Oxaloacetic acid.

Mecoprop, a common herbicide.

Alternative spelling of methanesulfonic acid

A yellow liquid obtainable from the shell of the cashew nut (Anacardium occidentale), closely related to urushiol, and also causing itchiness like urushiol.

(slang) to take LSD.

(organic chemistry) Diethylene triamine pentaacetic acid (DTPA), a polyamino carboxylic acid consisting of a diethylenetriamine backbone modified with five carboxymethyl groups, used as a chelating agent to treat radioactive contamination.

peracetic acid

(organic chemistry) The carboxylic acid, benzene-1,3,5-tricarboxylic acid, obtained by oxidation of mesitylene

Succinic acid.

(organic chemistry) A hexacarboxylic acid, benzene hexacarboxylic acid, first discovered in the mineral mellite, which is its aluminium salt.