Dibutyl disulfide
Also known as: Butyl disulfide, Di-n-butyl disulfide, n-Butyl disulfide, 1-(Butyldisulfanyl)butane, 5,6-Dithiadecane, 1-Butyldisulfide, Butyldisulphide, Dibutyl perdisulfide, Dibutyl persulfide, Disulfide, dibutyl, Normal-butyl disulfide
Dibutyl disulfide (CAS 629-45-8) is a compound in the Ethers category listed in the Jingsj chemical database. It has the molecular formula C8H18S2 and a molecular weight of 178.359 g/mol. Key properties include a melting point of −94 °C(lit.), a boiling point of 226.0±0.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 93.3±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 629-45-8
- Jingsj CID
- J-1990757-8
- Molecular Formula
- C8H18S2
- Molecular Weight
- 178.359 g/mol
- Category
- Ethers
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | −94 °C(lit.) |
|---|---|
| Boiling Point | 226.0±0.0 °C at 760 mmHg |
| Density | 0.9±0.1 g/cm3 |
| Flash Point | 93.3±0.0 °C |
| Exact Mass | 178.084991 |
| PSA | 50.60000 |
| LogP | 4.96 |
| Vapor Pressure | 0.1±0.4 mmHg at 25°C |
| Refractive Index | 1.496 |
| Additional Property | Immiscible |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 29309070 |
|---|
Frequently Asked Questions
What is the CAS number of Dibutyl disulfide?
The CAS number of Dibutyl disulfide is 629-45-8.
What are the molecular formula and molecular weight of Dibutyl disulfide?
Dibutyl disulfide has molecular formula C8H18S2 and molecular weight 178.359 g/mol.
Is Dibutyl disulfide hazardous?
Dibutyl disulfide has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Dibutyl disulfide (CAS 629-45-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1990757-8 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.