Merck 1072560025 苯丙氨酸,生物化学适用 (C₉H₁₁NO₂, Plastic bottle 25g)
制造商: Merck Model: 1072560025 - 报价要求
- 报价要求
Price (exclude VAT) 1,365,050 VND Price (include VAT) 1,501,555 VND
CAS #: 63-91-2
EC number: 200-568-1
Hill Formula: C₉H₁₁NO₂
Molar Mass: 165.19 g/mol
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
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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