L(+)-Asparagin Monohydrat, erfüllt analytische Spezifikationen von Ph.Eur.

Lieferant: Thermo Scientific

Synonyme: (S)-(+)-Asparagin Monohydrat, (S)-(+)-2-Amino-1,4-butandisäure-4-amid Monohydrat, L-Asparagin Monohydrat, L(+)-2-Amino-1,4-butandisäure-4-amid Monohydrat, H-Asn-OH.H2O

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L(+)-Asparagin Monohydrat, erfüllt analytische Spezifikationen von Ph.Eur.
L(+)-Asparagin Monohydrat
Formel: C₄H₈N₂O₃·1H₂O
Molecular Weight: 150,13 g/mol
Schmelzpunkt: 233…235 °C
Dichte: 1,567 g/cm³ (20 °C)
Lagertemperatur: Raumtemperatur
MDL: MFCD00151038
CAS-Nummer: 5794-13-8

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Spezifikation Testergebnisse

Appearance Colorless to white to almost white Crystalline powder or crystals
Infrared spectrum Conforms
Loss on drying 10.5 % to 12.5 % (1 g, 130°C, 3 h)
Sulfated ash ≤0.1 % (1 g)
Appearance of solution Clear colorless
Related substances ≤0.8 % (total impurities)
pH 4.0 to 6.0
Specific optical rotation +33.7° to +36.0° (20°C, 589 nm) (on dried substance)
Titration with HClO4 99.0 to 101.0 % (on dried substance)
Sulfates ≤200 ppm
Chlorides ≤200 ppm
Ammonium (NH4) ≤0.1 %
Iron (Fe) ≤10 ppm

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