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1-Methyl-4-piperidone, N-甲基-4-哌啶酮/500g/CAS:1445-73-4'); document.write('¥930
Sodium bis(trimethylsilyl)amide, 双(三甲基硅基)氨基钠/500ml/CAS:1070-89-9'); document.write('¥1040