D-Tryptophan
1. D-Tryptophan is an essential amino acid and it continues to be used as a nutritional.
2. D-Tryptophan experts positive effects on the growth promotion and the repair of histiocyte.
3. D-Tryptophan plays a key role in growth performance and feed efficiency.
| Test Item | Specification |
| Appearance | White or off-white powder |
| Specific Rotation[α]25/D | +29.4°~+32.8° |
| Chloride(CL) | ≤0.10% |
| Sulphate(SO42-) | ≤0.03% |
| Iron(Fe) | ≤30ppm |
| Ammonium(NH4+) | ≤0.02% |
| Arsenic | ≤1ppm |
| Residue on ignition | ≤0.10% |
| Heavy metal(Pb | ≤10ppm |
| Other amino acids(TLC) | Chromatographically not detectable |
| Assay | 98.5%~101.5% |
| Loss on drying | ≤0.50% |
Storage: in dry, cool, and shaded place with original packaging, avoid moisture, store at room temperature.
Shelf Life: 48 months
Package:in 25kg/bag
delivery:prompt
1. What’s your payment terms?
T/T or L/C.
2. What’s your delivery time?
Usually we will arrange the shipment in 7 -15 days.
3. How about the packing?
Usually we provide the packing as 25 kg / bag or carton. Of course, if you have special requirements on them, we will according to you.
4. How about the validity of the products?
According to the products you ordered.
5. What documents you provide?
Usually, we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate. If your markets have any special requirements, let us know.
6. What is loading port?
Usually is Shanghai,Qingdao or Tianjin.
