D-Tryptophan

D-Tryptophan

D-Tryptophan

Min.Order / FOB Price:Get Latest Price

1 Kilogram

FOB Price:USD 66.0000 -67.0000
  • Min.Order :1 Kilogram
  • Purity: 99%
  • Payment Terms : L/C,D/A,D/P,T/T,,MoneyGram,Other

Keywords

D-Tryptophan tadalafil intermediate D(+)-Tryptophan

Quick Details

  • Appearance:white crystalline or amorphous powder
  • Application:food industry, pharmaceutical and cosmetics, health products
  • PackAge:25KG/Drum
  • ProductionCapacity:50|Metric Ton|Month
  • Storage:Store in tight containers at controlled room temperature
  • Transportation:common goods, by see, by air, in tight container

Superiority:

Enzymatic technology, lowest cost, high quality.

Enzymes with excellent catalytic performance,  efficient, eco-friendly, and safe solutions for food industry, pharmaceutical and cosmetics, health products industries.

we contribute to a green and safe environment; we continuous seeking innovations and breakthroughs; and we build professional, reliable and long-lasting partnerships with customers all over the world.

Shanghai AngewChem Co., Ltd. is an innovative enterprise on fine

chemicals and pharmaceuticals. Based on Shanghai R&Dcenter and 

Hunan chemical manufacturing plant, we offer chemical research, 

process development, and largescale production. Complete and effective

quality control system was established, and the products are exported 

to Europe, America, Asia, Africa and Australia.

 

     AngewChem R&D team came from SHU and SIT, also supported by 

professional teams in other universities. Our team is composed by several 

research leaders with global experiences and more than 10 doctoral senior

scientists

Details:

Appearance
White or almost white crystalline
or amorphous powder
Conforms Visual observation
Identification
HPLC retention time correspond
to WRS under Related Substances
item
Conforms HPLC
20
D Specific rotation [?] +30.5~+32.5°(C1 in water) +31.89° USP<781>
Loss on drying ≤0.50% 0.12% USP<731>
Residue on Ignition ≤0.10% 0.04% USP<281>
pH 5.4~6.4 5.88 USP<791>
Chloride(Cl) ≤0.02% ＜0.02% USP<221>
Ammonium(NH4) ≤0.02% ＜0.02% In house
Sulfate(SO4) ≤0.02% ＜0.02% USP<221>
Iron(Fe) ≤20ppm ＜20ppm USP<241>
Heavy metals(Pb) ≤10ppm ＜10ppm USP<231>
Isomer purity ≤0.2% Not detected HPLC
Related Substances
Purity≥98.5%
Single impurity≤0.5%
Total impurities≤1.5%
99.93%
0.04%
0.07%
HPLC
Assay 99.0~101.0% 100.02% Titration

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