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4,5-Dichlorophthalonitrile

Also known as: 1,2-Dichloro-4,5-dicyanobenzene, 4,5-Dichlorobenzene-1,2-dicarbonitrile, 4,5-Dicyano-1,2-dichlorobenzene, 4,5-Dichlorophthalodinitrile, 1,2-Benzenedicarbonitrile, 4,5-dichloro-

4,5-Dichlorophthalonitrile (CAS 139152-08-2) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8H2Cl2N2 and a molecular weight of 197.021 g/mol. Key properties include a melting point of 180-184ºC(lit.), a boiling point of 312.4±42.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 141.1±22.1 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H312 — Harmful in contact with skin and H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
139152-08-2
Jingsj CID
J-24634-4
Molecular Formula
C8H2Cl2N2
Molecular Weight
197.021 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point180-184ºC(lit.)
Boiling Point312.4±42.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point141.1±22.1 °C
Exact Mass195.959503
PSA47.58000
LogP2.23
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.604

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed
  • H312 — Harmful in contact with skin
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H332 — Harmful if inhaled
  • H335 — May cause respiratory irritation

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 4,5-Dichlorophthalonitrile?

The CAS number of 4,5-Dichlorophthalonitrile is 139152-08-2.

What are the molecular formula and molecular weight of 4,5-Dichlorophthalonitrile?

4,5-Dichlorophthalonitrile has molecular formula C8H2Cl2N2 and molecular weight 197.021 g/mol.

Is 4,5-Dichlorophthalonitrile hazardous?

4,5-Dichlorophthalonitrile has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H312 — Harmful in contact with skin; H315 — Causes skin irritation.

What are the upstream and downstream products of 4,5-Dichlorophthalonitrile?

For 4,5-Dichlorophthalonitrile, Upstream Products: 4,5-Dichlorophthalamide, 4,5-dichlorophthalic anhydride, 4,5-Dichlorophthalic acid.

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

Last updated:

How to cite: Jingsj. "4,5-Dichlorophthalonitrile (CAS 139152-08-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-24634-4 (accessed 2026-11-09).

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