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3 3 4 4 -biphenyltetracarboxylic dianhydride/bpda cas 2420-87-3

Production name: 3 3 4 4 -biphenyltetracarboxylic dianhydride
Cas No.:2420-87-3
Molecular Formula:C16H6O6
Molecular weight: 294.22
IdentificationA.H-NMR:Comply with the structure
B.LC-MS:Comply with the structure
C.The IR spectrum of sample should be identical with that of reference standard;
D.HPLC-ESI-MSThe retention time of the major peak in the chromatogram of the

Assay preparation corresponds to that in the chromatogram of the Standard

preparation, as obtained in the Assay.

Loss on drying≤0.5%
Heavy metals≤10 ppm
Sulphated ash≤0.2%, determined on 1.0 g.
Related substancesUnspecified impurities: for each impurity≤0.10%
Total Impurity≤1.0%
Assay99.0%~101.0% (anhydrous substance).


Tape automated bonding (TAB), chip on film (COF), lead lock tape, high density flexible printed circuit (FPC), stiffener for FPC, office automation equipment, flexible solar cells, speaker diaphragms (for mobile phones, plasma televisions and car audio, etc.), heavy electric machinery, office automation equipment, thermal control film for satellites, printed circuit boards, metallic substrates, sheet heating elements, heat resistance wires.


It should be sealed and shaded to be stored in a dry, cool, well ventilated place.