[Product Name]: L-Tryptophan Feed Grade [AA0003]

[Chemical Formula]: C4H9NO3

[CAS]: 73-22-3


[Product Performance]: 

L-Tryptophan is an essential amino acid produced especially for piglets, sows and poultry although it is also beneficial for other animals. It is regarded as one of the four limiting amino acids in animal diets, which means it cannot be synthesized internally; however, the dietary supply of L-Tryptophan included in commercial feeds is commonly inadequate. An L-Tryptophan deficiency is generally characterized by decreased feed intake, digestive inefficiency, and slow growth rates. Since L-Tryptophan plays a critical role in growth performance and feed efficiency, the addition of L-Tryptophan to commercial feeds is recommended in order to achieve an optimal amino acid balance and as a means to fulfill animals’ digestible tryptophan requirements.


[Certificate of Analysis]:

Testing Item Standard Result
Appearance White to Light Yellow Crystal Powder Conforms
Assay/% ≥98.00 99.10
Specific Rotation -29.0~32.8 -29.3
Residue on Ignition/% ≤0.50 0.40
Loss on Drying/% ≤0.50 0.30
Heavy Metal (Pb)/% ≤5 <5
Arsenic (As)/% ≤2 Conforms
Mercury (Hg)/% ≤0.1 Conforms
Cadmium (Cd)/% ≤2 Conforms
Salmonella Negative in 10g Conforms
PH 5.0~7.0 Conforms


[Storage]: Store in a climate controlled, insulated, dry, and ventilated location. Avoid moisture at all times. Please handle carefully to prevent container damage and be sure to stockpile in a location that does not contain toxic substances.

[Packing]: 20kg kraft paper bag or net 20kg in woven polypropylene bags with PE-liners

[Loading]: 10~12mt/20FCL’ ; 10~12mt/20FCL’ with pallets

[Shelf Life]: Two years (when properly stored)


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