CAS 18959-30-3: 4,5-Difluorophthalic anhydride
Description:4,5-Difluorophthalic anhydride is a chemical compound characterized by its anhydride functional group derived from phthalic acid, with two fluorine atoms substituted at the 4 and 5 positions of the aromatic ring. This compound typically appears as a white to light yellow solid and is known for its reactivity, particularly in forming polyesters and other polymers through condensation reactions. The presence of fluorine atoms enhances its thermal stability and chemical resistance, making it useful in various industrial applications, including the production of high-performance materials and coatings. Additionally, 4,5-Difluorophthalic anhydride can be utilized in the synthesis of specialty chemicals and pharmaceuticals. It is important to handle this compound with care, as it may pose health hazards if inhaled or if it comes into contact with skin. Proper safety measures, including the use of personal protective equipment, should be observed when working with this substance.
Formula:C8H2F2O3
InChI:InChI=1/C8H2F2O3/c9-5-1-3-4(2-6(5)10)8(12)13-7(3)11/h1-2H
- Synonyms:
- 5,6-Difluoroisobenzofuran-1,3-dione
- 6-Deoxy-6-Fluorohexopyranose
- 5,6-Difluoro-2-Benzofuran-1,3-Dione
Brand | Product data | Purity | Price range | Estimated delivery |
---|---|---|---|---|
![]() | 1,3-Isobenzofurandione, 5,6-difluoro- REF: IN-DA002DSFCAS: 18959-30-3 | 98% | To inquire | Tue 29 Apr 25 |
![]() | 4,5-Difluorophthalic anhydride REF: 54-PC1162CAS: 18959-30-3 | 98+% | 32.00 €~1,664.00 € | Wed 30 Apr 25 |
![]() | 5,6-Difluoroisobenzofuran-1,3-dione REF: 10-F091462CAS: 18959-30-3 | 98.0% | 18.00 €~1,051.00 € | Fri 02 May 25 |
![]() | 4,5-Difluorophthalic anhydride REF: 3D-FD67561CAS: 18959-30-3 | Min. 95% | - - - | Discontinued product |

1,3-Isobenzofurandione, 5,6-difluoro-
Ref: IN-DA002DSF
1g | 39.00 € | ||
5g | 113.00 € | ||
10g | 175.00 € | ||
25g | 284.00 € | ||
100g | To inquire | ||
250mg | 25.00 € |

4,5-Difluorophthalic anhydride
Ref: 54-PC1162
1g | 36.00 € | ||
5g | 106.00 € | ||
25g | 471.00 € | ||
100g | 1,664.00 € | ||
250mg | 32.00 € |

5,6-Difluoroisobenzofuran-1,3-dione
Ref: 10-F091462
1g | 18.00 € | ||
5g | 72.00 € | ||
10g | 127.00 € | ||
25g | 284.00 € | ||
100g | 1,051.00 € | ||
250mg | 24.00 € |

4,5-Difluorophthalic anhydride
Ref: 3D-FD67561
1g | Discontinued | Request information | |
2g | Discontinued | Request information | |
5g | Discontinued | Request information | |
10g | Discontinued | Request information | |
500mg | Discontinued | Request information |