NAC(N-acetyl Cysteine)
China [CN] |
Analysis Contents
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Analysis Standard
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Appearance
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White crystals or crystalline powder
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Assay
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98.5% to 101.0%
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State of solution
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Not less than 98.0%
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Specific optical rotation
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+21.3 to +27.0 Degree
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Chloride
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Not more than 0.04%
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Sulfate
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Not more than 0.03%
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Ammonium
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Not more than 0.02%
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Iron
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Not more than 20ppm
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Heavy metals(Pb)
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Not more than 10ppm
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Arsenic(As2O3)
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Not more than 1ppm
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Other amino acids
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Chromatographically not detectable
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Loss on drying
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Not more than 0.50%
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Residue on ignition
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Not more than 0.20%
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PH
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2.0 to 2.8
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Melting point
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106 to 110掳
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