The molecular formula of L-Tryptophane: C11H12N2O2. It is crystal or crystalline powder from white to yellowish white.

Basic information

Chinese name: L-Tryptophane
English alias:H-Trp-OH; L-Tryptophane; L-Tryptohan,99%; 2,4,5,6-Tetrachloropyrimidine; TRP; (S)-2-Amino-3-(3-indolyl)propionic acid; 2-Amino-3-(1H-indol-3-yl) propanoic acid
CAS:73-22-3 EINECS:200-795-6


Human: nutritional supplement, antioxidant. Tryptophane is the precursor of 5-hydroxytryptamine which is an important neurotransmitter of human body; it is also one of human essential amino acids; it is applied in nutrition supplements for pregnant woman and infant specific milk power; it is used as a curative of aniacinosis (pellagra); it‘s used as a tranquilizer to adjust energetic rhythm and improve sleeping.
Animal: it’s used to improve animal food ingestion, weaken stress reaction, improve animal sleeping, increase antibody of fetus and young animal and improve milk secretion of milk yielding animals; it’s also can be used to reduce high quality protein dosage in daily ration, reduce feed cost, protein feed consumption of daily ration and save formula space.


1.Storage conditions: stored in airtight, lucifugal conditions and placed in ventilated, shady and cool, dry place free of contaminant and toxic harmful articles;
2.Storage life: original package product can be stored for two years under specified storage conditions.