Changzhou Comwin Fine Chemicals Co., Ltd.
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Items
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Specification
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Appearance
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Pale yellow powder
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Related Substances (%)
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Ordinary impurity, TLC: NMT 1.0%
Guanine NMT 0.7%
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Loss on drying
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NMT 0.5%
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Heavy metals
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NMT 20ppm
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Sulphate ash
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NMT 0.1%
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Related Substance
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ImpurityA NMT 0.10%
Impurity B NMT 0.10%
Impurity C NMT 0.05%
Impurity D NMT 0.05%
Any other impurity NMT 0.10%
Total impurity NMT 0.30%
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Residual solvents
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Ethanol NMT 5000ppm
Xylene NMT 2170ppm
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Assay (%)
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99.0%~101.0%
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Standard
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EP8.5
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