CAS No.: | 63-68-3 |
---|---|
Formula: | C5h11no2s |
EINECS: | 200-562-9 |
Packaging Material: | Sealed Bag |
Storage Method: | Cool and Dry |
Shelf Life: | >12 Months |
Samples: |
---|
Suppliers with verified business licenses
L-Methionine Mainly used as a nutritional supplement. The physiological effect is the same as L-methionine, but the price is low (L-type is prepared by DL-type), so DL-methionine is generally used. In oats, rye, rice, corn, wheat, peanut powder, soybeans, potatoes, spinach and other plant foods are restricted amino acids. Added to the above foods to improve amino acid balance. The amount required varies with the amount of cystine consumed.
Product name
|
Top Quality 63-68-3 Food Grade L-Methionine
|
Assay
|
98.5-101.5%
|
Molecular Formula
|
C5H11NO2S
|
Molecular Weight
|
149.21
|
CAS No
|
63-68-3
|
Shelf life
|
2 years
|
Package
|
1kg L-Methionine/with double plastic container inside/Aluminum foil bag outside. 1kg/Carton, 5kg/Carton, 10kg/Carton, 25kg/Drum, OEM |
Shipment
|
FedEx,DHL,EMS,UPS
|
Delivery time
|
Within 2-3 work days after payment
|
Payment terms
|
TT,Alibaba Trade Assurance,Western Union
|
L-Methionine | USP36 | AJI92 | EP6 |
Assay | 98.5-101.5% | 99.0-100.5% | 99.0-101.0% |
PH | 5.6-6.1 | 5.6-6.1 | 5.5-6.5 |
Specific rotation[a]D20 | / | +23.0°-+24.5° | +22.5°-+24.0° |
Specific rotation[a]D25 | +22.4°-+24.7° | / | / |
Transmittance(T430) | / | ≥98.0% | clear & colorless |
Chloride(Cl) | ≤0.05% | ≤0.02% | ≤0.02% |
Ammonium(NH4) | / | ≤0.02% | ≤0.02% |
Sulfate(SO4) | ≤0.03% | ≤0.02% | ≤0.03% |
Iron(Fe) | ≤30PPM | ≤10PPM | ≤10PPM |
Heavy metals(Pb) | ≤15PPM | ≤10PPM | ≤10PPM |
Other amino acids | individual impurities≤0.5% total impurities≤2.0% | conforms | / |
Ninhydrin-positive substances | / | / | conform |
Loss on drying | ≤0.3% | ≤0.20% | ≤0.50% |
Residue on ignition | ≤0.4 | ≤0.10% | ≤0.10% |
Suppliers with verified business licenses