(([2,2'-Bipyridine]-4,4'-diylbis(oxy))bis(4,1-phenylene))dimethanamine
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B13778 (([2,2'-Bipyridine]-4,4'-diylbis(oxy))bis(4,1-phenylene))dimethanamine 98% 【psaitong】 |
L-365260
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L60016 L-365260 ≥98% 【psaitong】 |