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High quality factory price L-Methionine CAS 63-68-3 L Methionine Dl-Methionine

High quality factory price L-Methionine CAS 63-68-3 L Methionine Dl-Methionine

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1 Kilogram

Negotiable

  • Min.Order :1 Kilogram
  • Purity: >99%
  • Payment Terms : L/C,T/T,Other

Keywords

L Methionine Dl-Methionine L-Methionine

Quick Details

  • Appearance:white powder
  • Application: For pharmaceutical
  • PackAge:1-5KG/Tin or Bag,25KG/Drum, 200KG/Drum
  • ProductionCapacity:1000 |Metric Ton|Year
  • Storage:Cool Dry Place
  • Transportation:by sea or by air

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Details:

Basic information

Chemical Name: L-Histidine hydrochloride monohydrate
CAS No.: 5934-29-2
Molecular Fomula:C6H12ClN3O3
Molecular weight: 209.63
Appearance: white powder
Assay:99~101%

L-methionine, also known as L-methionine, is the left-hand form of methionine, chemical formula is C5H11NO2S, chemical properties for colorless or white shiny flake crystal or white crystalline powder, slightly with a special smell, slightly bitter taste.Melting point 280 ~ 281ºC.Instable to strong acids, which can lead to demethylation.Soluble in water (5.6g/100mL,30ºC), warm dilute ethanol, alkaline solution or dilute inorganic acid.Insoluble in ethanol and almost insoluble in ether.Toxicity: LD50 29mmol/kg (rats, intraperitoneal injection).

Food Grade:

Item AJI92 USP32 USP40
Description White crystals or crystalline powder --- ---
Identification Conform Conform Conform
Assay 99.0%~100.5% 98.5%~101.5% 98.5%~101.5%
pH 5.6~6.1 5.6~6.1 5.66.1
Transmittance ≥98.0% --- ---
Loss on drying ≤0.20% ≤0.3% ≤0.3%
Residue on ignition ≤0.10% ≤0. 4% ≤0. 4%
Chloride ≤0.020% ≤0.05% ≤0.05%
Heavy Metals ≤10ppm ≤15ppm ≤15ppm
Iron ≤10ppm ≤30ppm ≤30ppm
Sulfate ≤0.020% ≤0.03% ≤0.03%
Ammonium ≤0.02% --- ---
Other amino acids Conforms Conforms Conforms
Pyrogen Conforms --- --
Specific Rotation +23.0° ~ +25.0° +22.4º~+24.7º +22.4º~+24.7º


Feed Grade:

L-Methionine AJI92 USP32 USP40
Description White crystals or crystalline powder --- ---
Identification Conform Conform Conform
Assay 99.0%~100.5% 98.5%~101.5% 98.5%~101.5%
pH 5.6~6.1 5.6~6.1 5.66.1
Transmittance ≥98.0% --- ---
Loss on drying ≤0.20% ≤0.3% ≤0.3%
Residue on ignition ≤0.10% ≤0. 4% ≤0. 4%
Chloride ≤0.020% ≤0.05% ≤0.05%
Heavy Metals ≤10ppm ≤15ppm ≤15ppm
Iron ≤10ppm ≤30ppm ≤30ppm
Sulfate ≤0.020% ≤0.03% ≤0.03%
Endotoxin --- --- ---
Ammonium ≤0.02% --- ---
Other amino acids Conforms Conforms Conforms
Pyrogen Conforms --- --
Hydrolyzable substances --- --- ---
Specific Rotation +23.0° ~ +25.0° +22.4º~+24.7º +22.4º~+24.7º


Pharma Grade:

Item USP32 USP40
Identification Conform Conform
Assay 98.5%~101.5% 98.5%~101.5%
pH 5.6~6.1 5.66.1
Loss on drying ≤0.3% ≤0.3%
Residue on ignition ≤0. 4% ≤0. 4%
Chloride ≤0.05% ≤0.05%
Heavy Metals ≤15ppm ≤15ppm
Iron ≤30ppm ≤30ppm
Sulfate ≤0.03% ≤0.03%
Other amino acids Conforms Conforms
Specific Rotation +22.4º~+24.7º +22.4º~+24.7º

Packaging & Delivery

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