2,4-Dithiapentane
Also known as: Bis(methylthio)methane, Formaldehyde dimethyl mercaptal, Methylenebis(methyl sulfide), Bis(methylmercapto)methane, Bis(methylsulfanyl)methane, Dimethylthiomethane
2,4-Dithiapentane (CAS 1618-26-4) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C3H8S2 and a molecular weight of 108.226 g/mol. Key properties include a melting point of -20.5ºC, a boiling point of 147.0±0.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 43.9±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1618-26-4
- Jingsj CID
- J-35279-4
- Molecular Formula
- C3H8S2
- Molecular Weight
- 108.226 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -20.5ºC |
|---|---|
| Boiling Point | 147.0±0.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 43.9±0.0 °C |
| Exact Mass | 108.006737 |
| PSA | 50.60000 |
| LogP | 1.39 |
| Vapor Pressure | 5.7±0.2 mmHg at 25°C |
| Refractive Index | 1.515 |
| Additional Property | IMMISCIBLE |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
- 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 2,4-Dithiapentane?
The CAS number of 2,4-Dithiapentane is 1618-26-4.
What are the molecular formula and molecular weight of 2,4-Dithiapentane?
2,4-Dithiapentane has molecular formula C3H8S2 and molecular weight 108.226 g/mol.
Is 2,4-Dithiapentane hazardous?
2,4-Dithiapentane has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour; H315 — Causes skin irritation; H319 — Causes serious eye irritation.
What are the upstream and downstream products of 2,4-Dithiapentane?
For 2,4-Dithiapentane, Upstream Products: Methanethiol, dimethoxymethane, Dibutoxymethane; Downstream Products: (Methylsulfinyl)(methylthio)methane, Bis(methylthio)(trimethylsilyl)methane, Chloromethyl methyl sulfide.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2,4-Dithiapentane (CAS 1618-26-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-35279-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.