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2,4'-DDE

Also known as: o,p'-DDE, 2-(2-Chlorophenyl)-2-(4-chlorophenyl)-1,1-dichloroethene, 1-Chloro-2-[2,2-dichloro-1-(4-chlorophenyl)ethenyl]benzene, 2,2-(2-chlorophenyl-4’-chlorophenyl)-1,1-dichloroethene, Benzene, 1-chloro-2-[2,2-dichloro-1-(4-chlorophenyl)ethenyl]-, MFCD00036122, EINECS 222-318-0

2,4'-DDE (CAS 3424-82-6) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C14H8Cl4 and a molecular weight of 318.025 g/mol. Key properties include a melting point of 78.32°C, a boiling point of 380.6±37.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 181.8±23.9 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H301 — Toxic if swallowed and H311 — Toxic in contact with skin. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3424-82-6
Jingsj CID
J-13696-9
Molecular Formula
C14H8Cl4
Molecular Weight
318.025 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point78.32°C
Boiling Point380.6±37.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point181.8±23.9 °C
Exact Mass315.938019
LogP6.22
Vapor Pressure0.0±0.8 mmHg at 25°C
Refractive Index1.622

GHS Safety & Compliance

Flammable / Acute Toxicity / Health HazardSignal word: Danger
  • H225 — Highly flammable liquid and vapour
  • H301 — Toxic if swallowed
  • H311 — Toxic in contact with skin
  • H331 — Toxic if inhaled
  • H370 — Causes damage to organs

Customs & Trade Information

HS Code2903999090
Summary2903999090 halogenated derivatives of aromatic hydrocarbons VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 2,4'-DDE?

The CAS number of 2,4'-DDE is 3424-82-6.

What are the molecular formula and molecular weight of 2,4'-DDE?

2,4'-DDE has molecular formula C14H8Cl4 and molecular weight 318.025 g/mol.

Is 2,4'-DDE hazardous?

2,4'-DDE has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H301 — Toxic if swallowed; H311 — Toxic in contact with skin.

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

Last updated:

How to cite: Jingsj. "2,4'-DDE (CAS 3424-82-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-13696-9 (accessed 2026-11-09).

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