| Analysis | Description | Test Method |
| Assay (dry basis) | 99.0～101.0% | HPLC |
| Water | 7.2 to 10.0% | Dryer |
| Residue on ignition | Not More Than 0.10% | Ph. Eur. |
| Related substances | Not More Than 0.2% | Ph. Eur. |
| Endotoxin* | Less Than 6.0 EU/g | Ph. Eur. |
| State of solution(Transmittance) | Not Less Than 98.0% | Ph. Eur. |
| PH | 3.5～4.5 | Ph. Eur. |
| Specific rotation[α]20D | +8.9～+9.5° | Ph. Eur. |
| Ammonium (NH4) | Not More Than 0.020% | Ph. Eur. |
| Chloride (Cl) | 16.6～17.1% | Ph. Eur. |
| Sulfate (SO4) | Not More Than 0.020% | Ph. Eur. |
| Iron (Fe) | Not More Than 10 ppm | ICP-MS/AOAC 993.14 |
| Arsenic (As) | < 1 ppm | ICP-MS/AOAC 993.14 |
| Cadmium (Cd) | < 2 ppm | ICP-MS/AOAC 993.14 |
| Heavy metals (Pb) | Not More Than 10 ppm | ICP-MS/AOAC 993.14 |
| Mercury (Hg) | < 0.5 ppm | ICP-MS/AOAC 993.14 |
Aogubio provides pure amino acid bulk powder with top quality at wholesale price in the China. 5-HTP, AAKG 1:1 and 2:1, L-Arginine, L-Arginine HCL, L-Phenylalanine, L-Pyroglutamate, Acetyl L-carnitine, L-Aspartic Acid, Beta-Alanine, L-Citrulline, GABA, L-Glutamine, Glycine, L-Lysine, L-Methionine, L-Ornithine, L-Proline, Taurine, L-Theanine, L-Threonine, L-Tryptophan, L-Tyrosine, N-Acetyl-L-Tyrosine, L-Leucine, L-Isoleucine, L-Valine. Please contact for large quantity order, 10 Kg, 25 Kg, 50 Kg.
A nonessential amino acid in human. It plays a key role in the glucose-alanine cycle between muscle tissue and the liver. It is widely used as an ingredient in infusion and infant formula.
| Total Plate Count | < 3,000 cfu/g | AOAC 990.12 |
| Total Yeast & Mold | < 300 cfu/g | AOAC 997.02 |
| E. Coli | < 10 cfu/g | AOAC 991.14 |
| Coliforms | < 10 cfu/g | AOAC 991.14 |
| Salmonella | Negative | ELFA-AOAC |
| Staphylococcus | < 10 cfu/g | AOAC 2003.07 |
l‐Histidine HCl monohydrate is considered an efficacious source of the essential amino acid l‐histidine for non‐ruminant animal species. For the supplemental l‐histidine to be as efficacious in ruminants as in non‐ruminant species, it would require protection against degradation in the rumen.