Diisobutyl disulfide

Also known as: Isobutyl disulfide, Bis(2-methylpropyl) disulphide, Di(2-methylpropyl) disulfide, 2,7-Dimethyl-4,5-dithiaoctane, 1-(Isobutyldisulfanyl)-2-methylpropane, 2-methyl-1-(2-methylpropyldisulfanyl)propane, bis(2-methylpropyl) persulfide, disulfide, bis(2-methylpropyl), diisobutyl disulphide, MFCD00039850, EINECS 216-177-4

Diisobutyl disulfide (CAS 1518-72-5) 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 boiling point of 220.6±9.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 67.2±20.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 1518-72-5
Jingsj CID: J-1991226-0
Molecular Formula: C₈H₁₈S₂
Molecular Weight: 178.359 g/mol
Category: Ethers
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	220.6±9.0 °C at 760 mmHg
Density	0.9±0.1 g/cm3
Flash Point	67.2±20.2 °C
Exact Mass	178.084991
PSA	50.60000
LogP	4.59
Vapor Pressure	0.2±0.4 mmHg at 25°C
Refractive Index	1.493

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 Diisobutyl disulfide?

The CAS number of Diisobutyl disulfide is 1518-72-5.

What are the molecular formula and molecular weight of Diisobutyl disulfide?

Diisobutyl disulfide has molecular formula C8H18S2 and molecular weight 178.359 g/mol.

What are the upstream and downstream products of Diisobutyl disulfide?

For Diisobutyl disulfide, Upstream Products: 1-Bromo-2-methylpropane, 1-Chloro-2-methylpropane, 2-Methyl-1-propanethiol; Downstream Products: Isobutanesulfonyl chloride, 2-Methyl-1-propanethiol, Trimethyl thiophosphate.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "Diisobutyl disulfide (CAS 1518-72-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1991226-0 (accessed 2026-11-07).

Data for reference only; verify product details with suppliers before purchase.