5-Fluoro-1,3-isobenzofurandione

Product Name: 5-Fluoro-1,3-isobenzofurandione
CAS No.: 319-03-9
Chemical Name: 5-Fluoro-1,3-isobenzofurandione
Synonyms: 4-FLUOROPHTHALIC ANHYDRIDE;4-FPA;4-Fluorophthalic;4-Fluorophthalicanhydride97%;4-FluorophthalicAnhydride>5-fluoro-3-isobenzofurandione;4-Fluorophthalicanhydride,98%;4-Fluor-phthalsaeure-anhydrid;4-Fluorophthalic anhydride 97%;4-Fluorophthalic anhydride,99%
CBNumber: CB5204430
Molecular Formula: C8H3FO3
Formula Weight: 166.11
MOL File: 319-03-9.mol

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5-Fluoro-1,3-isobenzofurandione Property

Melting point:: 75-79 °C (lit.)
Boiling point:: 148°C 20mm
Density: 1.55
Flash point:: >93°C
storage temp.: Inert atmosphere,Store in freezer, under -20°C
solubility: Soluble in sodium hydroxide.
form: powder to crystal
color: White to Almost white
Sensitive: Moisture Sensitive
BRN: 131281
InChI: InChI=1S/C8H3FO3/c9-4-1-2-5-6(3-4)8(11)12-7(5)10/h1-3H
InChIKey: XVMKZAAFVWXIII-UHFFFAOYSA-N
SMILES: C1(=O)C2=C(C=C(F)C=C2)C(=O)O1
CAS DataBase Reference: 319-03-9(CAS DataBase Reference)
EPA Substance Registry System: 1,3-Isobenzofurandione, 5-fluoro- (319-03-9)

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Safety

Hazard Codes: Xn,Xi
Risk Statements: 22-36/37/38-42/43
Safety Statements: 26-36/37/39-45
RIDADR: UN 2811 6.1/PG 3
WGK Germany: 2
Hazard Note: Irritant
TSCA: Yes
HazardClass: IRRITANT, MOISTURE SENSITIVE
PackingGroup: Ⅲ
HS Code: 29173990

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H301Toxic if swalloed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P302+P352IF ON SKIN: wash with plenty of soap and water.

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

Sigma-Aldrich

Product number: 641375
Product name: 4-Fluorophthalic anhydride
Purity: 97%
Packaging: 5g
Price: $79.8
Updated: 2025/07/31

Sigma-Aldrich

Product number: 641375
Product name: 4-Fluorophthalic anhydride
Purity: 97%
Packaging: 25g
Price: $312.9
Updated: 2025/07/31

TCI Chemical

Product number: F0322
Product name: 4-Fluorophthalic Anhydride
Purity: >98.0%(GC)
Packaging: 5g
Price: $114
Updated: 2025/07/31

Apolloscientific

Product number: PC4179R
Product name: 4-Fluorophthalic Anhydride
Purity: 97%
Packaging: 100g
Price: $475
Updated: 2021/12/16

American Custom Chemicals Corporation

Product number: HCH0023875
Product name: 4-FLUOROPHTHALIC ANHYDRIDE
Purity: 95.00%
Packaging: 1G
Price: $592.05
Updated: 2021/12/16

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5-Fluoro-1,3-isobenzofurandione Chemical Properties,Usage,Production

Chemical Properties

white to light yellow crystal powder

Uses

4-Fluorophthalic anhydride is used in the preparation of 5-fluoro-2-pyridin-3-ylmethyl-isoindole-1,3-dione by reacting with C-pyridin-3-yl-methylamine.

Uses

4-Fluorophthalic anhydride can be used as a reactant to prepare:

4-amino substituted phthalimides applicable as potential fluorescent probes and fluorescent bioactive compounds.
4,4′-bis(4-fluorophthalimido)diphenyl ether monomer, which is used in the synthesis of cardo polymers via nucleophilic substitution polymerization reaction.
Asymmetric polyimides by a solution polycondensation reaction.

