L-Methionine
Category:
Amino Acid
Keywords:
L-Methionine
Product Description
Product specifications
| L-Methionine | USP40 | AJI92 | EP6 | USP43 | EP8 |
| content | 98.5-101.5% | 99.0-100.5% | 99.0-101.0% | 98.5-101.5% | 99.0-101.0% |
| acidity | 5.6-6.1 | 5.6-6.1 | 5.5-6.5 | 5.6-6.1 | 5.5-6.5 |
| Specific rotation [a]D20 | / | +23.0°-+24.5° | +22.5°-+24.0° | +22.4°-+24.7° | +22.5°-+24.0° |
| Specific rotation [a]D25 | +22.4°-+24.7° | / | / | / | / |
| Light | / | ≥98.0% | clear & colorless | / | / |
| chloride | ≤0.03% | ≤0.02% | ≤0.02% | ≤0.05% | ≤0.02% |
| Ammonium salt | / | ≤0.02% | ≤0.02% | ≤0.02% | |
| sulfate | ≤0.03% | ≤0.02% | ≤0.03% | ≤0.03% | ≤0.03% |
| Iron salts | ≤30PPM | ≤10PPM | ≤10PPM | ≤30PPM | ≤10PPM |
| heavy metal | ≤15PPM | ≤10PPM | ≤10PPM | / | / |
| Arsenic salts | / | ≤1PPM | / | / | / |
| Other amino acids | individual impurities≤0.5% total impurities≤2.0% | conforms | / | individual impurities≤0.5% total impurities≤2.0% | / |
| Ninhydrin active substance | / | / | conform | / | Each impurity≤ 0.2% Total impurities≤ 0.5% |
| Loss on drying | ≤0.3% | ≤0.20% | ≤0.50% | ≤0.3% | ≤0.50% |
| Blazing residue | ≤0.4 | ≤0.10% | ≤0.10% | ≤0.4 | ≤0.10% |
Mainly used as a nutritional supplement. It has the same physiological effect as L-type methionine, but the price is low (L-type is made from DL-type), so DL-methionine is generally used. It is a restricted amino acid in plant foods such as oats, rye, rice, corn, wheat, peanut flour, soybeans, potatoes and spinach. It is added to the above foods to improve amino acid balance. Requirements vary with cystine intake.
Product Name | L-Methionine |
CAS | 63-68-3 |
MF | C5H11NO2S |
EINECS | 200-562-9 |
MOQ | 1 kg, please consult for details |
Sample And Customize | Support |
Delivery Time | 7-15 days |
Shipping Method | sea freight,land transport,air transport,express delivery |
Package | standard packaging |
Payment Method | ALL |
Place of Origin | Shandong China |
Brand | worldsun |
Production Capacity | 1000 tons/year |
Quality | Top Quality |
L-Methionine
Category:
Amino Acid
Keywords:
L-Methionine