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4-Isopropylphenol

Also known as: p-Isopropylphenol, p-Cumenol, p-Hydroxycumene, 4-(1-Methylethyl)phenol, 4-(Propan-2-yl)phenol, 1-Hydroxy-4-isopropylbenzene, Australol, Prodox 133, NSC 1888

4-Isopropylphenol (CAS 99-89-8) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C9H12O and a molecular weight of 136.191 g/mol. Key properties include a melting point of 59-61 °C(lit.), a boiling point of 208.6±9.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 95.3±8.2 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H314 — Causes severe skin burns and eye damage and H334 — May cause allergy or asthma symptoms if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
99-89-8
Jingsj CID
J-1344591-5
Molecular Formula
C9H12O
Molecular Weight
136.191 g/mol
Category
Alcohols
Last updated
8/21/2026

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Physicochemical Properties

Melting Point59-61 °C(lit.)
Boiling Point208.6±9.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point95.3±8.2 °C
Exact Mass136.088821
PSA20.23000
LogP2.82
Additional Property>1 (vs air)
Vapor Pressure0.1±0.4 mmHg at 25°C
Refractive Index1.526

GHS Safety & Compliance

Corrosion / Irritant / Health HazardSignal word: Danger
  • H302 — Harmful if swallowed
  • H314 — Causes severe skin burns and eye damage
  • H334 — May cause allergy or asthma symptoms if inhaled

Customs & Trade Information

HS Code2907199090
Summary2907199090 other monophenols 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-Isopropylphenol?

The CAS number of 4-Isopropylphenol is 99-89-8.

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

4-Isopropylphenol has molecular formula C9H12O and molecular weight 136.191 g/mol.

Is 4-Isopropylphenol hazardous?

4-Isopropylphenol has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H314 — Causes severe skin burns and eye damage; H334 — May cause allergy or asthma symptoms if inhaled.

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

For 4-Isopropylphenol, Upstream Products: 4-Isopropylbenzeneboronic acid, 4-Isopropylanisole, 1,4-Diisopropylbenzene; Downstream Products: 3-Formyl-6-isopropylchromone, 4-Isopropylcyclohexanone, Cyclohexane,(1-methylethyl)-.

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-Isopropylphenol (CAS 99-89-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1344591-5 (accessed 2026-11-09).

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