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聚乙二醇,25322-68-3,average Mn 300
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聚乙二醇,25322-68-3,average Mn 20000
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聚乙二醇,25322-68-3,average Mn 1500
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聚乙二醇,25322-68-3,average Mn 800
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聚乙二醇,25322-68-3,average Mn 10000
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聚乙二醇,25322-68-3,average Mn 8000
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聚乙二醇,25322-68-3,average Mn 6000
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聚乙二醇甲基醚,9004-74-4,average Mn 10,000
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聚乙二醇甲基醚,9004-74-4,average Mn 20,000
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聚乙二醇,25322-68-3,average Mn 6000 for synthesis
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