1. Appearance: white flat-form crystal;
2. Specific rotation: -32f+2¼b
3. Assay: fª98.5%
4. Heavy metal: f_0.004%
5. Residue on ignition: f_0.1%
Packing: 25kg net weight in standard export fiber drum with 2-layer pe bags.
L-tryptophan (feed grade)
Specification:
1. Appearance: white flat-form crystal;
2. Specific rotation: -32f+2¼b
3. Assay: fª98.5%
4. Heavy metal: f_0.004%
5. Residue on ignition: f_0.1%
25kg net weight in standard export fiber drum with 2-layer pe bags.
