Appearance: White crystalline powder

CAS No.:153-94-6

EINECS:  205-819-9

Test Method:HPLCParticle Size: 100% pass 80 mesh

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Product Details

标签 Products Description.jpg

If you are looking for best organic, 100% pure, from GMP factory, or if you are looking for China l-tryptophan, l tryptophan solubility manufacturers, please feel free to contact Nutragreenlife Biotechnology, we are always able to offer you high-quality  at good price. Welcome to wholesale products from us.


Product Name



White crystalline powder



Molecuar Weight




Molecualr Formula


Shelf Life

2 years

Test Method


Melting Point


Particle Size

100% pass 80 mesh




标签 Application.jpg

L-tryptophan is an essential amino acid and it continues to be used as a nutritional. It experts positive effects on the growth promotion and the repair of histiocyte. It offers alimentation for organism to enhance the immune capacity, and adjust secretion of enzymes and hormones of the organism. It is also used to transport other nutriments and for detoxification.

Considering playing a key role in growth performance and feed efficiency, It is recommended to add in diet to achieve the optimal amino acid balance and fulfill the digestible requirement of animals, especially piglets, sows and poultry etc.


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25kg/Fiber Drum (35 cm* 53 cm), Double plastic bag inside;

1Kg/Aluminum foil bag, with single plastic inside, and carton outside;

And other package, or as your requirements.



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Delivery: Sea/ Air Shipping & International Express  

Shipping Time: 2-3 working days after payment  

Storage: Kept away from strong light and heat.                                                                                    

Shelf Life: 24 months


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Q1: Are you manufacturer or trading company ?

A:We are trader with ISO22000,Kosher,Halal,HACCP certified over 10 years.


Q2:How can we guarantee you receive a good quality ?

A: Our own factory comply to GMP standard and run with strict quality control,every batch of the product must be tested and ensure the quality before shipment.


Q3: What’s the delivery and shipping of L-tryptophan?

A:For sample,around 1-3days to be sent out upon receipt of payment by


For small order, please expect 3-7days by DHL. FedEx,TNT,UPS EMS or SF.

For bulk order, around 2 weeks to finish production from order confirmation,will be delivered by air or sea as customer requested.


Q4: Can I get some sample to test the quality?

A: Of course you can, a 20g-30g free sample is available for you to test.


Q5: What’s the payment?

A: We accept T/T,L/C,D/A,D/P,Western Union,Paypal.


Q6:What is your package and storage?

A:25kg per paper drum with double layer poly bag inside.

Store in cool and dry place, keep away from strong light and heat.


Q7:What is your return service policy?

A: We offer a 45days guarantee on receipt of goods without any damage to packing. We will return your money if our products don’t conform to your approved quality.

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