Date published: 2026-5-1

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Diphenic anhydride (CAS 6050-13-1)

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Alternate Names:
2,2′-Bibenzoic Anhydride; 2,2′-Biphenyldicarboxylic Anhydride
CAS Number:
6050-13-1
Molecular Weight:
224.22
Molecular Formula:
C14H8O3
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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Diphenic anhydride (DPA) is a versatile reagent used in many organic synthesis processes, such as the synthesis of polymers. Its mechanism of action is based on the fact that it can act as a catalyst, allowing the reaction of two molecules to occur. Diphenic anhydride is primarily used in the synthesis of phthalate esters, which act as plasticizers in the production of polyvinyl chloride (PVC). These plasticizers increase the flexibility, transparency, and durability of PVC products. Additionally, it is used in the production of unsaturated polyester resins, dyes, and pigments. Furthermore, Diphenic anhydride has been found to have an inhibitory effect on the activity of enzymes involved in the production of polyunsaturated fatty acids.


Diphenic anhydride (CAS 6050-13-1) References

  1. Characterization of the alcoholic fraction of vegetable oils by derivatization with diphenic anhydride followed by high-performance liquid chromatography with spectrophotometric and mass spectrometric detection.  |  Lerma-García, MJ., et al. 2009. J Chromatogr A. 1216: 230-6. PMID: 19081103
  2. Determination of fatty alcohol ethoxylates with diphenic anhydride derivatization and liquid chromatography with spectrophotometric detection: a comparative study with other anhydrides.  |  Micó-Tormos, A., et al. 2009. J Chromatogr A. 1216: 3023-30. PMID: 19232414
  3. Single-pump bi-dimensional LC applied to the characterization of derivatized fatty alcohol ethoxylates.  |  Micó-Tormos, A., et al. 2010. J Sep Sci. 33: 1398-404. PMID: 20155751
  4. Design, synthesis, and insecticidal activity evaluation of piperine derivatives.  |  Zhang, C., et al. 2022. Front Chem. 10: 973630. PMID: 35958231
  5. Sensitive enantiomeric separation of aliphatic and aromatic amines using aromatic anhydrides as nonchiral derivatizing agents.  |  Pawlowska, M., et al. 1994. J Chromatogr A. 666: 485-91. PMID: 7802865

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Diphenic anhydride, 5 g

sc-278994
5 g
$156.00