Cyanoacetylene
Also known as: 2-Propynenitrile, Propiolonitrile, Cyanoethyne, Ethynyl cyanide, 1-Cyanoethyne, Acetylenecarbonitrile, Propynenitrile, Cyanaethylene
Cyanoacetylene (CAS 1070-71-9) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C3HN and a molecular weight of 51.047 g/mol. Key properties include a boiling point of 42.5±9.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of -30.5±12.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1070-71-9
- Jingsj CID
- J-8610-5
- Molecular Formula
- C3HN
- Molecular Weight
- 51.047 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 42.5±9.0 °C at 760 mmHg |
|---|---|
| Density | 0.9±0.1 g/cm3 |
| Flash Point | -30.5±12.6 °C |
| Exact Mass | 51.010899 |
| PSA | 23.79000 |
| LogP | 0.66 |
| Vapor Pressure | 390.6±0.1 mmHg at 25°C |
| Refractive Index | 1.410 |
Customs & Trade Information
| HS Code | 2926909090 |
|---|---|
| Summary | HS:2926909090 other nitrile-function compounds VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Cyanoacetylene?
The CAS number of Cyanoacetylene is 1070-71-9.
What are the molecular formula and molecular weight of Cyanoacetylene?
Cyanoacetylene has molecular formula C3HN and molecular weight 51.047 g/mol.
What are the upstream and downstream products of Cyanoacetylene?
For Cyanoacetylene, Upstream Products: Propiolamide, Propionamide, Tosyl cyanide; Downstream Products: Terephthalonitrile, Phthalonitrile, Acetylene.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Cyanoacetylene (CAS 1070-71-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-8610-5 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.