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Shandong Helishi Zhongjie Chemicals Co.,Ltd

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4,4� oxydiphthalic anhydride (odpa)
4,4� oxydiphthalic anhydride (odpa)
Specification: 99.2%min
Detail: Molecular formula：C16H6O7 CAS �823-59-2 Physical Properties� 4,4� oxydiphthalic anhydride (ODPA) is white or off-Whitecrystal，the melting point is 227 - 230� Application: Widely used to produce high performan...

2
3,3',4,4'-biphenyltetracarboxylic dianhydride(bpda
3,3',4,4'-biphenyltetracarboxylic dianhydride(bpda
Specification: 99.8%min
Detail: Chemical name�,3',4,4'-biphenyltetracarboxylic dianhydride(BPDA) Molecular formula：C16H6O6 CAS�420-87-3 Physical and Chemical Properties� white crystalline powder, melting point (299.0~302.0 ° C), stable chemical p...

3
4,4'-diaminodiphenyl ether(oda)
4,4'-diaminodiphenyl ether(oda)
Specification: 99.6%min
Detail: Physical Properties� The product is white or pale yellow powder or grain, which can dissolve in ***C, DMF and other organic solvents, but can’t dissolve in water, while can be dissolved slightly in ethanol, and can be diss...
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