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4'-Hydroxyacetophenone

Also known as: 4-Hydroxyacetophenone, 4-Acetylphenol, p-Acetylphenol, p-Hydroxyphenyl methyl ketone, 1-(4-Hydroxyphenyl)ethanone, Piceol, 1-(4-Hydroxyphenyl)ethan-1-one

4'-Hydroxyacetophenone (CAS 99-93-4) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C8H8O2 and a molecular weight of 136.15000 g/mol. Key properties include a melting point of 132-135 °C(lit.), a boiling point of 313.0±0.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 121.2±12.4 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed. No supplier offers are currently listed; request a quote. Record last updated Nov 4, 2026.

CAS No.
99-93-4
Jingsj CID
J-3213-3
Molecular Formula
C8H8O2
Molecular Weight
136.15000 g/mol
Category
Ketones
Last updated
11/4/2026

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Physicochemical Properties

Melting Point132-135 °C(lit.)
Boiling Point313.0±0.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point121.2±12.4 °C
Exact Mass136.052429
PSA37.30000
LogP1.42
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.552
Additional Property10 g/L (22 ºC)

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed

Activity & Biological Data

Additional Information[1]. Ching-Wen C, et al. p-Hydroxyacetophenone suppresses nuclear factor-κB-related inflammation in nociceptive and inflammatory animal models. J Nat Med. 2017 Apr;71(2):422-432.

Customs & Trade Information

HS Code2914501900
Summary2914501900 other ketone-phenols。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 4'-Hydroxyacetophenone?

The CAS number of 4'-Hydroxyacetophenone is 99-93-4.

What are the molecular formula and molecular weight of 4'-Hydroxyacetophenone?

4'-Hydroxyacetophenone has molecular formula C8H8O2 and molecular weight 136.15000 g/mol.

Is 4'-Hydroxyacetophenone hazardous?

4'-Hydroxyacetophenone has GHS signal word Warning and hazard statements H302 — Harmful if swallowed.

What are the upstream and downstream products of 4'-Hydroxyacetophenone?

For 4'-Hydroxyacetophenone, Upstream Products: 4-Acetylphenylboronic acid, 4'-Bromoacetophenone, Acetyl chloride; Downstream Products: 4-Acetylphenyl trifluoromethanesulfonate, 3'-Fluoro-4'-hydroxyacetophenone, 1-(3,5-Difluoro-4-hydroxyphenyl)ethanone.

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'-Hydroxyacetophenone (CAS 99-93-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-3213-3 (accessed 2026-11-09).

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