3-Chloropropyne
Also known as: Propargyl chloride, 3-Chloro-1-propyne, 3-Chloroprop-1-yne, 1-Chloroprop-2-yne, 2-Propynyl chloride
3-Chloropropyne (CAS 624-65-7) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C3H3Cl and a molecular weight of 74.509 g/mol. Key properties include a melting point of -78ºC, a boiling point of 57.0±0.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 18.9±0.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 624-65-7
- Jingsj CID
- J-1511299-8
- Molecular Formula
- C3H3Cl
- Molecular Weight
- 74.509 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -78ºC |
|---|---|
| Boiling Point | 57.0±0.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 18.9±0.0 °C |
| Exact Mass | 73.992325 |
| LogP | 0.99 |
| Vapor Pressure | 234.7±0.1 mmHg at 25°C |
| Refractive Index | 1.423 |
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 3-Chloropropyne?
The CAS number of 3-Chloropropyne is 624-65-7.
What are the molecular formula and molecular weight of 3-Chloropropyne?
3-Chloropropyne has molecular formula C3H3Cl and molecular weight 74.509 g/mol.
What are the upstream and downstream products of 3-Chloropropyne?
For 3-Chloropropyne, Upstream Products: 3-Bromopropyne, 2-Bromo-3-chloro-1-propene, Phosphorus trichloride; Downstream Products: 1,5-hexadiyne, Propyne, benzene.
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-Chloropropyne (CAS 624-65-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1511299-8 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.