L(+)-Asparagine monohydrate 99%
Supplier: Thermo Fisher Scientific
Certificates
About this item
Synonyms: L-Asparagine monohydrate, H-Asn-OH·H₂O, (S)-(+)-Asparagine monohydrate, (S)-2,4-Diamino-4-oxobutanoic acid hydrate, H-Asn-OH.H2O
CAS Number:5794-13-8
:
Formula:C₄H₈N₂O₃·1H₂O
MDL Number:MFCD00151038
:150.13 g/mol
Merck Index:14,00837
Melting Pt:233…235 °C
Density:1,567 g/cm³ (20 °C)
Storage Temperature:Ambient
EINECS:200-735-9
Specifications
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Specifications
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)
Specification Test Results
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