Yantai Gem Chemicals Co., Ltd.

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N,N'-Diphenyl- benzidine

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4-bromo-4'-(diphenylamino)biphenyl

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9-bromoanthracene

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9,10-Dibromoanthracene

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9-(1-naphthalenyl) anthracene

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9-bromo-10-(1-naphthalenyl) anthracene

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9-(1,1'-Biphenyl)-4-yl-10-bromo-anthracene

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1,4-Dibromonaphthalene

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9,9-Bis(4-aminophenyl)fluorene

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1,1-Bis(4-di-p-tolylaminophenyl)cyclohexane

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