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L-Tryptophan

L-Tryptophan
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FOB Price: 11.00 USD/kg  
Product Type: Amino acids 
Port: qingdao/tianjin 
Minimum Order Quantity: 25 kg 
Supply Ability: 100 kg
Place Of Origin:
Delivery Time: 7 days
Expiry Date: long-term effectiveness
Last Update: 2018-11-26
Views: 0
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Product Details
 
 

introduction

Property: White  to yellowish crystalline powder, smell-less or slight smelly, L- type has the bitter taste, theDL- and the D- type have little sweet taste. 289 °C decompounds,slightly soluble in water, does not dissolve in the ethyl alcohol;

 

Appearance: White  to yellowish crystalline powder

Cas No.:73-22-3

EINECS No.:200-795-6

Molecular Formula:C11H12N2O2

Molecular Weight: 204.23

Specification:

 

Items

Standards

Appearance

White   crystals or crystalline powder

Assay

99%-100.5%

State   of solution

95.0%   Min

Specific   Rotation

-30.5~-32.5

Loss   on Drying

0.2%   Max

Ph

5.4-6.4

Chloride

0.02%   Max

Ammonium(NH4)

0.02%   Max

Iron

0.02%   Max

Sulfate

0.02%   Max

Residue   on ignition

0.1%   Max

Heavy   metals

0.001%   Max

Arsenic(As2O3)

0.0001%   Max

Other   Amino Acids

0.5%   Max

 

Storage Condition:Store in a cool and dry place and Keep away from strong light and heat

Package: 25kg/drum

Application:  Tryptophan is heterocyclic amino acid, is a kind of important and necessary amino acids for human body. It is widely applied in pharmaceutical and food fields .

 
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