2-Chloro-4-methylphenyl isocyanate

2-氯-4-甲基苯异氰酸

Also known as: 2-chloro-1-isocyanato-4-methylbenzene, 3-chloro-4-isocyanatotoluene, 3-Chloro-4-toluene isocyanate, Benzene, 2-chloro-1-isocyanato-4-methyl-, 2-Chloro-4-methylphenylisocyanate, EINECS 254-906-8, MFCD03701592

2-Chloro-4-methylphenyl isocyanate (CAS 40398-00-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H6ClNO and a molecular weight of 167.59200 g/mol. It is also known as 2-chloro-1-isocyanato-4-methylbenzene, 3-chloro-4-isocyanatotoluene and 3-Chloro-4-toluene isocyanate. Key properties include a melting point of 26-30ºC(lit.), a boiling point of 231-232ºC(lit.), a density of 1.17g/cm3 and a flash point of 225 °F. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
40398-00-3
Jingsj CID
J-31264-6
Molecular Formula
C8H6ClNO
Chinese Name
2-氯-4-甲基苯异氰酸
Molecular Weight
167.59200 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point26-30ºC(lit.)
Boiling Point231-232ºC(lit.)
Density1.17g/cm3
Flash Point225 °F

Frequently Asked Questions

What is the CAS number of 2-Chloro-4-methylphenyl isocyanate?

The CAS number of 2-Chloro-4-methylphenyl isocyanate is 40398-00-3.

What are the molecular formula and molecular weight of 2-Chloro-4-methylphenyl isocyanate?

2-Chloro-4-methylphenyl isocyanate has molecular formula C8H6ClNO and molecular weight 167.59200 g/mol.

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

Last updated:

How to cite: Jingsj. "2-Chloro-4-methylphenyl isocyanate (CAS 40398-00-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-31264-6 (accessed 2026-10-24).

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