Cyclohexyl isocyanate
Also known as: Isocyanatocyclohexane, Isocyanic acid cyclohexyl ester, cyclohexyl-NCO, chi, cyclohexanyl isocyanate, c-hexylisocyanate, Cyclohexane, isocyanato-, isocyanato-cyclohexan, NSC 87419
Cyclohexyl isocyanate (CAS 3173-53-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H11NO and a molecular weight of 125.168 g/mol. Key properties include a melting point of -80 °C, a boiling point of 169.0±9.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 48.9±0.0 °C. It is classified under GHS with signal word Danger 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.
- 3173-53-3
- Jingsj CID
- J-14422-3
- Molecular Formula
- C7H11NO
- Molecular Weight
- 125.168 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -80 °C |
|---|---|
| Boiling Point | 169.0±9.0 °C at 760 mmHg |
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 48.9±0.0 °C |
| Exact Mass | 125.084061 |
| PSA | 29.43000 |
| LogP | 2.89 |
| Vapor Pressure | 1.6±0.3 mmHg at 25°C |
| Refractive Index | 1.523 |
| Additional Property | decomposes |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
- H302 — Harmful if swallowed
- H312 — Harmful in contact with skin
- H315 — Causes skin irritation
- H317 — May cause an allergic skin reaction
- H319 — Causes serious eye irritation
- H330 — Fatal if inhaled
- 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 Cyclohexyl isocyanate?
The CAS number of Cyclohexyl isocyanate is 3173-53-3.
What are the molecular formula and molecular weight of Cyclohexyl isocyanate?
Cyclohexyl isocyanate has molecular formula C7H11NO and molecular weight 125.168 g/mol.
Is Cyclohexyl isocyanate hazardous?
Cyclohexyl isocyanate has GHS signal word Danger 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 Cyclohexyl isocyanate?
For Cyclohexyl isocyanate, Upstream Products: Cyclohexylamine, 2-(Cyclohexylamino)-2-oxoacetic acid, Carbon dioxide; Downstream Products: N,N'-Dicyclohexylcarbodiimide, Cyclohexanone, tert-Butyl carbamate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Cyclohexyl isocyanate (CAS 3173-53-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-14422-3 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.