(chemistry) An acid, C₄H₇N₃O₂, obtained by the action of cyanic acid vapour on cold aldehyde.

(organic chemistry) An acid obtained as a white amorphous deliquescent substance, C₈H₁₀O₁₁, that is a dimeric form of tartaric acid.

(chemistry, archaic) A hypothetical sulphacid of tungsten, analogous to sulphuric acid and known only in its salts.

Alternative form of morintannic acid

(chemistry) A complex nitrogenous acid of the alloxan group, obtained as a honey-yellow powder and forming gelatinous solutions.

(organic chemistry) An isomeric variety of lastic acid that breaks down into acrylic acid and water

(chemistry) A variety of tannic acid extracted as a yellow crystalline substance from fustic (Maclura tinctoria, formerly Morus tinctoria), Osage orange (Maclura pomifera), and from leaves of common guava (Psidium guajava).

(organic chemistry) Synonym of triacontanoic acid

fumaric acid

(chemistry) An acid obtained from the silkworm.