1.01007.0025 L-ALANINE MERCK

Description Catalogue Number 101007 Synonyms 2-Aminopropionic acid, Ala Product Information CAS number 56-41-7 EC number 200-273-8 Hill Formula C₃H₇NO₂ Molar Mass 89.09 g/mol HS Code 2922 49 85 Structure formula Image Structure formula Image Quality Level MQ100 Applications Application L-Alanine for biochemistry. CAS 56-41-7, pH 5.5 - 6.5 (100 g/l, H₂O, 20 °C). Physicochemical Information Density 1.432 g/cm3 (22 °C) Melting Point 314.6 °C (decomposition) pH value 5.5 - 7.0 (89.1 g/l, H₂O, 25 °C) Bulk density 660 kg/m3 Solubility 166.5 g/l Safety Information according to GHS RTECS AY2990000 Storage class 10 - 13 Other liquids and solids WGK WGK 1 slightly hazardous to water Disposal 3 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. Storage and Shipping Information Storage Store at +5°C to +30°C. Specifications Assay (perchloric acid titration, calculated on dried substance) 99.0 - 101.0 % Identity (IR-spectrum) passes test Identity (specific rotation) passes test Appearance white to almost white crystalline powder or colorless crystals Appearance of solution (25 g/l, water) clear and not more intense in color than reference solution BY₆ Spec. rotation (α 20/D, 100 g/l, hydrochloric acid 250 g/l, calc. on dried substance) +13.5 to +15.5 Chloride (Cl) ≤ 200 ppm Sulfate (SO₄) ≤ 100 ppm As (Arsenic) ≤ 5 ppm Ca (Calcium) ≤ 50 ppm Co (Cobalt) ≤ 5 ppm Fe (Iron) ≤ 5 ppm K (Potassium) ≤ 5 ppm Mg (Magnesium) ≤ 5 ppm Na (Sodium) ≤ 50 ppm Pb (Lead) ≤ 10 ppm Zn (Zinc) ≤ 5 ppm Ninhydrin-positive substances (LC) (any ninhydrin-positive impurity) ≤ 0.10 % Ninhydrin-positive substances (LC) (ammonium (570 nm)) ≤ 0.02 % Ninhydrin-positive substances (LC) (total impurities) ≤ 0.5 % Loss on drying (105 °C; 3 h) ≤ 0.2 %

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