CAS No 2420-87-3 , 5-(1,3-dioxo-2-benzofuran-5-yl)-2-benzofuran-1,3-dione

Name: 5-(1,3-dioxo-2-benzofuran-5-yl)-2-benzofuran-1,3-dione
Synonyms: 2420-87-3;3,3',4,4'-Biphenyltetracarboxylic dianhydride; [5,5'-Biisobenzofuran]-1,1',3,3'-tetrone;5-(1,3-dioxo-2-benzofuran-5-yl)-2-benzofuran-1,3-dione; 4,4'-Biphthalic dianhydride;
CAS Registry Number:2420-87-3
Melting Point: 299-305 ºC
Flash Point: 277.4°C
Boiling Point: 614.9°Cat760mmHg
Density: 1.625g/cm³
Refractive index: 1.696
Safety Statements: R36/37/38
Hazard Symbols: Xi: Irritant;
Flash Point: 277.4°C
EINECS: 219-342-9
Molecular Weight: 294.21524
InchiKey: WKDNYTOXBCRNPV-UHFFFAOYSA-N
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
Risk Statements: S26;S36
Molecular Formula: C₁₆H₆O₆
Molecular Structure:

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             Shijiazhuang Haili Fine-Chemical Co., Ltd.
             
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           2420-87-3 3,3',4,4'-Biphenyltetracarboxylicdianhydride
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             POME Sci-tech Co., Ltd. BEIJING
             
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