C8Cl4N2
265.9 g/mol
AgrochemicalDanger
Tetrachloroisophthalonitrile
CAS1897-45-6EC217-588-1
Category
Agrochemical
Compound Class
Aromatic
Primary Use
Broad-spectrum fungicide and pesticide
Tetrachloroisophthalonitrile is a broad-spectrum fungicide and pesticide used in agriculture and industrial applications. Its significance lies in its effectiveness as a biocidal agent for crop protection and material preservation.
Farming (Pesticides)Applying Wood PreservativesWorking with Glues and Adhesives
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.
Restricted or banned substances
Substances on this list are banned or restricted under the named regulation. This page is a compliance reference — verify your obligations under applicable law.
Relevant lists:California Proposition 65
CAS 1897-45-6
Related Compounds
StrongStructure SimilarSimilarity 0.93
Pentachlorobenzonitrile
CAS20925-85-3
agrochemical intermediate
StrongStructure SimilarSimilarity 0.86
Tetrachloroterephthalonitrile
CAS1897-41-2
organic intermediate for pesticides
SimilarStructure SimilarSimilarity 0.80
3,4,5,6-Tetrachlorophthalonitrile
CAS1953-99-7
pharmaceutical intermediate
ReferenceSame Category
2,6-difluorobenzonitrile
CAS1897-52-5
intermediate for insecticide production
ReferenceSame Category
(1E)-N-[(6-Chloropyridin-3-yl)methyl]-N'-cyanoethanimidamide
CAS190604-92-3
neonicotinoid pesticide metabolite
ReferenceSame Category
Paraquat dichloride
CAS1910-42-5
contact herbicide and desiccant
ReferenceSame Category
Atrazine
CAS1912-24-9
Selective herbicide for crop protection
Related Reading
Safety Reference
Danger
H317May cause an allergic skin reaction
H318Causes serious eye damage
H330Fatal if inhaled
H335May cause respiratory irritation
H351Suspected of causing cancer
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects
H319Causes serious eye irritation
H334May cause allergy or asthma symptoms or breathing difficulties if inhaled
H373May cause damage to organs through prolonged or repeated exposure
H361Suspected of damaging fertility or the unborn child
Regulatory Compliance1
- California Proposition 65USRegulation
Customs Tariff Classification
The international HS code for Tetrachloroisophthalonitrile (CAS 1897-45-6) 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
2,4,5,6-tetrachlorobenzene-1,3-dicarbonitrile
InChIKey
CRQQGFGUEAVUIL-UHFFFAOYSA-N
SMILES
C(#N)C1=C(C(=C(C(=C1Cl)Cl)Cl)C#N)Cl
Synonyms (80)
- TCIN
- TCPN
- 1,3-Dicyanotetrachlorobenzene
- Bravo
- Bravo 500
- Bravo 6F
- Bravo 720
- Bravo Ultrex
- Caswell No. 215B
- Chloroalonil
- Chlorothalonil
- Chlorothalonil (Standard)
- Chlorothalonil (TPN)
- Chlorothalonil, PESTANAL(R)
- Chlorthalonil
- Chlorthalonil [German]
- Clorthalonil
- Clorthalonil [German]
- Clortocaf ramato
- Clortosip
- Daconil
- Daconil 1000
- Daconil 2787
- Daconil 2787 W-75 Fungicide
- Daconil 2787 W75
- Daconil Flowable
- Daconil M
- Dacosoil
- Dakoflo
- Dicyanotetrachlorobenzene
- Exotherm
- Exotherm termil
- Faber
- Forturf
- Hortyl
- Nopcocide
- Nopcocide N-96
- Nopcocide N40D & N96
- Nuocide (Salt/Mix)
- Perchloroisophthalonitrile
- Repulse
- Siclor
- Sweep
- Taloberg (Salt/Mix)
- Termil
- Terraclactyl
- Tetrachlorisoftalonitril
- Tetrachloroisophthalonitrile
- Thalonil
- Tpn (pesticide)
- Tripart faber
- Tripart ultrafaber
- Tuffcide (Salt/Mix)
- Vanox
- m-Tcpn
- m-Tetrachlorophthalodinitrile
- m-Tetrachlorophthalonitrile
- meta-TCPN