Qingdao Fraken International Trading Co., Ltd.
Main products:Health food/OEM Tablet/Softgel/Capsule,Vitamin C Tablet,Glucosamine Chondroitin MSM Tablet,Calcium + Vit D3 Tablet,Spirulina/Chlorella
Products
Contact Us
  • Contact Person : Ms. Wang Helen
  • Company Name : Qingdao Fraken International Trading Co., Ltd.
  • Tel : 86-532-83899718
  • Fax : 86-532-83623236
  • Address : Shandong,Qingdao,Room 1005, 220 Yan'an Three Road
  • Country/Region : China
  • Zip : 266024

High quality DL-tryptophan

High quality DL-tryptophan
Product Detailed
.DL-Tryptophan CAS# :54-12-6 Assay:99% Molecular formula:C11H12N2O2 Molecular weight:204.23

DL-Tryptophan CAS# :54-12-6 Assay:99% Molecular formula:C11H12N2O2 Molecular weight:204.23

  

Manufacture standard

AJI97

Transmittance

≥95.0%

Chloride

≤0.020%

Ammonium

≤0.02%

Sulfate

≤0.020%

Iron

≤30ppm

Heavy metals

≤10ppm

Arsenic

≤1ppm

Other amino acids

Chromatographically not detectable

Loss on drying

≤0.20%

Residue on ignition

≤0.10%

Chemical name

2-Amino-3,3'-Indolylpropanoic Acid

Molecular formula

C11H12N2O2

Molecular weight

204.23

Assay

98.0~101.0%

PH

5.5~7.0

High quality DL-tryptophan



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