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Tetrachloroterephthalonitrile (CAS 1897-41-2) | ChemAbout

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Related Compounds

StrongStructure SimilarSimilarity 0.92

Pentachlorobenzonitrile

agrochemical intermediate

StrongStructure SimilarSimilarity 0.86

Chlorothalonil

CAS1897-45-6

Broad-spectrum fungicide and pesticide

SimilarStructure SimilarSimilarity 0.79

3,4,5,6-Tetrachlorophthalonitrile

pharmaceutical intermediate

ReferenceSame Category

2,6-difluorobenzonitrile

intermediate for insecticide production

ReferenceSame Category

(1E)-N-[(6-Chloropyridin-3-yl)methyl]-N'-cyanoethanimidamide

neonicotinoid pesticide metabolite

ReferenceSame Category

Paraquat dichloride

contact herbicide and desiccant

ReferenceSame Category

Atrazine

Selective herbicide for crop protection

Related Reading

Why Does One Chemical Intermediate End Up in Dozens of Pesticides? Inside the Reaction Interface Economy

A single pyridine intermediate feeds four different neonicotinoid insecticides. A single pyrazole acid feeds a whole family of SDHI fungicides. This isn't coincidence — it's the Reaction Interface Economy, the organizing logic behind modern agrochemical R&D and its supply chain.

Sourcing Tetrachloroterephthalonitrile?

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C₈Cl₄N₂

265.9 g/mol

AgrochemicalWarning

Tetrachloroterephthalonitrile

CAS1897-41-2EC629-242-0

Category

Agrochemical

Compound Class

Halocarbon

Primary Use

organic intermediate for pesticides

Tetrachloroterephthalonitrile is a chlorinated aromatic dinitrile compound. It serves primarily as an organic intermediate in the production of certain pesticides.

organic intermediate for pesticide synthesis

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.

Safety Reference

Harmful

Environmental Hazard

Warning

H317May cause an allergic skin reaction

H400Very toxic to aquatic life

H410Very toxic to aquatic life with long lasting effects

Customs Tariff Classification

The international HS code for Tetrachloroterephthalonitrile (CAS 1897-41-2) is 2926.90.

HS code (international, 6-digit)

2926.90

EU CN code (8-digit)

2926 90 70

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

2,3,5,6-tetrachlorobenzene-1,4-dicarbonitrile

InChIKey

TXRVDQMSXQKAPG-UHFFFAOYSA-N

SMILES

C(#N)C1=C(C(=C(C(=C1Cl)Cl)C#N)Cl)Cl

Synonyms (11)

Perchloroterephthalonitrile
Tetrachloro-p-dicyanobenzene
Tetrachloroterephthalonitrile
p-TCPN
p-Tetrachlorophthalodinitrile