(organic chemistry) An acid, CH₂O₂(CO₂H)₂, obtained from amido malonic acid.

(organic chemistry) An acid extracted from madder root; a yellow crystalline substance from which alizarin is obtained.

(obsolete, organic chemistry) sulphocyanic acid; an acid that forms a red colour with ferric salts.

plural of rhodanic acid

(organic chemistry) An acid derived from the yellow jasmine (Gelsemium sempervirens) and resembling esculin.

(organic chemistry) A nitrogenous acid of osmium, H₂N₂Os₂O₅, forming a well-known series of yellow salts.

plural of conjugate acid

plural of iminoacetic acid

(chemistry, obsolete) ruberythrinic acid

(organic chemistry) A complex acid, C₇H₈O₄, obtained as a white crystalline substance by a modified oxidation of terebic acid.