Dibutyl sulfide
Also known as: n-Dibutyl sulfide, 1,1'-sulfanediyldibutane, 1-(Butylsulfanyl)butane, 1-butylsulfanylbutane, Butane, 1,1'-thiobis-, Dibutyl sulphide, Dibutyl thioether, EINECS 208-870-5, MFCD00009468, Sulfide, n-butyl-, di-n-butyl sulfide, di-n-butylsulfide, n-Butyl sulfide, n-dibutyl sulphide, sulfide, dibutyl, FEMA 2215, BUTYL SULFIDE, 5-Thianonane
Dibutyl sulfide (CAS 544-40-1) is a compound in the Ethers category listed in the Jingsj chemical database. It has the molecular formula C8H18S and a molecular weight of 146.294 g/mol. Key properties include a melting point of −76 °C(lit.), a boiling point of 188.7±8.0 °C at 760 mmHg, a density of 0.8±0.1 g/cm3 and a flash point of 76.7±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.
- 544-40-1
- Jingsj CID
- J-30156-5
- Molecular Formula
- C8H18S
- Molecular Weight
- 146.294 g/mol
- Category
- Ethers
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | −76 °C(lit.) |
|---|---|
| Boiling Point | 188.7±8.0 °C at 760 mmHg |
| Density | 0.8±0.1 g/cm3 |
| Flash Point | 76.7±0.0 °C |
| Exact Mass | 146.112915 |
| PSA | 25.30000 |
| LogP | 4.07 |
| Additional Property | 5.07 (vs air) |
| Vapor Pressure | 0.8±0.3 mmHg at 25°C |
| Refractive Index | 1.452 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2930909090 |
|---|---|
| Summary | 2930909090. other organo-sulphur compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Dibutyl sulfide?
The CAS number of Dibutyl sulfide is 544-40-1.
What are the molecular formula and molecular weight of Dibutyl sulfide?
Dibutyl sulfide has molecular formula C8H18S and molecular weight 146.294 g/mol.
Is Dibutyl sulfide hazardous?
Dibutyl sulfide has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of Dibutyl sulfide?
For Dibutyl sulfide, Upstream Products: 1-Bromobutane, 1-Iodobutane, butanethiol; Downstream Products: 1,4-Dithiane, 1-Bromobutane, Ethanethioic acid, S-butyl ester.
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 sulfide (CAS 544-40-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-30156-5 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.