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3,4-Dimethylbenzophenone

Also known as: (3,4-Dimethylphenyl)(phenyl)methanone, (3,4-Dimethylphenyl)phenyl ketone, Methanone, (3,4-dimethylphenyl)phenyl-, Phenyl 3,4-xylyl ketone, asymm. Benzoyl-o-xylol, 3,4-Dimethyl-benzophenon, MFCD00008525, EINECS 219-916-9

3,4-Dimethylbenzophenone (CAS 2571-39-3) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C15H14O and a molecular weight of 210.271 g/mol. Key properties include a melting point of 45-47 °C(lit.), a boiling point of 354.1±21.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 153.7±17.0 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
2571-39-3
Jingsj CID
J-15846-3
Molecular Formula
C15H14O
Molecular Weight
210.271 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point45-47 °C(lit.)
Boiling Point354.1±21.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point153.7±17.0 °C
Exact Mass210.104462
PSA17.07000
LogP4.10
Vapor Pressure0.0±0.8 mmHg at 25°C
Refractive Index1.570

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2914399090
Summary2914399090. other aromatic ketones without other oxygen function. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:5.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 3,4-Dimethylbenzophenone?

The CAS number of 3,4-Dimethylbenzophenone is 2571-39-3.

What are the molecular formula and molecular weight of 3,4-Dimethylbenzophenone?

3,4-Dimethylbenzophenone has molecular formula C15H14O and molecular weight 210.271 g/mol.

Is 3,4-Dimethylbenzophenone hazardous?

3,4-Dimethylbenzophenone has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of 3,4-Dimethylbenzophenone?

For 3,4-Dimethylbenzophenone, Upstream Products: o-xylene, Benzoyl chloride, tert-Butyl benzoate; Downstream Products: 4-Benzoylphthalic acid.

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

Last updated:

How to cite: Jingsj. "3,4-Dimethylbenzophenone (CAS 2571-39-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-15846-3 (accessed 2026-11-09).

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