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Tryptophan is an amino acid necessary for the growth and development of young animals, and is the main feed amino acid after lysine, methionine and threonine. Adding tryptophan can improve the utilization efficiency of amino acids in feed, increase feed intake, promote growth and improve immunity, at the same time, it can alleviate the stress response of piglets after weaning and improve breeding efficiency. It has been widely used in various feeds.
| CAS No | 73-22-3 |
| MF | C11H12-N2-O2 |
| EINECS No | 200-795-6 |
| Storage | Cool Dry Place |
| Shelf Life | 2 Years |
| Testing Item | Standard | Result |
| Appearance | White to light yellow crystal powder | conforms |
| Assay/% | ≥98.00 | 99.1 |
| Specific Rotation | -29.0° -32.8° | -29.3° |
| Residue on Ignition/% | ≤0.50 | 0.4 |
| Loss on Drying/% | ≤0.50 | 0.3 |
| 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 |
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