1-Chloro-3-methyl-2-butene
Also known as: Prenyl chloride, 3,3-Dimethylallyl chloride, 3-Methylcrotyl chloride, 3-Methyl-2-butenyl chloride, Isopentenyl chloride, 1-Chloro-3-methylbut-2-ene, 2-Butene, 1-chloro-3-methyl-
1-Chloro-3-methyl-2-butene (CAS 503-60-6) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C5H9Cl and a molecular weight of 104.578 g/mol. Key properties include a boiling point of 109.0±0.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 13.3±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 503-60-6
- Jingsj CID
- J-39239-2
- Molecular Formula
- C5H9Cl
- Molecular Weight
- 104.578 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 109.0±0.0 °C at 760 mmHg |
|---|---|
| Density | 0.9±0.1 g/cm3 |
| Flash Point | 13.3±0.0 °C |
| Exact Mass | 104.039276 |
| LogP | 2.72 |
| Vapor Pressure | 29.6±0.2 mmHg at 25°C |
| Refractive Index | 1.431 |
GHS Safety & Compliance
- H225 — Highly flammable liquid and vapour
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2903299090 |
|---|---|
| Summary | 2903299090 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 1-Chloro-3-methyl-2-butene?
The CAS number of 1-Chloro-3-methyl-2-butene is 503-60-6.
What are the molecular formula and molecular weight of 1-Chloro-3-methyl-2-butene?
1-Chloro-3-methyl-2-butene has molecular formula C5H9Cl and molecular weight 104.578 g/mol.
Is 1-Chloro-3-methyl-2-butene hazardous?
1-Chloro-3-methyl-2-butene has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H315 — Causes skin irritation; H319 — Causes serious eye irritation.
What are the upstream and downstream products of 1-Chloro-3-methyl-2-butene?
For 1-Chloro-3-methyl-2-butene, Upstream Products: 3-Methyl-2-buten-1-ol, 2-Methyl-3-buten-2-ol, isoprene; Downstream Products: 2-Heptene, 2-methyl-, 3,3-DIMETHYL-1-HEXENE, 2,2-dimethylbutanoic 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. "1-Chloro-3-methyl-2-butene (CAS 503-60-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-39239-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.