tag-2421-28-5

CAS number	Product name	Molecular formula
2421-28-5	2421-28-5, 3,3',4,4'-Benzophenonetetracarboxylic dianhydride	C17H6O7

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1	2	3	4	5	6	7	8	9

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5	6	7	8	9	10

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