L-Methionine

Product description Product description We can supply amino acid series such as: l-glutamine, l-aspartic acid, l-sodium aspartic, l-cysteine hcl monohydrate, l-cysteine hcl anhydrous, l-methionine, taurine, glycine, etc. L-methionine 63-68-3 Molecular formula: c5n11no2s Molecular weight: 149.1 Cas no: 63-68-3 Characteristics: white crystals or crystalline powder Quality standards: usp24, fcciv, aji92 Item specifications Usp28 aji92 fcc iv Appearance white crystals or crystalline powder colorless or white lustrous Plates, or a white crystalline powder, It has slight, characteristic odor. Identification infrared absorption spectrum ------- Specific optical rotation +22.4íp -+24.7íp +23.0íp -+24.0íp +21.0íp -+25.0íp State of solution ------- í² 98.0% soluble in water, alkali solutions (transmittance) and in dilute mineral acids Chloride(cl) ín 0.05% ín 0.02% ------ Sulfate( as so4) ín 0.03% ín 0.02% ------ Ammonium(nh4) ---------- ín 0.02% ---------- Heavy metals( as pb) ín 0.0015% ín 10ppm ín 10ppm Lead ---------- ---------- ín 10mg/kg Iron ín 10ppm ín 0.003% ---------- Arsenic( as as) ---------- ín 1ppm ---------- Other amino acids ---------- conforms ---------- Loss on drying, % ín 0.30% ín 0.20% ín 0.50% Residue on ignition ín 0.40% ín 0.10% ín 0.10% Assay 98.5-101.5% 99.0-101.0% 98.5-101.5% Ph value 5.6-6.1 5.6-6.1 ----------- O. V. 1 meet the requirements ----------- ----------- Packaging and storage: in 25kgs fiber drum double polyethylene bags inside; preserve in well-closed containers, at controlled room temperature. Recommended limit: 1 year. More product features Trademark: gg Model no.: 63-68-3 Standard: usp24, fcciv, aji92 Productivity: 15 tons Origin: china Packing: 25kg/drum Classification: food additives

L-Methionine is colorless or white shiny flake crystal or white crystalline powder, slightly with special smell and slightly bitter taste.The melting point of 280 ~ 281 â??.Unstable to strong acids, which can lead to demethylation.Soluble in water (5.6 g / 100 ml, 30 â??), warm dilute ethanol, alkaline solution, or dilute mineral acids.Insoluble in ethanol, almost insoluble in ether. Application: 1.Used for biochemical research and nutritional supplements, but also for the adjuvant treatment of pneumonia, cirrhosis and fatty liver 2.Can be used as feed additive

Cbz-L-Methionine(CAS:1152-62-1)

CAS #: 24346-00-7 Availability: Request a quote only Molecular Weight: 434.90 Hazard Information: Not D.O.T.-Regulated.

DL-Methionine CAS No: 59-51-8 Molecular formula: C5H11NO2S Molecular weight: 149.21 Product standard: AJI-92/97 Version, EP-4 Version, USP-24/26 Version, FCC-4 Version Properties: White flaky crystal or crystalline powder. Has special smell. Slight sweet taste. Melting point: 281 degree C(decompound). 10% aqueous solution's pH value is 5.6-6.1. No optical rotation, stable to heat and air. Unstable to strong acid, can cause the demethylation. Soluble in water(3.3G/100ml, 25degree C), diluted acid and diluted alkali solution. Very hard to dissolve in ethanol, almost does not dissolve in ether. Use: DL-Methionine is one of the basic units for composing the protein, is the only sulfur bearing amino acid among the essential amino acids, it participated in the transmethylation interior the animal body, the phosphorus metabolism and the adrenalin, choline and creatine synthesis, it also is the raw material of the protein and cystine synthesis. Methionine is unable to synthesize in the animal body, must take in from food. Adds it in the feed, can promote the poultry to grow, increase lean meat quantity and reduce the feeding cycle.

Supplier: L methionine

Supplier: Natamycin, nisin, s-adenosyl-l-methionine, glutathione