The 2-(Carbomethoxy)-3-tropinone, with the CAS registry number 36127-17-0, is also known as 2-Tropanecarboxylic acid, 3-oxo-, methyl ester (6CI). This chemical's molecular formula is C10H10N2O4S and molecular weight is 197.23. What's more, its systematic name is Methyl 8-methyl-3-oxo-8-azabicyclo[3.2.1]octane-2-carboxylate.

2-Carbomethoxytropinone (2-CMT) is a commonly used organic intermediate in the synthesis and its analogues. As of at least 1999 no reaction pathway has been discovered that synthesizes like compounds without utilizing the reduction of 2-CMT. The structure of was discovered by Richard Willstätter in 1898 after he synthesized it from 2-carbomethoxytropinone.Although it was originally believed that 2-CMT in nature was ultimately derived from ornithine and acetic acid, subsequent research has indicated other pathways exist for the biosynthesis of 2-CMT. A β-keto ester, 2-CMT exists in equilibrium with its keto-enol tautomer.