Product Details
This product is used in tape automated bonding (TAB), chip-on-film (COF), lead lock tapes, and high-density flexible printed circuits (FPC), including FPC stiffeners. Its applications also extend to office automation equipment, flexible solar cells, speaker diaphragms for mobile phones, plasma TVs, and automotive audio systems, as well as heavy electrical machinery. Additional uses include satellite thermal control films, printed circuit boards, metal substrates, sheet-type heating elements, and heat-resistant wires.

Chemical Properties
| English Name | 3,3',4,4'-Biphenyltetracarboxylic dianhydride |
| English Synonyms | 3,3',4,4'-Biphenyl tetracarboxylic dianhydride;[1,1'-Biphenyl]-3,3',4,4'-tetracarboxylic3,4:3',4'-dianhydride; 3,4,3',4'-Biphenyltetracarboxylic acid dianhydride;3,3',4,4'-Biphenyltetracarboxylic dianhydride 97%6;4,4'-Bip hthalic Anhydride (purified by sublimation);3,3'4,4'-Biphenyl tetracarboxylic acid dianhydride(s-BPDA);S-BD PA;S-BPDA |
| CAS Number | 2420-87-3 |
| Molecular Formula | C16H606 |
| Molecular Weight | 294.22 |
| EINECS Number | 219-342-9 |
| Melting point | 299-305 °C (lit.) |
| Boiling point | 614.9±48.0 °C(Predicted) |
| Density | 1.625±0.06 g/cm3(Predicted) |
| Vapor pressure | OPa at 20℃ |
| Storage conditions | Inert atmosphere,Room Temperature |
| Solubility | Almost transparent in hot DMF |
| Form | Powder crystals |
| Color | Off-white |
| Maximum wavelength (λmax) | 300nm(lit.) |
| InChI | InChI=1S/C16H6O6/c17-13-9-3-1-7(5-11(9)15(19)21-13)8-2-4-10-12(6-8)16(20)22-14(10)18/h1-6H |
| InChIKey | WKDNYTOXBCRNPV-UHFFFAOYSA-N |
| Smiles | C1(=O)C2=C(C=C(C3C=CC4C(=O)OC(=O)C=4C=3)C=C2)C(=0)01 |
| LogP | 3.91 |








