2,3,4,5-Tetrachlorophenol

Also known as: 2,3,4,5-Tetrachlorophenol, 2,3,4,5-TECP, Phenol, 2,3,4,5-tetrachloro-, 1,2,3,4-Tetrachloro-6-hydroxybenzene, 2,3,4,5-Tetrachlor-phenol, 2,3,4,5-tetrachloro-phenol

2,3,4,5-Tetrachlorophenol (CAS 4901-51-3) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C6H2Cl4O and a molecular weight of 231.891 g/mol. Key properties include a melting point of 69-70ºC, a boiling point of 289.4±35.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 128.8±25.9 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H301 — Toxic if swallowed and H311 — Toxic in contact with skin. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 4901-51-3
Jingsj CID: J-12114-2
Molecular Formula: C₆H₂Cl₄O
Molecular Weight: 231.891 g/mol
Category: Alcohols
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	69-70ºC
Boiling Point	289.4±35.0 °C at 760 mmHg
Density	1.7±0.1 g/cm3
Flash Point	128.8±25.9 °C
Exact Mass	229.885971
PSA	20.23000
LogP	4.39
Vapor Pressure	0.0±0.6 mmHg at 25°C
Refractive Index	1.621
Storage Conditions	APPROX 4°C

GHS Safety & Compliance

Flammable / Acute Toxicity / Health HazardSignal word: Danger

H225 — Highly flammable liquid and vapour
H301 — Toxic if swallowed
H311 — Toxic in contact with skin
H331 — Toxic if inhaled
H370 — Causes damage to organs

Frequently Asked Questions

What is the CAS number of 2,3,4,5-Tetrachlorophenol?

The CAS number of 2,3,4,5-Tetrachlorophenol is 4901-51-3.

What are the molecular formula and molecular weight of 2,3,4,5-Tetrachlorophenol?

2,3,4,5-Tetrachlorophenol has molecular formula C6H2Cl4O and molecular weight 231.891 g/mol.

Is 2,3,4,5-Tetrachlorophenol hazardous?

2,3,4,5-Tetrachlorophenol has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H301 — Toxic if swallowed; H311 — Toxic in contact with skin.

What are the upstream and downstream products of 2,3,4,5-Tetrachlorophenol?

For 2,3,4,5-Tetrachlorophenol, Upstream Products: 2,3,4,5-tetrachloroaniline, Pentachlorobenzene, Oxetane; Downstream Products: 2,3,5-Trichlorophenol, Dibenzo[b,d]furan, 4-chlorodibenzofuran.

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

Last updated: 8/21/2026

How to cite: Jingsj. "2,3,4,5-Tetrachlorophenol (CAS 4901-51-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-12114-2 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.