4-Cyanophenyl isocyanate
Also known as: 4-isocyanatobenzonitrile, p-cyanophenyl isocyanate, 4-cyano-phenyl isocyanate, 4-cyanoisocyanatobenzene
4-Cyanophenyl isocyanate (CAS 40465-45-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H4N2O and a molecular weight of 144.13000 g/mol. Key properties include a melting point of 101-104 °C(lit.), a boiling point of 260.1ºC at 760mmHg, a density of 1.09g/cm3 and a flash point of 32ºC. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H312 — Harmful in contact with skin and H332 — Harmful if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 40465-45-0
- Jingsj CID
- J-1398372-7
- Molecular Formula
- C8H4N2O
- Molecular Weight
- 144.13000 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 101-104 °C(lit.) |
|---|---|
| Boiling Point | 260.1ºC at 760mmHg |
| Density | 1.09g/cm3 |
| Flash Point | 32ºC |
| Exact Mass | 144.03200 |
| PSA | 53.22000 |
| LogP | 1.52558 |
| Refractive Index | 1.562 |
| Additional Property | insoluble (dec) |
GHS Safety & Compliance
- 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 | 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 4-Cyanophenyl isocyanate?
The CAS number of 4-Cyanophenyl isocyanate is 40465-45-0.
What are the molecular formula and molecular weight of 4-Cyanophenyl isocyanate?
4-Cyanophenyl isocyanate has molecular formula C8H4N2O and molecular weight 144.13000 g/mol.
Is 4-Cyanophenyl isocyanate hazardous?
4-Cyanophenyl isocyanate has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H312 — Harmful in contact with skin; H332 — Harmful if inhaled.
What are the upstream and downstream products of 4-Cyanophenyl isocyanate?
For 4-Cyanophenyl isocyanate, Upstream Products: Bis(trichloromethyl) carbonate, 4-Aminobenzonitrile, 4'-Bromoacetanilide.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Cyanophenyl isocyanate (CAS 40465-45-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1398372-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.