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2-Methylbenzaldehyde

Also known as: o-Tolualdehyde, 2-Formyltoluene, o-Tolylaldehyde, 2-Tolualdehyde, o-Toluic aldehyde, o-Toluylaldehyde, FEMA 3068, EINECS 208-452-2, MFCD00003338, Benzaldehyde, 2-methyl-

2-Methylbenzaldehyde (CAS 529-20-4) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8H8O and a molecular weight of 120.148 g/mol. Key properties include a melting point of -35 °C, a boiling point of 201.0±0.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 79.5±4.9 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H318 — Causes serious eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
529-20-4
Jingsj CID
J-32531-5
Molecular Formula
C8H8O
Molecular Weight
120.148 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point-35 °C
Boiling Point201.0±0.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point79.5±4.9 °C
Exact Mass120.057518
PSA17.07000
LogP2.10
Vapor Pressure0.3±0.3 mmHg at 25°C
Refractive Index1.558
Additional Propertyslightly soluble

GHS Safety & Compliance

Corrosion / IrritantSignal word: Danger
  • H302 — Harmful if swallowed
  • H315 — Causes skin irritation
  • H318 — Causes serious eye damage
  • H335 — May cause respiratory irritation
  • H412 — Harmful to aquatic life with long lasting effects

Customs & Trade Information

HS Code2912299000
Summary2912299000. other cyclic aldehydes 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 2-Methylbenzaldehyde?

The CAS number of 2-Methylbenzaldehyde is 529-20-4.

What are the molecular formula and molecular weight of 2-Methylbenzaldehyde?

2-Methylbenzaldehyde has molecular formula C8H8O and molecular weight 120.148 g/mol.

Is 2-Methylbenzaldehyde hazardous?

2-Methylbenzaldehyde has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H318 — Causes serious eye damage.

What are the upstream and downstream products of 2-Methylbenzaldehyde?

For 2-Methylbenzaldehyde, Downstream Products: Benzil, 2-methylbenzoyl cyanide, 2-Methylbenzamide.

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

Last updated:

How to cite: Jingsj. "2-Methylbenzaldehyde (CAS 529-20-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32531-5 (accessed 2026-11-09).

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