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2420-87-3

Basic Information
CAS No.: 2420-87-3
Name: 3,3',4,4'-Biphenyltetracarboxylic dianhydride
Article Data: 25
Molecular Structure:
Molecular Structure of 2420-87-3 (3,3',4,4'-Biphenyltetracarboxylic dianhydride)
Formula: C16H6O6
Molecular Weight: 294.22
Synonyms: 3,3',4,4'-Biphenyltetracarboxylic3,4:3',4'-dianhydride (7CI,8CI);3,3',4,4'-Biphenyltetracarboxylic acidanhydride;3,3',4,4'-Biphenyltetracarboxylic anhydride;3,4,3',4'-Biphenyltetracarboxylic acid dianhydride;4,4'-Biphthalic anhydride;BPDA;[1,1'-Biphenyl]-3,3',4,4'-tetracarboxylic3,4:3',4'-dianhydride;
EINECS: 219-342-9
Density: 1.625 g/cm3
Melting Point: 299-305 °C
Boiling Point: 614.9 °C at 760 mmHg
Flash Point: 277.4 °C
Hazard Symbols: IrritantXi
Risk Codes: 36/37/38
Safety: 26-36
PSA: 86.74000
LogP: 1.97480
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    Supplier 2420-87-3 3,3',4,4'-biphenyltetracarboxylic di-anhydride Molecular Formula C16H6O6 Molar Mass 294.22 Density 1.625±0.06 g/cm3(Predicted) Melting Point 299-305 °C (lit.)

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Chemistry

IUPAC Name: 5-(1,3-Dioxo-2-benzofuran-5-yl)-2-benzofuran-1,3-dione
Synonyms of 4,4'-Biphthalic dianhydride (CAS NO.2420-87-3): EINECS 219-342-9 ; (5,5'-Biisobenzofuran)-1,1',3,3'-tetrone
CAS NO: 2420-87-3
Molecular Formula: C16H6O6
Molecular Weight: 294.2152
Molecular Structure:

Melting Point: 299-305°C
ProductCategories: Biphenyl & Diphenyl ether ; Aromatic Tetracarboxylic Dianhydrides (for High-Performance Polymer Research) ; Biphenyls (for High-Performance Polymer Research) ; Functional Materials ; Reagent for High-Performance Polymer Research ; Monomer for Polyimide film ; Anhydride Monomers ; Monomers ; Polymer Science 
Polar Surface Area: 86.74 Å2
Index of Refraction: 1.696
Molar Refractivity: 69.7 cm3
Molar Volume: 180.9 cm3
Surface Tension: 75.1 dyne/cm
Density: 1.625 g/cm3
Flash Point: 277.4 °C
Enthalpy of Vaporization: 91.23 kJ/mol
Boiling Point: 614.9 °C at 760 mmHg
Vapour Pressure: 4.7E-15 mmHg at 25°C

Uses

 4,4'-Biphthalic dianhydride (CAS NO.2420-87-3) is used as the important intermediate for API.

Safety Profile

Safety Information for 4,4'-Biphthalic dianhydride (CAS NO.2420-87-3)
Hazard Codes: IrritantXi
Risk Statements: 36/37/38 
R36/37/38: Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36: Wear suitable protective clothing.

Specification

Stability and Reactivity Data for 4,4'-Biphthalic dianhydride (CAS NO.2420-87-3)
Stability: This material is stable if stored under proper conditions.
Conditions of Instability: Avoid excessive heat and light.
Incompatibilities: Reactive with oxidizing agents.