Date published: 2026-4-24

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3-(4-Chlorobenzal)phthalide (CAS 20526-97-0)

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Alternate Names:
3-[(4-Chlorophenyl)methylene]-1(3H)-isobenzofuranone; 3-(p-Chlorobenzylidene)phthalide
Application:
3-(4-Chlorobenzal)phthalide is an impurity arising in the synthesis of azelastine
CAS Number:
20526-97-0
Molecular Weight:
256.68
Molecular Formula:
C15H9ClO2
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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3-(4-Chlorobenzal)phthalide is a stilbene-related benzalphthalide derivative with with potential anti-HIV and leishmanicidal activity. It has anxiolytic effects and maybe useful in the development of a non-benzodiazepinic and non-nitrogenated antianxiety agents. An impurity arising in the synthesis of azelastine (A808250).

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

3-(4-Chlorobenzal)phthalide, 1 g

sc-394290
1 g
$360.00