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3-Carboxybenzaldehyde

Also known as: 3-Formylbenzoic acid, Isophthalaldehydic acid, m-Carboxybenzaldehyde, m-Formylbenzoic acid, Benzoic acid, 3-formyl-, 3-formyl-benzoicaci

3-Carboxybenzaldehyde (CAS 619-21-6) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8H6O3 and a molecular weight of 150.131 g/mol. Key properties include a melting point of 173-175 °C(lit.), a boiling point of 331.7±25.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 168.6±19.7 °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.
619-21-6
Jingsj CID
J-48805-1
Molecular Formula
C8H6O3
Molecular Weight
150.131 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point173-175 °C(lit.)
Boiling Point331.7±25.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point168.6±19.7 °C
Exact Mass150.031693
PSA54.37000
LogP1.60
Vapor Pressure0.0±0.8 mmHg at 25°C
Refractive Index1.620

GHS Safety & Compliance

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

Frequently Asked Questions

What is the CAS number of 3-Carboxybenzaldehyde?

The CAS number of 3-Carboxybenzaldehyde is 619-21-6.

What are the molecular formula and molecular weight of 3-Carboxybenzaldehyde?

3-Carboxybenzaldehyde has molecular formula C8H6O3 and molecular weight 150.131 g/mol.

Is 3-Carboxybenzaldehyde hazardous?

3-Carboxybenzaldehyde 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-Carboxybenzaldehyde?

For 3-Carboxybenzaldehyde, Upstream Products: Isophthalaldehyde, Carbon dioxide, 3-Bromobenzaldehyde dimethyl acetal; Downstream Products: Ethyl 3-formylbenzoate, tert-Butyl 3-formylbenzoate, 3-(1,3-Oxazol-5-yl)benzoic 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-Carboxybenzaldehyde (CAS 619-21-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-48805-1 (accessed 2026-11-09).

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