L(+)-Asparagine monohydrate, meets analytical specification of Ph.Eur.
Supplier: Thermo Scientific Chemicals
Certificates
About this item
CAS Number:5794-13-8
:
Formula:C₄H₈N₂O₃·1H₂O
MDL Number:MFCD00151038
:150.13 g/mol
Melting Pt:233…235 °C
Storage Temperature:Ambient
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Specification Test Results
- 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:≤0.5 % (impurity A)
- 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