N‑Acetyl‑L‑Tryptophan Powder

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N‑Acetyl‑L‑Tryptophan of Basic Identifiers
CAS Number: 1218‑34‑4
Molecular Formula: C₁₃H₁₄N₂O₃
Molecular Weight: 246.26 g/mol
Synonyms: Ac‑Trp‑OH, N‑α‑Acetyl‑L‑tryptophan
Structure: Acetylated derivative of L‑tryptophan; contains indole ring, acetamide group, and carboxyl group.
Key Specifications (Industrial/Pharma Grade)
Purity: ≥98.5% (HPLC)
Optical Purity: ≥99.0% ( chiral HPLC)
Loss on Drying: ≤0.5%
Residue on Ignition: ≤0.1%
Heavy Metals: ≤10 ppm (Pb, As, Cd)
Related Substances: ≤1.0% (total impurities)
N‑Acetyl‑L‑tryptophan is a white, stable, moderately lipophilic crystalline powder with high chiral purity. It is soluble in organic solvents but slightly soluble in water, with a acidic pKa (~3.65). Chemically, it undergoes deacetylation, indole oxidation, and esterification, and is stable under ambient conditions.

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