Description
 Tryptophan is an essential amino acid in the human diet. Its functions as a serotonin precursor have increased interest in its ability to treat depression and epilepsy; however, there has been inconclusive evidence in clinical trials regarding its efficacy in humans. Safety has also been a concern. 
  It is widely used in molecular genetics as an auxotrophic genetic marker in yeast gene disruption experiments. 
  
 Product Specifications 
 L-Tryptophan 
  MOLECULAR BIOLOGY GRADE 
  Formula: C11H12N2O2 
  MW: 204.23 g/mol 
  Color/Purity: White to light  yellow crystalline powder. Forms a colorless or nearly colorless solution when dissolved 1% in 1M HCl or water. 
  Storage/Handling:  Protect from light. 
 PubChem Chemical ID: 6305