Isopropyl Methyl Sulfide
Also known as: Isopropyl Methyl Sulfide, Isopropyl methyl sulphide, Methyl isopropyl sulfide, 2-(Methylsulfanyl)propane, 2-(Methylthio)propane, 3-Methyl-2-thiabutane, Propane, 2-(methylthio)-, Sulfide, isopropyl methyl, isopropylmethylsulphide, methyl propan-2-yl sulfide, methyl1-methylethylsulfide, methylsulfide, propane,2-(methylthio)-
Isopropyl Methyl Sulfide (CAS 1551-21-9) is a compound in the Ethers category listed in the Jingsj chemical database. It has the molecular formula C4H10S and a molecular weight of 90.187 g/mol. Key properties include a boiling point of 82.5±8.0 °C at 760 mmHg, a density of 0.8±0.1 g/cm3 and a flash point of -14.5±10.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1551-21-9
- Jingsj CID
- J-29341-9
- Molecular Formula
- C4H10S
- Molecular Weight
- 90.187 g/mol
- Category
- Ethers
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 82.5±8.0 °C at 760 mmHg |
|---|---|
| Density | 0.8±0.1 g/cm3 |
| Flash Point | -14.5±10.8 °C |
| Exact Mass | 90.050323 |
| PSA | 25.30000 |
| LogP | 1.77 |
| Vapor Pressure | 87.4±0.1 mmHg at 25°C |
| Refractive Index | 1.437 |
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 Isopropyl Methyl Sulfide?
The CAS number of Isopropyl Methyl Sulfide is 1551-21-9.
What are the molecular formula and molecular weight of Isopropyl Methyl Sulfide?
Isopropyl Methyl Sulfide has molecular formula C4H10S and molecular weight 90.187 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. "Isopropyl Methyl Sulfide (CAS 1551-21-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-29341-9 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.