpha-hydroxy dicarboxylic acid and a natural metabolite in many fruits. It contains one
In practical terms, malic acid is used as a food acidity regulator (often labeled as E296) and
See also: malic acid, tartronic acid, tartaric acid, citric acid.