2-Chloroethyl isocyanate
Also known as: 1-Chloro-2-isocyanatoethane, Isocyanic acid 2-chloroethyl ester, 2-Chloroethyl isocyanate (low HCl), β-Chloroethyl isocyanate, N-2-chloroethyl isocyanate, CIC, NSC 87418, MFCD00002043, EINECS 217-734-4
2-Chloroethyl isocyanate (CAS 1943-83-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C3H4ClNO and a molecular weight of 105.523 g/mol. Key properties include a melting point of 135ºC, a boiling point of 135.0±0.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 56.7±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 H331 — Toxic if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1943-83-5
- Jingsj CID
- J-47576-3
- Molecular Formula
- C3H4ClNO
- Molecular Weight
- 105.523 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 135ºC |
|---|---|
| Boiling Point | 135.0±0.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 56.7±0.0 °C |
| Exact Mass | 104.998138 |
| PSA | 29.43000 |
| LogP | 1.43 |
| Vapor Pressure | 7.9±0.2 mmHg at 25°C |
| Refractive Index | 1.456 |
| Additional Property | reacts |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
- H301 — Toxic if swallowed
- H331 — Toxic if inhaled
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H334 — May cause allergy or asthma symptoms if inhaled
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2929109000 |
|---|---|
| Summary | 2929109000. other isocyanates. 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-Chloroethyl isocyanate?
The CAS number of 2-Chloroethyl isocyanate is 1943-83-5.
What are the molecular formula and molecular weight of 2-Chloroethyl isocyanate?
2-Chloroethyl isocyanate has molecular formula C3H4ClNO and molecular weight 105.523 g/mol.
Is 2-Chloroethyl isocyanate hazardous?
2-Chloroethyl isocyanate has GHS signal word Danger and hazard statements H226 — Flammable liquid and vapour; H301 — Toxic if swallowed; H331 — Toxic if inhaled.
What are the upstream and downstream products of 2-Chloroethyl isocyanate?
For 2-Chloroethyl isocyanate, Upstream Products: 3-Chloropropionic acid, 3-Chloropropionyl chloride, Carbon dioxide; Downstream Products: 2-Oxazolidinone, 4-Fluoroaniline, 2-Amino-5-(methylsulfonyl)thiazole.
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-Chloroethyl isocyanate (CAS 1943-83-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-47576-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.