Sourcing L-Tryptophan methyl ester?
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9,10-Dioxo Ketotifen
pharmaceutical intermediate
Sourcing L-Tryptophan methyl ester?
Post a free purchase request — no account needed. It reaches suppliers of this product, and replies go straight to your inbox.
L-Tryptophan methyl ester is an amino acid ester derivative used as an intermediate in pharmaceutical manufacturing. It is commonly employed in peptide synthesis and related research applications.
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 L-Tryptophan methyl ester (CAS 4299-70-1) 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.
methyl (2S)-2-amino-3-(1H-indol-3-yl)propanoate
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