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L-tryptophan Amino Acid

L-tryptophan Amino Acid
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Product Details

L-threonine is an essential amino acid that is added to the diet of pigs and poultry in order to exactly match the balanced amino acid requirement of the animals. In practice, L-Threonine is the second limiting amino acid for pigs and the third for poultry. Even in the low protein diets with such balanced L-Threonine content, L-Threonine can optimize growth performance and decrease the excretion of nitrogen. It is cost-effective and environment friendly.

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Product Introduction

Prodcut NameL-tryptophan
SynonymsL-alphs-Amino-3-indolepropionic acid
Cas No.73-22-3
Molecular FormulaC11H12N2O2
Molecular Weight204.23
AppearanceWhite crystals or crystalline powder
GradeFood&Beverage/Cosmetic/Pharmaceutical/Health supplement
Shelf Life2 Years


AppearanceWhite crystals or crystalline powderConforms
Specific Optical Rotation-26.0°~-29.0°-26.51°
Heavy Metal≤10PPM<7PPM
Other Amino AcidsChromatographically not detectableConforms
Loss On Drying≤0.50%0.25%
Residue On Ignition≤0.50%0.23%


1. L- tryptophan is an important nutrient
2. L- tryptophan takes part in the renewal of animal blood plasma protein in the body
3. L- tryptophan helps nicotinic acid and the synthesis of hemoglobin. It can significantly increase antibody in pregnant animals baby
4. L- tryptophan can promote lactation of cows and sows
5. L-tryptophan is used as control agent of pellagra

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1. Applied in food & beverage field

2. Applied in cosmetics field

3. Applied in health product field

4. Applied in pharmaceutical field

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Packaging & Delivery

1-5kgMore than 25kg
packed in an aluminum foil bag inside and paper carton outsidepacked in paper drum
Custom Design
Shelf LifeTwo years when properly stored
Storage: Stored in dry and cool place, keep away from strong light and heat

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Shipping Terms
By ExpressBy AirBy Sea

Suitable for under 50kg

Fast: 3-7 days

High cost

Door to door service

Easy to pick up the goods

Suitable for more than 50kg

Fast: 3-7 days

High cost

Port to port service

Professional broker needed

Suitable for more than 50kg

Fast: 3-7 days

Low cost

Port to port service

Professional broker needed

Contact us

Address: Room 810, Unit 1, Zhuque Seven-Star International Apartment, Zhuque Street,Yanta District, Xi'an, 710075

Tel: 0086-029-68750642/68750658

Fax: 0086-029-68750658



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