5-cyano-1-pentyne
Also known as: 5-HEXYNENITRILE, 5-HEXYNNITRILE, hex-5-ynenitrile, 5-Hexyne-1-nitrile, 5-Cyanopentyne
5-cyano-1-pentyne (CAS 14918-21-9) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C6H7N and a molecular weight of 93.12650 g/mol. Key properties include a boiling point of 115-117 °C(lit.), a density of 0.889 g/mL at 25 °C(lit.) and a flash point of 42.2 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour, H302 — Harmful if swallowed and H312 — Harmful in contact with skin. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.
- CAS No.
- 14918-21-9
- Jingsj CID
- J-29361-1
- Molecular Formula
- C6H7N
- Molecular Weight
- 93.12650 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 11/2/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 115-117 °C(lit.) |
|---|---|
| Density | 0.889 g/mL at 25 °C(lit.) |
| Flash Point | 42.2 °C |
| Exact Mass | 93.05780 |
| PSA | 23.79000 |
| LogP | 1.31348 |
| Vapor Pressure | 3.48mmHg at 25°C |
| Refractive Index | n20/D 1.44(lit.) |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
- H302 — Harmful if swallowed
- H312 — Harmful in contact with skin
- H332 — Harmful if inhaled
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
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 5-cyano-1-pentyne?
The CAS number of 5-cyano-1-pentyne is 14918-21-9.
What are the molecular formula and molecular weight of 5-cyano-1-pentyne?
5-cyano-1-pentyne has molecular formula C6H7N and molecular weight 93.12650 g/mol.
Is 5-cyano-1-pentyne hazardous?
5-cyano-1-pentyne has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour; H302 — Harmful if swallowed; H312 — Harmful in contact with skin.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "5-cyano-1-pentyne (CAS 14918-21-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-29361-1 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.