(chemistry) A substance obtained by the action of nitric acid on aloes.

(chemistry) a stereoisomer of ascorbic acid that does not occur naturally

(chemistry) An acid, H₄As₂O₇ derived from arsenic acid analogously to pyrophosphoric acid.

(chemistry) An acid, H₄Sb₂O₇ derived from antimonic acid analogously to pyrophosphoric acid.

(organic chemistry) one of the isomeric dicarboxylic acids produced by the distillation of citric acid, or as metabolites by microorganisms, cis-CH₃-C(CO₂H)=CHCO₂H; the trans-isomer is mesaconic acid

(inorganic chemistry) The antimony analogue of phosphoric acid, H₃SbO₄

(chemistry) the hypothetical acid HNbO₃ derived from niobic oxide Nb₂O₅, only known as its salts, the niobates

(chemistry) one of the isomeric dicarboxylic acids produced by the distillation of citric acid, or as metabolites by microorganisms, CH₂=C(CO₂H)-CH₂CO₂H

(chemistry) one of the isomeric dicarboxylic acids produced by the distillation of citric acid, or as metabolites by microorganisms, trans-CH₃-C(CO₂H)=CHCO₂H; the cis-isomer is citraconic acid

(chemistry) A dark liquid, produced by the destructive distillation of wood, containing acetic acid, methanol, oils and tars; once used as a commercial source of acetic acid.