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Merck 107256 0025 Phenylalanine For Biochemistry 25 GR.
Merck 107256 0025 Phenylalanine For Biochemistry 25 GR.

Merck 107256 0025 Phenylalanine For Biochemistry 25 GR.

Ürün Kodu:1072560025
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Ürün Açıklaması
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Description
Catalogue Number107256
SynonymsPhe, 2-Amino-3-phenylpropionic acid
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Product Information
CAS number63-91-2
EC number200-568-1
Hill FormulaC₉H₁₁NO₂
Molar Mass165.19 g/mol
HS Code2922 49 85
Structure formula ImageStructure formula Image
Quality LevelMQ100
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Applications
ApplicationL-Phenylalanine for biochemistry. CAS 63-91-2, pH 5.4 - 6.0 (10 g/l, H₂O, 20 °C).
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Physicochemical Information
Density1.34 g/cm3 (20 °C)
Melting Point270 - 284 °C (decomposition)
pH value5.0 - 7 (16.5 g/l, H₂O, 25 °C)
Vapor pressure<1 Pa (25 °C)
Bulk density580 kg/m3
Solubility27 g/l
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Safety Information according to GHS
RTECSAY7535000
Storage class10 - 13 Other liquids and solids
WGKWGK 1 slightly hazardous to water
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Storage and Shipping Information
StorageStore at +2°C to +30°C.
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Specifications
Assay (perchloric acid titration, calculated on dried substance)99.0 - 101.0 %
Identity (IR-spectrum)passes test
Identity (specific rotation)passes test
Appearancewhite to almost white, crystalline powder
Appearance of solution (50 g/l, hydrochloric acid 1 mol/l)clear and colorless
Spec. rotation (α 20/D, 20 g/l, water, calc. on dried substance)-33,0 to -35,5
Chloride (Cl)≤ 200 ppm
Sulfate (SO₄)≤ 300 ppm
Al (Aluminium)≤ 5 ppm
As (Arsenic)≤ 5 ppm
Ca (Calcium)≤ 10 ppm
Co (Cobalt)≤ 5 ppm
Fe (Iron)≤ 5 ppm
K (Potassium)≤ 5 ppm
Mg (Magnesium)≤ 5 ppm
Na (Sodium)≤ 50 ppm
Zn (Zinc)≤ 5 ppm
Ninhydrin-positive substances (LC) (any ninhydrin-positive impurity)≤ 0.2 %
Ninhydrin-positive substances (LC) (ammonium (570 nm))≤ 0.02 %
Ninhydrin-positive substances (LC) (total impurities)≤ 0.5 %
Loss on drying (105 °C; 3 h)≤ 0.3 %

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