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【Characteristics】:A white crystalline powder
Identification：According to BP98 USP24 EP97
Assay：84.0%-93.0%
Appearance of the solution：Clear and colourless
Crystallinly：Meets the requirements
Acidity：PH3.0-5.5
Specific Rotation：+135。-+150。
Water：＜3.0%-6.0%
Sulfated Ash：＜0.5%
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