9,9-Bis(3,4-dicarboxyphenyl)fluorene Dianhydride

Product Name: 9,9-Bis(3,4-dicarboxyphenyl)fluorene Dianhydride
CAS No.: 135876-30-1
Chemical Name: 9,9-Bis(3,4-dicarboxyphenyl)fluorene Dianhydride
Synonyms: 9,9-Bis;1,3-Isobenzofurandione, 5,5;9,9-Bis(3,4-dicarboxyphenyl)fluorene Dianhydride;9,9-Bis(3,4-dicarboxyphenyl) fluorine Dianhydride;(BPAF）9,9-Bis(3,4-dicarboxyphenyl)fluorene Dianhydride;5,5'-(9H-Fluorene-9,9-diyl)bis(2-benzofuran-1,3-dione);9,9-Bis(3,4-dicarboxyphenyl)fluorene Dianhydride (BPAF);1,3-Isobenzofurandione, 5,5'-(9H-fluoren-9-ylidene)bis-;5,5'-(9H-fluorene-9,9-diyl)bis(isobenzofuran-1,3-dione);9,9-Bis(3,4-dicarboxyphenyl) fluorine Dianhydride (BPAF)
CBNumber: CB13191782
Molecular Formula: C29H14O6
Formula Weight: 458.42
MOL File: 135876-30-1.mol

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9,9-Bis(3,4-dicarboxyphenyl)fluorene Dianhydride Property

Melting point:: 269 °C
Boiling point:: 687.9±55.0 °C(Predicted)
Density: 1.521±0.06 g/cm3(Predicted)
form: powder to crystal
color: White to Almost white
InChI: InChI=1S/C29H14O6/c30-25-19-11-9-15(13-21(19)27(32)34-25)29(16-10-12-20-22(14-16)28(33)35-26(20)31)23-7-3-1-5-17(23)18-6-2-4-8-24(18)29/h1-14H
InChIKey: FMACFWAQBPYRFO-UHFFFAOYSA-N
SMILES: C1(C2C=CC3C(=O)OC(=O)C=3C=2)(C2C=CC3C(=O)OC(=O)C=3C=2)C2=C(C=CC=C2)C2=C1C=CC=C2
CAS DataBase Reference: 135876-30-1

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Safety

HS Code: 2932990090

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P280Wear protective gloves/protective clothing/eye protection/face protection.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

TCI Chemical

Product number: F1192
Product name: 9,9-Bis(3,4-dicarboxyphenyl)fluorene Dianhydride
Packaging: 5G
Price: $87
Updated: 2026/04/30

TCI Chemical

Product number: F1192
Product name: 9,9-Bis(3,4-dicarboxyphenyl)fluorene Dianhydride
Packaging: 25G
Price: $307
Updated: 2026/04/30

AK Scientific

Product number: 6813CV
Product name: 1,3-Isobenzofurandione,5,5'-(9H-fluoren-9-ylidene)bis-
Packaging: 25g
Price: $588
Updated: 2021/12/16

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9,9-Bis(3,4-dicarboxyphenyl)fluorene Dianhydride Chemical Properties,Usage,Production

Description

9,9-Bis(3,4-dicarboxyphenyl)fluorene Dianhydride is a dianhydride that is used in the production of polymers. It has a melting point of about 240°C and can be used as a catalyst for the thermal oxidation of aromatic hydrocarbons. 9,9-Bis(3,4-dicarboxyphenyl)fluorene Dianhydride is also a crystallization agent for organic compounds and can be used as an oxidizing agent in the process of dehydrating crystals. The reaction product of 9,9-Bis(3,4-dicarboxyphenyl)fluorene Dianhydride is epoxy resin.

Chemical Properties

white to almost white powder to crystal

Uses

Used in Polyimide Monomer

Application

9,9-Bis(3,4-dicarboxyphenyl)fluorene Dianhydride (BPAF) can be used in the preparation of new imine oligomers and thermosets. The BPAF-derived imide oligomers exhibited improved organic solvents solubility and higher melt viscosity compared to those based on 2,3,3′,4′-biphenyltetracarboxylic dianhydride (3,4′-BPDA), due to their bulky, twisted, and sterically hindered cardo architectures. The imide oligomers under pressure were converted into thermosets by the thermal crosslinking of phenylethynyl at 370 °C for 2 h. The BPAF-derived thermosets exhibited much higher glass transition temperature (Tg) (＞ 404 °C), 5% weight-loss temperature (T5%) (＞ 549 °C) in an air environment, and more excellent high-frequency dielectric properties from 30 to 45 GHz (dielectric constant as low as 2.85 and dielectric loss factor as low as 0.0037) while possessing comparable or even better mechanical properties relative to the 3,4′-BPDA-derived polymers. Therefore, these polymers based on BPAF may have potential applications as matrix resins for heat-resistant, structural and functional composites^[1].

References

[1] XIANGSHENG MENG. High performance imide oligomers and thermosets derived from 9,9-bis (3,4-dicarboxyphenyl)fluorene dianhydride[J]. Polymer, 2023. DOI:10.1016/j.polymer.2023.126086.

9,9-Bis(3,4-dicarboxyphenyl)fluorene Dianhydride Preparation Products And Raw materials

Raw materials

Preparation Products

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9,9-Bis(3,4-dicarboxyphenyl)fluorene Dianhydride Suppliers

Americas 1 China 104 Europe 1 India 1 Japan 1 United States 1 Global 109

CHINATECH(TIANJIN) CHEMICAL CO.,LTD.

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View Lastest Price from 9,9-Bis(3,4-dicarboxyphenyl)fluorene Dianhydride manufacturers

HANGZHOU HAILAN CHEMICAL CO.,LTD.

Product: 9,9-Bis(3,4-dicarboxyphenyl)fluorene Dianhydride 135876-30-1
Price: US $0.00/kg
Min. Order: 1kg
Purity: 99.5%min
Supply Ability: 20tons
Release date: 2026-03-20

CHINATECH(TIANJIN) CHEMICAL CO.,LTD.

Product: 9,9-Bis(3,4-dicarboxyphenyl) fluorine Dianhydride (BPAF) 135876-30-1
Price: US $0.00-0.00/Kg
Min. Order: 1Kg
Purity: ≥99.5%
Supply Ability: 100KG
Release date: 2025-10-27

Shaanxi Didu New Materials Co. Ltd

Product: 9,9-Bis(3,4-dicarboxyphenyl)fluorene Dianhydride 135876-30-1
Price: US $1.50/g
Min. Order: 1g
Purity: 99.0% Min
Supply Ability: 10 Tons
Release date: 2025-06-24

135876-30-1, 9,9-Bis(3,4-dicarboxyphenyl)fluorene DianhydrideRelated Search:

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9,9-Bis(3,4-dicarboxyphenyl) fluorine Dianhydride

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B865418 9,9-Bis(3,4-dicarboxyphenyl)fluorene Dianhydride,≥98%

9,9-Bis

135876-30-1

35876-30-1

C29H14O6