Product Name:L-Serine

ITEMS STANDARD
Appearance A white or almost white, crystalline powder or colourless crystals.
Solubility Freely soluble in water,practically insoluble in alcohol.
Identification test (A,B) Up to the STANDARD
Appearance of solution Clarity of solution:5% water solution should be clear
Colour of solution:5% water solution should be not more intensively coloured than reference solution BY6
Specific optical rotation +14.0° to +16.0°
Assay 98.5-101.0%
Chlorides 200ppm max
Sulphates 300ppm max
Ammonium 200ppm max
Iron 10ppm max
Heavy metals 10ppm max
Loss on drying 0.5% max
Sulphated ash 0.1% max
Ninhydrin-positive substances (TLC) Up to the STANDARD

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