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Tetrachloroterephthalonitrile

Also known as: 2,3,5,6-Tetrachloroterephthalonitrile, p-Tetrachlorophthalodinitrile, 1,4-Dicyano-2,3,5,6-tetrachlorobenzene, Tetrachloro-terephthalodinitrile, Perchloroterephthalonitrile, p-Phthalodinitrile, tetrachloro-, tetrachloro-p-dicyanobenzene

Tetrachloroterephthalonitrile (CAS 1897-41-2) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8Cl4N2 and a molecular weight of 265.911 g/mol. Key properties include a melting point of 308-312 °C(lit.), a boiling point of 370.1±42.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 166.8±22.1 °C. It is classified under GHS with signal word Warning and hazard statements H317 — May cause an allergic skin reaction and H410 — Very toxic to aquatic life with long lasting effects. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1897-41-2
Jingsj CID
J-1104322-4
Molecular Formula
C8Cl4N2
Molecular Weight
265.911 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point308-312 °C(lit.)
Boiling Point370.1±42.0 °C at 760 mmHg
Density1.7±0.1 g/cm3
Flash Point166.8±22.1 °C
Exact Mass263.881561
PSA47.58000
LogP3.24
Vapor Pressure0.0±0.8 mmHg at 25°C
Refractive Index1.633

GHS Safety & Compliance

Irritant / Environmental HazardSignal word: Warning
  • H317 — May cause an allergic skin reaction
  • H410 — Very toxic to aquatic life with long lasting effects

Customs & Trade Information

HS Code2926909090
SummaryHS:2926909090 other nitrile-function compounds VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Tetrachloroterephthalonitrile?

The CAS number of Tetrachloroterephthalonitrile is 1897-41-2.

What are the molecular formula and molecular weight of Tetrachloroterephthalonitrile?

Tetrachloroterephthalonitrile has molecular formula C8Cl4N2 and molecular weight 265.911 g/mol.

Is Tetrachloroterephthalonitrile hazardous?

Tetrachloroterephthalonitrile has GHS signal word Warning and hazard statements H317 — May cause an allergic skin reaction; H410 — Very toxic to aquatic life with long lasting effects.

What are the upstream and downstream products of Tetrachloroterephthalonitrile?

For Tetrachloroterephthalonitrile, Upstream Products: 1,2,4,5-tetrachloro-3,6-dinitrobenzene, Cetrimonium bromide, 2,3,5,6-Tetrachloroterephthaloyl chloride; Downstream Products: 2,3,5,6-Tetrafluoro-1,4-benzenedimethanol, 2,3,5,6-Tetrafluoroterephthalic acid, 2,3,5,6-Tetrafluoroterephthalaldehyde.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Tetrachloroterephthalonitrile (CAS 1897-41-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1104322-4 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.