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(R)-(+)-1,1'-Bi-2-naphthol, R-1,1'-联-2-萘酚/100g/CAS:18531-94-7'); document.write('¥2600
Dichlorotriphenylphosphorane, 三苯基二氯化膦/25g/CAS:2526-64-9'); document.write('¥350