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3,4,5,6-Tetrachlorobenzene-1,2-diol

四氯邻苯二酚

Also known as: Tetrachlorocatechol, Tetrachloropyrocatechol, tetrachloro-1,2-benzenediol, 3,4,5,6-tetrachloro-1,2-benzenediol, tetrachloro-pyrocatecho, tetrachlorpyrokatechin, 1,2-Benzenediol, 3,4,5,6-tetrachloro-

3,4,5,6-Tetrachlorobenzene-1,2-diol (CAS 1198-55-6) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C6H2Cl4O2 and a molecular weight of 247.891 g/mol. It is also known as Tetrachlorocatechol, Tetrachloropyrocatechol and tetrachloro-1,2-benzenediol. Key properties include a melting point of 184-186°C (dec.), a boiling point of 309.1±37.0 °C at 760 mmHg, a density of 1.8±0.1 g/cm3 and a flash point of 140.7±26.5 °C. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1198-55-6
Jingsj CID
J-1993177-7
Molecular Formula
C6H2Cl4O2
Chinese Name
四氯邻苯二酚
Molecular Weight
247.891 g/mol
Category
Alcohols
Last updated
8/21/2026

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Physicochemical Properties

Melting Point184-186°C (dec.)
Boiling Point309.1±37.0 °C at 760 mmHg
Density1.8±0.1 g/cm3
Flash Point140.7±26.5 °C

GHS Safety & Compliance

Corrosion / Irritant / Environmental HazardSignal word: Danger

Frequently Asked Questions

What is the CAS number of 3,4,5,6-Tetrachlorobenzene-1,2-diol?

The CAS number of 3,4,5,6-Tetrachlorobenzene-1,2-diol is 1198-55-6.

What are the molecular formula and molecular weight of 3,4,5,6-Tetrachlorobenzene-1,2-diol?

3,4,5,6-Tetrachlorobenzene-1,2-diol has molecular formula C6H2Cl4O2 and molecular weight 247.891 g/mol.

Is 3,4,5,6-Tetrachlorobenzene-1,2-diol hazardous?

3,4,5,6-Tetrachlorobenzene-1,2-diol has GHS signal word Danger.

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

Last updated:

How to cite: Jingsj. "3,4,5,6-Tetrachlorobenzene-1,2-diol (CAS 1198-55-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1993177-7 (accessed 2026-10-22).

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