Ethyl isothiocyanate
Also known as: Isothiocyanatoethane, Ethyl mustard oil, Ethyl senfoel, Ethane, isothiocyanato-, ethyl isorhodanate, ethyl isorhodanide, ethyl isosulfocyanide, ethyl isothiocyanide, MFCD00004820, EINECS 208-831-2
Ethyl isothiocyanate (CAS 542-85-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C3H5NS and a molecular weight of 87.144 g/mol. Key properties include a melting point of -6 °C, a boiling point of 131.3±3.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 32.2±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H226 — Flammable liquid and vapour, H301 — Toxic if swallowed and H311 — Toxic in contact with skin. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 542-85-8
- Jingsj CID
- J-49469-9
- Molecular Formula
- C3H5NS
- Molecular Weight
- 87.144 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -6 °C |
|---|---|
| Boiling Point | 131.3±3.0 °C at 760 mmHg |
| Density | 0.9±0.1 g/cm3 |
| Flash Point | 32.2±0.0 °C |
| Exact Mass | 87.014267 |
| PSA | 44.45000 |
| LogP | 1.47 |
| Vapor Pressure | 11.5±0.2 mmHg at 25°C |
| Refractive Index | 1.486 |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
- H301 — Toxic if swallowed
- H311 — Toxic in contact with skin
- H314 — Causes severe skin burns and eye damage
- H331 — Toxic if inhaled
- H334 — May cause allergy or asthma symptoms if inhaled
- H400 — Very toxic to aquatic life
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 Ethyl isothiocyanate?
The CAS number of Ethyl isothiocyanate is 542-85-8.
What are the molecular formula and molecular weight of Ethyl isothiocyanate?
Ethyl isothiocyanate has molecular formula C3H5NS and molecular weight 87.144 g/mol.
Is Ethyl isothiocyanate hazardous?
Ethyl isothiocyanate has GHS signal word Danger and hazard statements H226 — Flammable liquid and vapour; H301 — Toxic if swallowed; H311 — Toxic in contact with skin.
What are the upstream and downstream products of Ethyl isothiocyanate?
For Ethyl isothiocyanate, Upstream Products: Thiophosgene, Ethylamine, Carbon disulphide; Downstream Products: hydrogen sulfide, Ethylamine, 2-Ethylaminothiophene.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Ethyl isothiocyanate (CAS 542-85-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-49469-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.