China Dl-Methionine Feed Grade Amino Acids Minerals & Trace Elements Do Methionine Price Feed Grade 99% for Poultry Feed, Find details about China Dl-Methionine 99%, Dl-Methionine from Dl-Methionine Feed Grade Amino Acids Minerals & Trace Elements Do Methionine Price Feed Grade 99% for Poultry Feed
DL-Methionine CAS:59-51-8 is an amino acid. Amino acids are the building blocks that our bodies use to make proteins. Methionine is found in meat, fish, and dairy products, and it plays an important role in many cell functions.
DL-Methionine CAS:59-51-8 is a sulfur-containing amino acid that is butyric acid bearing an amino substituent at position 2 and a methylthio substituent at position 4. It is an alpha-amino acid and a sulfur-containing amino acid. It derives from a butyric acid. It is a conjugate base of a methioninium. It is a conjugate acid of a methioninate. It is a tautomer of a methionine zwitterion.
ITEMS | STANDARD | TEST RESULT |
Appearance | White crystals or crystalline powder | Conforms |
Assay | 99.0% ~ 101.0% | 99.90% |
Specific optical rotation | +22.4°~ +24.8° | +23.7° |
pH value | 5.6~6.1 | 6.0 |
Loss on drying | ≤ 0.3% | 0.13% |
Heavy metals(Pb) | ≤15ppm | 5 ppm |
Residue on ignition | ≤0.40% | 0.03% |
Chloride (as CL) | ≤0.05% | 0.01% |
Sulfate (SO4),(as SO4) | ≤0.03% | 0.005% |
Iron (as Fe) | ≤30ppm | 7ppm |
Organic volatile impurities | Meet the requirement | Conforms |
Identification | Infrared absorption | Conforms |
Packing:25kg/woven bag with PE lining
Storage & Transportation: Stored in a dry and ventilating warehouse. Keeping away from moisture and hot; unloaded with care. Stored separately from poisonous substances.