4-Fluorobenzyl isocyanate
4-氟苄基异氰酸酯
Also known as: 1-fluoro-4-(isocyanatomethyl)benzene, p-Fluorobenzyl isocyanate, 4-Fluorophenylmethyl isocyanate
4-Fluorobenzyl isocyanate (CAS 132740-43-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H6FNO and a molecular weight of 151.13800 g/mol. It is also known as 1-fluoro-4-(isocyanatomethyl)benzene, p-Fluorobenzyl isocyanate and 4-Fluorophenylmethyl isocyanate. Key properties include a boiling point of 205ºC at 760mmHg, a density of 1.09g/cm3 and a flash point of 74.7ºC. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H312 — Harmful in contact with skin and H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 132740-43-3
- Jingsj CID
- J-1069723-8
- Molecular Formula
- C8H6FNO
- Chinese Name
- 4-氟苄基异氰酸酯
- Molecular Weight
- 151.13800 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 205ºC at 760mmHg |
|---|---|
| Density | 1.09g/cm3 |
| Flash Point | 74.7ºC |
| Exact Mass | 151.04300 |
| PSA | 29.43000 |
| LogP | 1.66150 |
| Vapor Pressure | 0.256mmHg at 25°C |
| Refractive Index | n20/D 1.505(lit.) |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H312 — Harmful in contact with skin
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H332 — Harmful if inhaled
- H335 — May cause respiratory irritation
Frequently Asked Questions
What is the CAS number of 4-Fluorobenzyl isocyanate?
The CAS number of 4-Fluorobenzyl isocyanate is 132740-43-3.
What are the molecular formula and molecular weight of 4-Fluorobenzyl isocyanate?
4-Fluorobenzyl isocyanate has molecular formula C8H6FNO and molecular weight 151.13800 g/mol.
Is 4-Fluorobenzyl isocyanate hazardous?
4-Fluorobenzyl isocyanate has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H312 — Harmful in contact with skin; H315 — Causes skin irritation.
What are the upstream and downstream products of 4-Fluorobenzyl isocyanate?
For 4-Fluorobenzyl isocyanate, Upstream Products: Bis(trichloromethyl) carbonate, 4-Fluorobenzylamine, 4-Fluorophenylacetic acid.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Fluorobenzyl isocyanate (CAS 132740-43-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1069723-8 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.