The molecule is a thiazolidinemonocarboxylic acid that is 1,3-thiazolidine substituted by geminal methyl groups at position 2 and a carboxy group at position 4 (the 4R stereoisomer). It derives from a hydride of a 1,3-thiazolidine.
(4R)-2,2-dimethyl-1,3-thiazolidine-4-carboxylic acid