5-Cyanophthalide

CAS Number: 82104-74-3

Molecular Formula: C9H5NO2

About 5-Cyanophthalide

5-Cyanophthalide CAS 82104-74-3 is a cornerstone in the API intermediates market, primarily utilised for the high-yield synthesis of selective serotonin reuptake inhibitors like Escitalopram and Citalopram, where its role as a high purity fine chemicals building block ensures maximum process efficiency. 1,3-Dihydro-1-o...

5-Cyanophthalide Specifications

CAS Number

82104-74-3

Molecular Formula

C9H5NO2

Molecular Weight

159.14 g/mol

IUPAC Name

1-Oxo-1,3-dihydroisobenzofuran-5-carbonitrile

Canonical SMILES

CC12CCCC1C3C(CC2)C4(CCC(CC4CC3O)O)C

InChI Key

XEEGWTLAFIZLSF-UHFFFAOYSA-N

CAS Number

82104-74-3

Molecular Formula

C9H5NO2

Molecular Weight

159.14 g/mol

IUPAC Name

1-Oxo-1,3-dihydroisobenzofuran-5-carbonitrile

Canonical SMILES

CC12CCCC1C3C(CC2)C4(CCC(CC4CC3O)O)C

InChI Key

XEEGWTLAFIZLSF-UHFFFAOYSA-N

Molecular Weight

159.14 g/mol

Physical appearance

White to almost white powder to crystal

Pharmaceutical Intermediate

A key building block utilized in the large-scale industrial synthesis of selective serotonin reuptake inhibitors (SSRIs) such as citalopram and escitalopram for the treatment of depression and anxiety disorders

Organic Synthesis Building Block

A versatile heterocyclic intermediate used in academic and industrial research for the development of complex bioactive molecules, fine chemicals, and functional materials with unique thermal or optical properties

Agrochemical Intermediate

A functionalized phthalide derivative employed in the formulation of specialized pesticides and herbicides to enhance crop protection and agricultural yield

Fluorescent Dye Precursor

A reactive starting material used in the production of fluorescent dyes and identification standards essential for biological imaging, diagnostics, and pharmaceutical quality control applications.