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3-Chloro-2-methyl-1-propene

Also known as: 3-Chloro-2-methylpropene, 3-Chloro-2-methylprop-1-ene, Methallyl chloride, beta-Methylallyl chloride, 1-Propene, 3-chloro-2-methyl-, Chlorure de methallyle, Cloruro di metallile, beta-methylallylchloride, chloruredemethallyle, chloruredemethallyle(french), clorurodimetallile

3-Chloro-2-methyl-1-propene (CAS 563-47-3) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C4H7Cl and a molecular weight of 90.551 g/mol. Key properties include a melting point of -80 °C, a boiling point of 72.4±9.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of -10.0±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H302 — Harmful if swallowed and H332 — Harmful if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
563-47-3
Jingsj CID
J-18615-2
Molecular Formula
C4H7Cl
Molecular Weight
90.551 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point-80 °C
Boiling Point72.4±9.0 °C at 760 mmHg
Density0.9±0.1 g/cm3
Flash Point-10.0±0.0 °C
Exact Mass90.023628
LogP2.20
Additional Property3.12 (vs air)
Vapor Pressure129.6±0.1 mmHg at 25°C
Refractive Index1.410
Additional Property0.5 g/L (20 ºC)

GHS Safety & Compliance

Flammable / Corrosion / Irritant / Environmental HazardSignal word: Danger
  • H225 — Highly flammable liquid and vapour
  • H302 — Harmful if swallowed
  • H332 — Harmful if inhaled
  • H314 — Causes severe skin burns and eye damage
  • H317 — May cause an allergic skin reaction
  • H411 — Toxic to aquatic life with long lasting effects

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 3-Chloro-2-methyl-1-propene?

The CAS number of 3-Chloro-2-methyl-1-propene is 563-47-3.

What are the molecular formula and molecular weight of 3-Chloro-2-methyl-1-propene?

3-Chloro-2-methyl-1-propene has molecular formula C4H7Cl and molecular weight 90.551 g/mol.

Is 3-Chloro-2-methyl-1-propene hazardous?

3-Chloro-2-methyl-1-propene has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H302 — Harmful if swallowed; H332 — Harmful if inhaled.

What are the upstream and downstream products of 3-Chloro-2-methyl-1-propene?

For 3-Chloro-2-methyl-1-propene, Upstream Products: Isobutylene, acetic acid, 1-Methylcyclopropene; Downstream Products: 2-Methyl-3-phenyl-1-propene, Allylbenzene, 3-methyl-3-(4-methylphenyl)butanoic 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. "3-Chloro-2-methyl-1-propene (CAS 563-47-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-18615-2 (accessed 2026-11-09).

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