L-tryptophan

• Post Date:

  Jun 20,2016

• Expiry Date:

  Jun 20,2017

• Detailed Description:

  Cas No. :73-22-3 Quantity: 5000Metric Tons
  Specs:white to light yellow crystal or crystal powd
  Payment Method: T/T L/C
  L-tryptophan feed grade amino acid
  
  CAS NO.: 73-22-3
  
  
  
  Items
  
  
  Specification
  
  Appearance
  
  
  white to light yellow crystal or crystal powder
  
  Specific Optical Rotation
  
  
  -29.0°~-33.0°
  
  Loss on drying
  
  
  ≤0.5%
  
  Crude Ash
  
  
  ≤0.5%
  
  Heavy metals(Pb)
  
  
  ≤20 mg/kg
  
  Arsenic
  
  
  ≤2mg/kg
  
  Assay
  
  
  ≥98%

• CAS Registry Number:

  73-22-3

• Synonyms:

  ;H-Trp-OH;L-Tryptophane;L-Tryptohan;TRP;(S)-2-Amino-3-(3-indolyl)propionic acid;2-Amino-3-(1H-indol-3-yl)propanoic acid;Tryptophan;(S)-2-Amino-3-(1H-indol-3-yl)propanoic acid;L-alphs-Amino-3-indolepropionic acid; Indole-3-alanine;

• Molecular Formula:

  C₁₁H₁₂N₂O₂

• Molecular Weight:

  204.2252

• Molecular Structure:

  

• Risk Codes:

  R33:有累积作用的危险‖R40;
  

• Safety Description:

  S24/25:;
  

• Company:

  Hebei Zhousheng Biological Technology CO., LTD         

• Contact:

  elaine

• Tel:

  0311-86556681

• Fax:

  0311-86556687

• Email:

  elaine@zsbiological.com