1-butyne
Also known as: Butyne-1, EINECS 203-451-3, ETHYL ACETYLENE, Ethylacetylene,inhibited, MFCD00039944, UN2452, but-1-en-1,2-diyl, but-1-yne, ethylacetylene
1-butyne (CAS 107-00-6) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C4H6 and a molecular weight of 54.09040 g/mol. Key properties include a melting point of -126°C, a boiling point of 8°C and a density of 0.678. It is classified under GHS with signal word Danger and hazard statements H220 and H280. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 107-00-6
- Jingsj CID
- J-1341529-5
- Molecular Formula
- C4H6
- Molecular Weight
- 54.09040 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -126°C |
|---|---|
| Boiling Point | 8°C |
| Density | 0.678 |
| Exact Mass | 54.04700 |
| LogP | 1.02960 |
| Vapor Pressure | 1390mmHg at 25°C |
| Refractive Index | 1.386 |
GHS Safety & Compliance
- H220
- H280
Customs & Trade Information
| HS Code | 2901299090 |
|---|---|
| Summary | 2901299090 unsaturated acyclic hydrocarbons。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:2.0%。General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 1-butyne?
The CAS number of 1-butyne is 107-00-6.
What are the molecular formula and molecular weight of 1-butyne?
1-butyne has molecular formula C4H6 and molecular weight 54.09040 g/mol.
Is 1-butyne hazardous?
1-butyne has GHS signal word Danger and hazard statements H220; H280.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1-butyne (CAS 107-00-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1341529-5 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.