(chemistry) An amido acid related to lactic acid.

(organic chemistry) An organic acid obtained by reduction of mesoxalic acid.

(chemistry) ricinoleic acid

(chemistry) A sulphacid, H₂CSO₂, analogous to carbonic acid.

(organic chemistry) The trans isomer of oleic acid; the major trans fat found in hydrogenated vegetable oils, also occurring in small amounts in caprine and bovine milk.

(chemistry) An acid obtained by the oxidation of sycoceryl alcohol.

(chemistry, obsolete) pyrocatechol

(chemistry) An acid derived from maltose, also called gluconic acid or dextronic acid.

(chemistry, obsolete) fumaric acid

(chemistry, dated) cresol