21872-45-7 1,2-Propanediol, 3,3'-[oxybis[(2-hydroxy-3,1-propanediyl)oxy]]bis-

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21872-45-7 1,2-Propanediol, 3,3'-[oxybis[(2-hydroxy-3,1-propanediyl)oxy]]bis- - 化工 AI 网