L-proline is a proteinogenic amino acid used in the biosynthesis of proteins, characterized by its secondary amine structure and pyrrolidine ring. It is commonly employed as a dietary supplement and nutrient.
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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(+)-pipecolic acid
research compound
(-)-pipecolic acid
research compound
2-azetidinecarboxylic acid
pharmaceutical intermediate
Biotin
dietary supplement and nutrient
Choline bitartrate
dietary supplement and nutrient
Magnesium glycinate
dietary supplement ingredient
BETA-TOCOPHEROL
vitamin E food component
Erythritol
non-nutritive sweetener and humectant
The international HS code for L-proline (CAS 147-85-3) 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)-pyrrolidine-2-carboxylic acid
ONIBWKKTOPOVIA-BYPYZUCNSA-N
C1C[C@H](NC1)C(=O)O
Sourcing L-proline?
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