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Home/Compounds/Industrial Chemical/Phthalimide
C8H5NO2
147.13 g/mol
Industrial Chemical

Isoindole-1,3-dione

CAS85-41-6EC201-603-3
Category
Industrial Chemical
Compound Class
Amide
Primary Use
Fungicide and chemical intermediate

Isoindole-1,3-dione, also known as phthalimide, is a chemical compound characterized by an aromatic ring fused to a cyclic imide group. It is primarily used as a fungicide and as a chemical intermediate in organic synthesis.

Production of phthalocyanine dyesSynthesis of primary amines and amino acidsManufacture of the fungicide folpet

Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.

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Related Compounds

ReferenceSame Category

Hexahydrophthalic anhydride

CAS85-42-7

curing agent for epoxy resins

ReferenceSame Category

3a,4,7,7a-tetrahydroisobenzofuran-1,3-dione

CAS85-43-8

Intermediate for alkyds, polyesters, plasticizers

ReferenceSame Category

Phthalic anhydride

CAS85-44-9

Manufacture of artificial resins

ReferenceSame Category

4,4'-butylidenebis(2-(1,1-dimethylethyl)-5-methyl-phenol)

CAS85-60-9

Antioxidant for rubber and latex

Referencestereoisomer of

Potassium phthalimide

CAS1074-82-4

Synthetic intermediate

Safety Reference

Regulatory Compliance1
  • CN Catalogue of Hazardous ChemicalsCNRegulation
    Listed· listed since 2015-05-01Source

Customs Tariff Classification

The international HS code for Isoindole-1,3-dione (CAS 85-41-6) is 2925.19.

HS code (international, 6-digit)

2925.19

EU CN code (8-digit)

2925 19 95

Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.

Identifiers
IUPAC Name

isoindole-1,3-dione

InChIKey

XKJCHHZQLQNZHY-UHFFFAOYSA-N

SMILES

C1=CC=C2C(=C1)C(=O)NC2=O

Synonyms (41)
  • 1,2-Benzenedicarboximide
  • 1,3-Isoindoledione
  • 1,3-Isoindolinedione
  • 1,3-dioxoisoindole
  • 1H-Isoindole-1,3(2H)-dione
  • 1H-isoindol-1,3-(2H)-dione
  • 1h-isoindole-1,3-dione
  • 2-Diazoindan-1,3-dione
  • 2H-benzo[c]azoline-1,3-dione
  • 3-Hydroxy-1H-isoindol-1-one
  • 3-hydroxyisoindol-1-one
  • Benzoimide
  • Ftalimmide
  • Ftalimmide [Italian]
  • Isoindole-1,3-dione
  • O-Phthalimide
  • PHTHALIC ACID,IMIDE
  • Phenylimide
  • Phthalic dicarboximide
  • Phthalimid
  • Phthalimid [German]
  • Phthalimide, PESTANAL(R)
  • Pthalimide
  • folpet TP1
  • hydroxyisoindolone
  • isoindol-1,3-dione
  • isoindole-1,3(2H)-dione
  • isoindoledione
  • isoindoline-1,3-dione
  • o-Phthalic imide
  • phtalimide
  • phthalimide-

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