1,2,4,5-tetrachloro-3-isocyanatobenzene

2,3,5,6-四氯苯异氰酸酯

Also known as: 2,3,5,6-Tetrachlorophenyl isocyanate, Benzene, 1,2,4,5-tetrachloro-3-isocyanato-, MFCD01863691

1,2,4,5-tetrachloro-3-isocyanatobenzene (CAS 40398-02-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7HCl4NO and a molecular weight of 256.90100 g/mol. It is also known as 2,3,5,6-Tetrachlorophenyl isocyanate, Benzene, 1,2,4,5-tetrachloro-3-isocyanato- and MFCD01863691. Key properties include a melting point of 62-64ºC(lit.), a boiling point of 319.6ºC at 760 mmHg, a density of 1.64g/cm3 and a flash point of 127.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
40398-02-5
Jingsj CID
J-34347-1
Molecular Formula
C7HCl4NO
Chinese Name
2,3,5,6-四氯苯异氰酸酯
Molecular Weight
256.90100 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point62-64ºC(lit.)
Boiling Point319.6ºC at 760 mmHg
Density1.64g/cm3
Flash Point127.5ºC

Frequently Asked Questions

What is the CAS number of 1,2,4,5-tetrachloro-3-isocyanatobenzene?

The CAS number of 1,2,4,5-tetrachloro-3-isocyanatobenzene is 40398-02-5.

What are the molecular formula and molecular weight of 1,2,4,5-tetrachloro-3-isocyanatobenzene?

1,2,4,5-tetrachloro-3-isocyanatobenzene has molecular formula C7HCl4NO and molecular weight 256.90100 g/mol.

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

Last updated:

How to cite: Jingsj. "1,2,4,5-tetrachloro-3-isocyanatobenzene (CAS 40398-02-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-34347-1 (accessed 2026-10-24).

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