2-Chlorostyrene
Also known as: 1-chloro-2-ethenylbenzene, 1-Chloro-2-vinylbenzene, o-Chlorostyrene, ortho-Chlorostyrene, (2-chlorophenyl)ethylene, 2-chloro(vinyl)benzene, 2-Cl-styrene, Styrene, o-chloro-, Benzene, 1-chloro-2-ethenyl-, 2-CHLOROSTYRENE , STABILIZED WITH 0.1% 4-TERT-BUTYLCATECHOL, 2-CHLOROSTYRENE Stabilised with 0.1% 4-tert-butylcatechol, 2-Chlorostyrene, stabilized, 99%, chloro-styrene, Stryene,o-chloro, MFCD00000567, EINECS 218-026-8
2-Chlorostyrene (CAS 2039-87-4) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8H7Cl and a molecular weight of 138.59400 g/mol. Key properties include a melting point of -63.1 °C, a boiling point of 58-60 °C7 mm Hg(lit.), a density of 1.08 g/mL at 25 °C(lit.) and a flash point of 58.9 °C. It is classified under GHS with signal word Danger and hazard statements H226 — Flammable liquid and vapour, H332 — Harmful if inhaled and H350 — May cause cancer. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.
- CAS No.
- 2039-87-4
- Jingsj CID
- J-1525212-7
- Molecular Formula
- C8H7Cl
- Molecular Weight
- 138.59400 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 11/2/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -63.1 °C |
|---|---|
| Boiling Point | 58-60 °C7 mm Hg(lit.) |
| Density | 1.08 g/mL at 25 °C(lit.) |
| Flash Point | 58.9 °C |
| Exact Mass | 138.02400 |
| LogP | 2.98300 |
| Refractive Index | n20/D 1.565(lit.) |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
- H332 — Harmful if inhaled
- H350 — May cause cancer
Customs & Trade Information
| HS Code | 2903999090 |
|---|---|
| Summary | 2903999090 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-Chlorostyrene?
The CAS number of 2-Chlorostyrene is 2039-87-4.
What are the molecular formula and molecular weight of 2-Chlorostyrene?
2-Chlorostyrene has molecular formula C8H7Cl and molecular weight 138.59400 g/mol.
Is 2-Chlorostyrene hazardous?
2-Chlorostyrene has GHS signal word Danger and hazard statements H226 — Flammable liquid and vapour; H332 — Harmful if inhaled; H350 — May cause cancer.
What are the upstream and downstream products of 2-Chlorostyrene?
For 2-Chlorostyrene, Upstream Products: 1-Chloro-2-iodobenzene, 3-tert-Butylpyrocatechol, Potassium tert-butoxide; Downstream Products: 2-Vinylaniline, (2-Chlorophenyl)acetaldehyde, 2-Chlorobenzaldehyde.
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-Chlorostyrene (CAS 2039-87-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1525212-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.