Identification ：
Appearance ：
Appearance of solution:
Specific rotation:
Ninhydrin-positive substances:
Chlorides:
Sulfates:
Ammonium:
Iron:
Heavy metals:
Loss on drying:
Sulphated ash:
Assay:
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Conforms (As per EP5)
A white or almost white crystalline
powder or colourless crystals
Clear and not more intensely coloured
than reference solution Y 7
-11.0° to –12.3°
Conforms (As per EP5)
≤200ppm
≤300ppm
≤200ppm
≤10ppm
≤10ppm
≤0.5%
≤0.1%
99.0% to 101.0% , on dry
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