Specification :

Product Name : L-Tryptophan
Chemical Formular: C11H12N2O2
Molecular Weight: 204.23
CAS No.: 73-22-3
H.S Code : 29224910.90
Specifications:
Appearance: White to yellow crystalline powder
Assay: 98.5% to 101.0%
Specific Rotation: -30.0° to -33.0°
Loss on Drying: d0.2%
Residue on Ignition: d0.1%
Heavy metals ( as Pb) : d0.001%
Arsenic: d0.0001%
Standard: EP6, USP31, AJI97, FCC4
Application
L-Tryptophan is one of essential amino acids in human diet; it’ s needed for normal growth in infants and for nitrogen balance in adults. The body uses tryptophan to help make niacin and serotonin. Serotonin is thought to produce healthy sleep and a stable mood.