L-Isoleucine is an α-amino acid involved in protein biosynthesis. It is a branched-chain, aliphatic amino acid commonly used as a nutritional supplement and flavoring agent.
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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L-serine zwitterion
nutritional supplement and flavoring agent
L-leucine zwitterion
nutritional supplement and flavoring agent
D(+)-Isoascorbic acid sodium salt
Antioxidant food preservative
L-arginine
nutritional supplement and dietary additive
Aldehydo-N-acetyl-D-glucosamine
personal care ingredient
N-nitrosoproline
Nitrosamine reference standard
D-alloisoleucine
research compound
The international HS code for L-isoleucine (CAS 73-32-5) 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.
(2S,3S)-2-amino-3-methylpentanoic acid
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Sourcing L-isoleucine?
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