L(+)-Asparagine monohydrate, meets analytical specification of Ph.Eur.

Supplier: Thermo Scientific Chemicals

ThermoScintific Chemicals

ThermoScintific Chemicals

Synonyms: H-Asn-OH.H2O , H-Asn-OH·H₂O , L-Asparagine monohydrate , (S)-(+)-Asparagine monohydrate , (S)-2,4-Diamino-4-oxobutanoic acid hydrate

40148-2500 40148-1000 40148-0010

TS40148-2500EA 141 USD

TS40148-2500 TS40148-1000 TS40148-0010

L(+)-Asparagine monohydrate, meets analytical specification of Ph.Eur.

L(+)-Asparagine monohydrate

Formula: C₄H₈N₂O₃·1H₂O
MW: 150.13 g/mol
Melting Pt: 233…235 °C
Storage Temperature: Ambient

MDL Number: MFCD00151038
CAS Number: 5794-13-8

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)
Related substances	≤0.1 % (impurity C)
Related substances	≤0.05 % (unspecified impurities)
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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