Ethyl thiocyanate
Also known as: ETHYL RHODANATE, ETHYL SULFOCYANATE, Ethyl rhodanide, Thiocyanic acid ethyl ester, Ethyl sulfocyanate, MFCD00001834, ETHYL THIOCYANATE
Ethyl thiocyanate (CAS 542-90-5) 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 -86ºC, a boiling point of 144.5±3.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 42.8±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour, H302 — Harmful if swallowed and H312 — Harmful in contact with skin. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 542-90-5
- Jingsj CID
- J-3300-1
- 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 | -86ºC |
|---|---|
| Boiling Point | 144.5±3.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 42.8±0.0 °C |
| Exact Mass | 87.014267 |
| PSA | 49.09000 |
| LogP | 0.97 |
| Vapor Pressure | 5.1±0.3 mmHg at 25°C |
| Refractive Index | 1.471 |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
- H302 — Harmful if swallowed
- H312 — Harmful in contact with skin
- H332 — Harmful if inhaled
- 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 Ethyl thiocyanate?
The CAS number of Ethyl thiocyanate is 542-90-5.
What are the molecular formula and molecular weight of Ethyl thiocyanate?
Ethyl thiocyanate has molecular formula C3H5NS and molecular weight 87.144 g/mol.
Is Ethyl thiocyanate hazardous?
Ethyl thiocyanate has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour; H302 — Harmful if swallowed; H312 — Harmful in contact with skin.
What are the upstream and downstream products of Ethyl thiocyanate?
For Ethyl thiocyanate, Upstream Products: Sodium thiocyanate, Triethylamine, Potassium thiocyanate; Downstream Products: Diethyl sulfide, Potassium thiocyanate, Ethanethiol.
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 thiocyanate (CAS 542-90-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-3300-1 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.