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105707 L-Methionine

105707
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Overview

Replacement Information

Key Specifications Table

CAS #Empirical Formula
63-68-3C₅H₁₁NO₂S

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1057071000
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      1057079010
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          Description
          Catalogue Number105707
          SynonymsMet
          References
          Product Information
          CAS number63-68-3
          EC number200-562-9
          Hill FormulaC₅H₁₁NO₂S
          Molar Mass149.21 g/mol
          HS Code2930 40 10
          Structure formula ImageStructure formula Image
          Quality LevelMQ100
          Applications
          ApplicationL-Methionine for biochemistry. CAS 63-68-3, pH 5 - 7 (10 g/l, H₂O, 20 °C).
          Biological Information
          Physicochemical Information
          Density1.34 g/cm3 (20 °C)
          Melting Point280 - 282 °C
          pH value5 - 7 (10 g/l, H₂O, 20 °C)
          Bulk density550 kg/m3
          Solubility48 g/l
          Dimensions
          Materials Information
          Toxicological Information
          LD 50 oralLD50 Rat 36000 mg/kg
          Safety Information according to GHS
          RTECSPD0457000
          Storage class10 - 13 Other liquids and solids
          WGKWGK 1 slightly hazardous to water
          Disposal3
          Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.
          Safety Information
          Product Usage Statements
          Storage and Shipping Information
          StorageStore at +5°C to +30°C.
          Packaging Information
          Transport Information
          Supplemental Information
          Specifications
          Assay (perchloric acid titration, calculated on dried substance)≥ 99.0 %
          Identity (IR-spectrum)passes test
          Appearancewhite or almost white, crystalline powder or colorless crystals
          Appearance of solution (0.5 mol/l, hydrochloric acid 1 mol/l)clear and colorless
          Spec. rotation (α 20/D, 50 g/l, hydrochloric acid 1 mol/l, calc. on dried substance)+22.5 to +23.5
          UV-Absorption (260 nm, 0.5 mol/l, 1 cm, hydrochloric acid 1 mol/l)≤ 0.50
          UV-Absorption (280 nm, 0.5 mol/l, 1 cm, hydrochloric acid 1 mol/l)≤ 0.20
          Chloride (Cl)≤ 0.02 %
          Sulfate (SO₄)≤ 0.01 %
          Heavy metals (as Pb)≤ 0.001 %
          As (Arsenic)≤ 0.0005 %
          Ca (Calcium)≤ 0.001 %
          Co (Cobalt)≤ 0.0005 %
          Fe (Iron)≤ 0.0005 %
          K (Potassium)≤ 0.0005 %
          Mg (Magnesium)≤ 0.0005 %
          Na (Sodium)≤ 0.005 %
          NH₄ (Ammonium)≤ 0.01 %
          Zn (Zinc)≤ 0.0005 %
          Foreign amino acids≤ 0.3 %
          Other ninhydrine positive substances≤ 0.1 %
          Loss on drying (105 °C; 3 h)≤ 0.3 %
          Global Trade Item Number
          Catalog Number GTIN
          1057071000 04022536067636
          1057079010 04022536692753