3,4-Difluorophenyl isocyanate

异氰酸3,4-二氟苯酯

Also known as: 1,2-Difluoro-4-isocyanatobenzene, 3,4-Difluoro-1-isocyanatobenzene, Benzene, 1,2-difluoro-4-isocyanato-, Isocyanic Acid 3,4-Difluorophenyl Ester, MFCD00065711

3,4-Difluorophenyl isocyanate (CAS 42601-04-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H3F2NO and a molecular weight of 155.102 g/mol. It is also known as 1,2-Difluoro-4-isocyanatobenzene, 3,4-Difluoro-1-isocyanatobenzene and Benzene, 1,2-difluoro-4-isocyanato-. Key properties include a boiling point of 186.4±30.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 58.9±14.2 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
42601-04-7
Jingsj CID
J-35755-5
Molecular Formula
C7H3F2NO
Chinese Name
异氰酸3,4-二氟苯酯
Molecular Weight
155.102 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point186.4±30.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point58.9±14.2 °C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 3,4-Difluorophenyl isocyanate?

The CAS number of 3,4-Difluorophenyl isocyanate is 42601-04-7.

What are the molecular formula and molecular weight of 3,4-Difluorophenyl isocyanate?

3,4-Difluorophenyl isocyanate has molecular formula C7H3F2NO and molecular weight 155.102 g/mol.

Is 3,4-Difluorophenyl isocyanate hazardous?

3,4-Difluorophenyl isocyanate has GHS signal word Warning.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "3,4-Difluorophenyl isocyanate (CAS 42601-04-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-35755-5 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.