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Quick Details

  • CAS No.: 153-94-6
  • Other Names: D-Tryptophan
  • MF: C11H12N2O2
  • EINECS No.: 205-819-9
  • Place of Origin: China (Mainland)
  • Type: Vitamins, Amino Acids and Coenzymes
  • Grade Standard: Feed Grade, Food Grade
  • Usage: Animal Pharmaceuticals
  • Brand Name: Synchem
  • Model Number: USP grade L-tryptophan
  • Purity: 99-101% L-tryptophan
  • Specific Optical Rotation: -29.5°~-33.0°
  • Character: White to light yellow crystal or crystal powder
  • Loss on Drying: 0.5% max
  • Residue on Ignition: 0.5% max
  • Heavy Metal(Pb): 20mg/kg max
  • Arsenic: 2mg/kg max
  • Assay(on dry material): 98.5% min
  • Packaging: 20kg carton/10kg bag/300kg bag

Packaging & Delivery

Packaging Details 25kg per carton,7.2mt in one 20'FCL.
300kg big bag, 6mt in one 20'Fcl.
or meet the customer's requirement.
Delivery Time 20 days after PO.

 Wholesale 98% Feed Grade L-tryptophan

Product Description



 Molecular Weight204.23
SPECIFICATIONSCharacterWhite to light yellow crystal or crystal powder
 Specific Optical Rotation-29.5°~-33.0°
 Loss On Drying0.5% max
 Residue On Ignition0.5% max
 Heavy Metal (Pb)≤20mg/kg
 Assay(on dry material)98.5% min
NUTRITIONAL VALUEL- TryptophanNo less than 98.5%
PACKAGING20kg per carton with P.E inner bag


kept in a light-proof,well-colsed,dry and cool place.

Service we can provide:

1. Mixed container, we can mix different amino acids in one container.

2. Quality control, before shipment, free sample for test. after shipment,  keep sample for 3 years

3. Prompt shipment with professional documents

4. Packing as your request, with photo before shipment

Packaging & Shipping

Scientific logistics guarantee the transport safely and low cost


Our Warehouse:

Modern warehouse management 


Company Information

 Own Lab: 

Use Advanced equipment to control the quality strict


Global Exhibition: 


Our customer




Trading Process

Synchem International-Your Reliable Partner

1. We have the best knowledge because we have over 15 years experiences in Vitamins, Biocides & Specialities,all intermediats for Pharma and Argochemcial industry fields. 

2. We can get full support from our suppliers in China on price and suppliability. 

3. We can give financial support to you. 

4. We have professional logistics and warehouse at many ports.


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China (Mainland) | Trading Company
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Supplier's Trade Assurance Limit: US $30,000
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