Diacetylene
Also known as: 1,3-Butadiyne, 1,3-Butanediyne, 1，3-Butadiyne, Butane-1,3-diyne, EINECS 207-303-9, biacetylene, buta-1,3-diyne, buta-1,3-diеne, butadiyne
Diacetylene (CAS 460-12-8) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C4H2 and a molecular weight of 50.05870 g/mol. Key properties include a melting point of -36ºC, a boiling point of 10.3ºC at 760mmHg and a density of 0.806g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 460-12-8
- Jingsj CID
- J-1325739-0
- Molecular Formula
- C4H2
- Molecular Weight
- 50.05870 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -36ºC |
|---|---|
| Boiling Point | 10.3ºC at 760mmHg |
| Density | 0.806g/cm3 |
| Exact Mass | 50.01570 |
| LogP | 0.25280 |
| Vapor Pressure | 1270mmHg at 25°C |
| Refractive Index | 1.436 |
| Stability | Stability Highly flammable. Readily forms explosive mixtures with air. May form peroxides in storage. |
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 Diacetylene?
The CAS number of Diacetylene is 460-12-8.
What are the molecular formula and molecular weight of Diacetylene?
Diacetylene has molecular formula C4H2 and molecular weight 50.05870 g/mol.
What are the upstream and downstream products of Diacetylene?
For Diacetylene, Downstream Products: Cyclohexanol, 1-butyl-, 1-buten-3-yne.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Diacetylene (CAS 460-12-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1325739-0 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.