(chemistry) A yellow crystalline substance, analogous to sulphocyanic acid, but containing more sulphur.

(organic chemistry, obsolete) An acid of the oleic acid series, said to occur in mustard oil.

(organic chemistry) An acid found in the lichen Parmelia parietina.

(organic chemistry) An organic acid metameric with malic acid.

(biochemistry) An acid obtained from bile.

(chemistry) hydrogen sulfide when considered as an acid (e.g., in solution)

(organic chemistry) An oily substance obtained from the doegling, resembling oleic acid.

(chemistry) A certain highly oxidized compound of chromium, with a deep blue colour, and produced by the action of hydrogen peroxide.

(chemistry, obsolete) ethylsulphuric acid

Alternative form of margaric acid