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CAS号: 77243-85-7 英文名称: 2-Oxepanone, polymer with 1,4-butanediol, .alpha.-hydro-.omega.-hydroxypoly(oxy-1,4-butanediyl) and 1,1-methylenebis4-isocyanatobenzene 英文同义词: 2-Oxepanone, polymer with 1,4-butanediol, .alpha.-hydro-.omega.-hydroxypoly(oxy-1,4-butanediyl) and 1,1-methylenebis4-isocyanatobenzene 中文名称: 中文同义词: 分子式: 分子量: 0 Mol file