3-Chlorophenylacetylene
Also known as: 1-Chloro-3-ethynylbenzene, 1-chloro-3-ethynylbenzene, 3-Chloro-1-ethynylbenzene, 3'-Chlorophenylacetylene, 3-CHLORO-1-ETHYNYLBENZENE, 3-CHLOROPHENYLACETYLENE, Benzene, 1-chloro-3-ethynyl-, Benzene, 1-chloro-3-ethynyl- (6CI, 7CI, 8CI, 9CI), MFCD03839984, m-Chlorophenylacetylene
3-Chlorophenylacetylene (CAS 766-83-6) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8H5Cl and a molecular weight of 136.578 g/mol. Key properties include a boiling point of 191.3±23.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 65.0±18.0 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 766-83-6
- Jingsj CID
- J-29144-1
- Molecular Formula
- C8H5Cl
- Molecular Weight
- 136.578 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 191.3±23.0 °C at 760 mmHg |
|---|---|
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 65.0±18.0 °C |
| Exact Mass | 136.007980 |
| LogP | 2.99 |
| Vapor Pressure | 0.7±0.4 mmHg at 25°C |
| Refractive Index | 1.564 |
GHS Safety & Compliance
- H315 — Causes skin irritation
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 3-Chlorophenylacetylene?
The CAS number of 3-Chlorophenylacetylene is 766-83-6.
What are the molecular formula and molecular weight of 3-Chlorophenylacetylene?
3-Chlorophenylacetylene has molecular formula C8H5Cl and molecular weight 136.578 g/mol.
Is 3-Chlorophenylacetylene hazardous?
3-Chlorophenylacetylene has GHS signal word Warning and hazard statements H315 — Causes skin irritation.
What are the upstream and downstream products of 3-Chlorophenylacetylene?
For 3-Chlorophenylacetylene, Upstream Products: 1-Bromo-3-chlorobenzene, 3'-Chloroacetophenone, 1-Chloro-3-iodobenzene; Downstream Products: 2-(3-Chlorophenyl)ethanol, 3'-Chloroacetophenone, 2-Chloro-1-(3-chlorophenyl)ethanone.
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-Chlorophenylacetylene (CAS 766-83-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-29144-1 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.