1,4-Dithiane
Also known as: p-Dithiane, 1,4-Dithiacyclohexane, Diethylene disulfide, Tetrahydro-1,4-dithiin, p-Dithiin, tetrahydro-, 1,4-Dithiin, tetrahydro-, diethylenedisulfide, p-Dithane, para-Dithiane
1,4-Dithiane (CAS 505-29-3) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C4H8S2 and a molecular weight of 120.236 g/mol. Key properties include a melting point of 110-112ºC, a boiling point of 200.5±15.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 82.1±17.4 °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.
- 505-29-3
- Jingsj CID
- J-36744-2
- Molecular Formula
- C4H8S2
- Molecular Weight
- 120.236 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 110-112ºC |
|---|---|
| Boiling Point | 200.5±15.0 °C at 760 mmHg |
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 82.1±17.4 °C |
| Exact Mass | 120.006737 |
| PSA | 50.60000 |
| LogP | 1.12 |
| Vapor Pressure | 0.5±0.4 mmHg at 25°C |
| Refractive Index | 1.574 |
| Storage Conditions | 2-8°C |
| Stability | Stable. Incompatible with strong oxidizing agents. Probably combustible. |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2934999090 |
|---|---|
| Summary | 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 1,4-Dithiane?
The CAS number of 1,4-Dithiane is 505-29-3.
What are the molecular formula and molecular weight of 1,4-Dithiane?
1,4-Dithiane has molecular formula C4H8S2 and molecular weight 120.236 g/mol.
Is 1,4-Dithiane hazardous?
1,4-Dithiane 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 1,4-Dithiane?
For 1,4-Dithiane, Upstream Products: 1,2-Ethanedithiol, 1,2-dichloroethane, 1,2-Dibromoethane; Downstream Products: Mustard gas.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1,4-Dithiane (CAS 505-29-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-36744-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.