DL-Leucine is a stereoisomeric mixture of the amino acid leucine, commonly used as a pharmaceutical intermediate. Its primary significance lies in its role as a building block for peptide synthesis in research and manufacturing.
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.
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4-Trifluoromethylsalicylic acid
pharmaceutical intermediate
2,5-Bis(trifluoromethyl)aniline
pharmaceutical intermediate
Methyl 4-chloroacetoacetate
pharmaceutical intermediate
(4R)-N-(tert-Butyloxycarbonyl)-4-(cyanomethyl)-L-glutamic Acid 1,5-Dimethyl Ester
pharmaceutical intermediate
L-leucine zwitterion
nutritional supplement and flavoring agent
L-Leucine-5,5,5-d3
research compound
L-LEUCINE-D7
research compound
Deuterated L-leucine
research compound
The international HS code for DL-Leucine (CAS 328-39-2) is 2922.49.
2922.49
2922 49 85
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
2-amino-4-methylpentanoic acid
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