p-Tolyl disulfide
Also known as: bis(4-methylphenyl) disulfide, Di-p-tolyl disulfide, 4,4'-dimethyldiphenyldisulphide, 4-Methylphenyl disulfide, bis(4-tolyl) disulfide, 1,1'-Disulfanediylbis(4-methylbenzene), 1,2-Di-p-tolyldisulfane, 1-Methyl-4-[(4-methylphenyl)disulfanyl]benzene
p-Tolyl disulfide (CAS 103-19-5) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C14H14S2 and a molecular weight of 246.391 g/mol. Key properties include a melting point of 43-46 °C(lit.), a boiling point of 349.5±31.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 192.6±26.4 °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.
- 103-19-5
- Jingsj CID
- J-38929-7
- Molecular Formula
- C14H14S2
- Molecular Weight
- 246.391 g/mol
- Category
- Solvents
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 43-46 °C(lit.) |
|---|---|
| Boiling Point | 349.5±31.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 192.6±26.4 °C |
| Exact Mass | 246.053696 |
| PSA | 50.60000 |
| LogP | 5.33 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.650 |
GHS Safety & Compliance
- 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 p-Tolyl disulfide?
The CAS number of p-Tolyl disulfide is 103-19-5.
What are the molecular formula and molecular weight of p-Tolyl disulfide?
p-Tolyl disulfide has molecular formula C14H14S2 and molecular weight 246.391 g/mol.
Is p-Tolyl disulfide hazardous?
p-Tolyl disulfide 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 p-Tolyl disulfide?
For p-Tolyl disulfide, Upstream Products: 4-Iodotoluene, p-Toluenethiol, 4-Bromotoluene; Downstream Products: Bis(4-methoxyphenyl) disulfide, 4-(Trifluoromethylthio)toluene, p-Toluenesulfonyl fluoride.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "p-Tolyl disulfide (CAS 103-19-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-38929-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.