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trans-1,4-Dichloro-2-butene

Also known as: (E)-1,4-Dichloro-2-butene, 1,4-Dichloro-trans-2-butene, trans-1,4-Dichlorobut-2-ene, trans-1,4-Dichloro-2-butylene

trans-1,4-Dichloro-2-butene (CAS 110-57-6) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C4H6Cl2 and a molecular weight of 124.996 g/mol. Key properties include a melting point of 1-3ºC(lit.), a boiling point of 155.5±0.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 54.4±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H226 — Flammable liquid and vapour, H301 — Toxic if swallowed and H312 — Harmful in contact with skin. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
110-57-6
Jingsj CID
J-22955-0
Molecular Formula
C4H6Cl2
Molecular Weight
124.996 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point1-3ºC(lit.)
Boiling Point155.5±0.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point54.4±0.0 °C
Exact Mass123.984657
LogP1.97
Vapor Pressure3.9±0.2 mmHg at 25°C
Refractive Index1.459

GHS Safety & Compliance

Flammable / Corrosion / Acute ToxicitySignal word: Danger
  • H226 — Flammable liquid and vapour
  • H301 — Toxic if swallowed
  • H312 — Harmful in contact with skin
  • H314 — Causes severe skin burns and eye damage
  • H330 — Fatal if inhaled

Customs & Trade Information

HS Code2903299090
Summary2903299090 other unsaturated chlorinated derivatives of acyclic hydrocarbons。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of trans-1,4-Dichloro-2-butene?

The CAS number of trans-1,4-Dichloro-2-butene is 110-57-6.

What are the molecular formula and molecular weight of trans-1,4-Dichloro-2-butene?

trans-1,4-Dichloro-2-butene has molecular formula C4H6Cl2 and molecular weight 124.996 g/mol.

Is trans-1,4-Dichloro-2-butene hazardous?

trans-1,4-Dichloro-2-butene has GHS signal word Danger and hazard statements H226 — Flammable liquid and vapour; H301 — Toxic if swallowed; H312 — Harmful in contact with skin.

What are the upstream and downstream products of trans-1,4-Dichloro-2-butene?

For trans-1,4-Dichloro-2-butene, Upstream Products: butadiene, cis-1,4-Dichloro-2-butene, Methanol; Downstream Products: N,N,N',N'-Tetramethyl-1,4-butanediamine, 3-Butene-1,2-diol, trans-2-Butene-1,4-diol.

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

Last updated:

How to cite: Jingsj. "trans-1,4-Dichloro-2-butene (CAS 110-57-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-22955-0 (accessed 2026-11-09).

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