Diamyl sulfoxide
Also known as: Dipentyl sulfoxide, 1,1'-Sulfinylbis(pentane), 1,1'-sulfinylbis-pentane, 1-pentylsulfinylpentane, Di-n-amyl sulfoxide, Pentyl sulfoxide, dipentyl sulphoxide
Diamyl sulfoxide (CAS 1986-90-9) is a compound in the Sulfur Compounds category listed in the Jingsj chemical database. It has the molecular formula C10H22OS and a molecular weight of 190.34600 g/mol. Key properties include a boiling point of 309.6ºC at 760mmHg, a density of 0.937g/cm3 and a flash point of 141ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1986-90-9
- Jingsj CID
- J-1088585-5
- Molecular Formula
- C10H22OS
- Molecular Weight
- 190.34600 g/mol
- Category
- Sulfur Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 309.6ºC at 760mmHg |
|---|---|
| Density | 0.937g/cm3 |
| Flash Point | 141ºC |
| Exact Mass | 190.13900 |
| PSA | 36.28000 |
| LogP | 3.98120 |
| Vapor Pressure | 0.00116mmHg at 25°C |
| Refractive Index | 1.475 |
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 Diamyl sulfoxide?
The CAS number of Diamyl sulfoxide is 1986-90-9.
What are the molecular formula and molecular weight of Diamyl sulfoxide?
Diamyl sulfoxide has molecular formula C10H22OS and molecular weight 190.34600 g/mol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Diamyl sulfoxide (CAS 1986-90-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1088585-5 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.