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4-Iodophenol

Also known as: p-Iodophenol, 4-Hydroxyiodobenzene, 4-Hydroxyphenyl iodide, Phenol, 4-iodo-, Phenol, p-iodo-

4-Iodophenol (CAS 540-38-5) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C6H5IO and a molecular weight of 220.008 g/mol. Key properties include a melting point of 92-94 °C(lit.), a boiling point of 287.2±0.0 °C at 760 mmHg, a density of 2.0±0.1 g/cm3 and a flash point of 112.4±22.6 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H312 — Harmful in contact with skin and H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
540-38-5
Jingsj CID
J-5444-7
Molecular Formula
C6H5IO
Molecular Weight
220.008 g/mol
Category
Alcohols
Last updated
8/21/2026

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Physicochemical Properties

Melting Point92-94 °C(lit.)
Boiling Point287.2±0.0 °C at 760 mmHg
Density2.0±0.1 g/cm3
Flash Point112.4±22.6 °C
Exact Mass219.938507
PSA20.23000
LogP2.91
Vapor Pressure0.0±0.6 mmHg at 25°C
Refractive Index1.669
Additional Propertyslightly soluble

GHS Safety & Compliance

Corrosion / IrritantSignal word: Danger
  • H302 — Harmful if swallowed
  • H312 — Harmful in contact with skin
  • H314 — Causes severe skin burns and eye damage

Customs & Trade Information

HS Code2908199090
SummaryHS: 2908199090. derivatives of polyphenols or phenol-alcohols containing only halogen substituents and their salts. VAT:17.0%. tax rebate rate:9.0%. supervision conditions:None. MFN tariff:5.5%. general tariff:30.0%

Frequently Asked Questions

What is the CAS number of 4-Iodophenol?

The CAS number of 4-Iodophenol is 540-38-5.

What are the molecular formula and molecular weight of 4-Iodophenol?

4-Iodophenol has molecular formula C6H5IO and molecular weight 220.008 g/mol.

Is 4-Iodophenol hazardous?

4-Iodophenol has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H312 — Harmful in contact with skin; H314 — Causes severe skin burns and eye damage.

What are the upstream and downstream products of 4-Iodophenol?

For 4-Iodophenol, Upstream Products: 4-Iodophenylboronic acid, 4-Aminophenol, Phenol; Downstream Products: 1-[2-(4-iodophenoxy)ethyl]piperidine, 4'-Fluoro-[1,1'-biphenyl]-4-ol, 4,4'-Difluorobiphenyl.

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

Last updated:

How to cite: Jingsj. "4-Iodophenol (CAS 540-38-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-5444-7 (accessed 2026-11-07).

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