5-Chloro-2,4-dimethoxyphenyl isocyanate

5-氯-2,4-二甲氧基苯基异氰酸酯

Also known as: 1-chloro-5-isocyanato-2,4-dimethoxybenzene, 3-chloro-4,6-dimethoxyphenyl isocyanate, 5-chloro-2,4-dimethoxybenzenisocyanate, Benzene, 1-chloro-5-isocyanato-2,4-dimethoxy-, MFCD00013857

5-Chloro-2,4-dimethoxyphenyl isocyanate (CAS 55440-55-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H8ClNO3 and a molecular weight of 213.61800 g/mol. It is also known as 1-chloro-5-isocyanato-2,4-dimethoxybenzene, 3-chloro-4,6-dimethoxyphenyl isocyanate and 5-chloro-2,4-dimethoxybenzenisocyanate. Key properties include a melting point of 94-98ºC, a boiling point of 314.5ºC at 760 mmHg, a density of 1.24g/cm3 and a flash point of 144ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 55440-55-6
Jingsj CID: J-41179-2
Molecular Formula: C₉H₈ClNO₃
Chinese Name: 5-氯-2,4-二甲氧基苯基异氰酸酯
Molecular Weight: 213.61800 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	94-98ºC
Boiling Point	314.5ºC at 760 mmHg
Density	1.24g/cm3
Flash Point	144ºC

Frequently Asked Questions

What is the CAS number of 5-Chloro-2,4-dimethoxyphenyl isocyanate?

The CAS number of 5-Chloro-2,4-dimethoxyphenyl isocyanate is 55440-55-6.

What are the molecular formula and molecular weight of 5-Chloro-2,4-dimethoxyphenyl isocyanate?

5-Chloro-2,4-dimethoxyphenyl isocyanate has molecular formula C9H8ClNO3 and molecular weight 213.61800 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "5-Chloro-2,4-dimethoxyphenyl isocyanate (CAS 55440-55-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-41179-2 (accessed 2026-10-23).

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