Safety Reference
Warning
H302Harmful if swallowed
H319Causes serious eye irritation
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(2S)-4-Oxo-1,2-pyrrolidinedicarboxylic acid 1,2-bis(1,1-dimethylethyl) ester
pharmaceutical intermediate
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This compound is a proline derivative used as a pharmaceutical intermediate in the manufacturing of teneligliptin.
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
The international HS code for (2S)-1-(tert-butoxycarbonyl)-4-oxopyrrolidine-2-carboxylic acid (CAS 84348-37-8) is 2933.99.
2933.99
2933 99 80
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
(2S)-1-[(2-methylpropan-2-yl)oxycarbonyl]-4-oxopyrrolidine-2-carboxylic acid
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CC(C)(C)OC(=O)N1CC(=O)C[C@H]1C(=O)O