General Description

4-Fluorophthalic anhydride is a fluorinated building block commonly used in chemical synthesis for the preparation of polyimide, pesticides, herbicides, and fungicides. It can be synthesized by treating 4-chlorophthalic anhydride with potassium fluoride.

5-Fluoro-1,3-isobenzofurandione Preparation Products And Raw materials

Raw materials

Preparation Products

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5-Fluoro-1,3-isobenzofurandione Suppliers

Americas 1 Belgium 2 China 209 Europe 1 France 2 Germany 5 India 5 Italy 1 Japan 3 Russia 1 Slovakia 1 South Korea 1 Switzerland 3 United Kingdom 19 United States 33 Global 287

Shandong XuanHong Biopharmaceutical Co., Ltd.

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J & K SCIENTIFIC LTD.

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Alfa Aesar

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TCI (Shanghai) Development Co., Ltd.

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Wuhan Chemwish Technology Co., Ltd

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Capot Chemical Co., Ltd

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Shanghai Sinch Parmaceuticals Tech. Co. Ltd.

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View Lastest Price from 5-Fluoro-1,3-isobenzofurandione manufacturers

ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD

Product: 4-Fluorophthalic anhydride 319-03-9
Price: US $2.20-8.80/kg
Min. Order: 1kg
Purity: 99%
Supply Ability: 100kg
Release date: 2025-06-17

Longyan Tianhua Biological Technology Co., Ltd

Product: 5-Fluoro-1,3-isobenzofurandione 319-03-9
Price: US $150.00/Kg/Bag
Min. Order: 25Kg/Bag
Purity: 99%
Supply Ability: 20 Tons
Release date: 2020-11-13

Career Henan Chemical Co

Product: 5-Fluoro-1,3-isobenzofurandione 319-03-9
Price: US $1.00/KG
Min. Order: 1g
Purity: 99.0%
Supply Ability: 100kg
Release date: 2020-01-10

319-03-9, 5-Fluoro-1,3-isobenzofurandioneRelated Search:

Phthalic acid 3-Nitrophthalic anhydride Phthalic anhydride Biphenyl-4,4'-dicarboxylic acid 4-Fluoro-1,1'-biphenyl 4-Fluorophthalic acid 4-Fluoro-1,3-isobenzofurandione 3,6-DIFLUOROPHTHALIC ANHYDRIDE AKOS 92366 5-Fluoro-1,3-isobenzofurandione 4,5-DIFLUOROPHTHALIC ANHYDRIDE Tetrafluorophthalic anhydride AKOS 92364

5-fluoro-3-isobenzofurandione

5-Fluoro-isobenzofuran-1,3-dione

5-FLUORO-BENZO[C]FURAN-1,3-DIONE

5-Fluoro-1,3-isobenzofurandione

5-FLUORO-2-BENZOFURAN-1,3-DIONE

4-FLUOROPHTHALIC ACID ANHYDRIDE

4-FLUOROPHTHALIC ANHYDRIDE

4-FLUOROBENZENE-1,2-DICARBOXYLIC ANHYDRIDE

4-Fluorophthalic

4-Fluorophthalic anhydride 97%

4-Fluorophthalicanhydride97%

4-FPA

1,3-Isobenzofurandione, 5-fluoro-

5-fFuoro-2-benzofuran-1,3-dione

4-Fluorophthalic anhydride,99%

4-Fluorophthalicanhydride,98%

4-FLUOROBENZENE-1,2-DICARBOXYLIC ANH

5-Fluoro-2-benzofuran-1,3-dione, 5-Fluorobenzo[c]furan-1,3-dione, 5-Fluoroisobenzofuran-1,3-dione

5-fluoro-1,3-dihydro-2-benzofuran-1,3-dione

4-FluorophthalicAnhydride&gt

4-Fluor-phthalsaeure-anhydrid

4-Fluorophthalic anhydride - [F4888]

319-03-9

316-03-9

C8H3FO3

C8H3FNO3

Organic Building Blocks

Carbonyl Compounds

Carboxylic Acid Anhydrides

Building Blocks

Heterocycles

Carbonyl Compounds

Carboxylic Acid Anhydrides

Organic Building Blocks

Phthalic Acids, Esters and Derivatives

API intermediates