L(+)-Asparagine monohydrate 99%

Supplier: Thermo Scientific

ACRO175270050EA 1110 EUR
ACRO175270050 ACRO175271000 ACRO175270010 ACRO175272500
L(+)-Asparagine monohydrate 99%
L(+)-Asparagine monohydrate

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Specification Test Results

Appearance White Crystalline powder
Infrared spectrum Conforms
Loss on drying 11.5 % to 12.5 % (130°C, 3 hrs)
Sulfated ash ≤0.1 %
UV transmittance ≥98 % (c=2, H2O, 430 nm) 1 cm cell
Specific optical rotation +33.5° to +36.5° (20°C, 589 nm) (c=10, 6 N HCl) (on dry substance)
Titration with HClO4 98.5 to 101.5 % (On dried substance)
Chloride (Cl) ≤210 ppm
Sulfate (SO4) ≤280 ppm
Ammonium (NH4) ≤1000 ppm
Arsenic (As) ≤1 ppm
Iron (Fe) ≤10 ppm
Heavy metals (as Pb) ≤10 ppm
Other amino acids ≤1 % (TLC)

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