2,3-Dihydroxybenzaldehyde
Also known as: 3-Hydroxysalicylaldehyde, 5,6-Dihydroxybenzaldehyde, 2,3-Dihydroxy-1-formylbenzene, 3-Formyl-1,2-benzenediol, 1,2-Dihydroxy-3-formylbenzene, o-Pyrocatechualdehyde
2,3-Dihydroxybenzaldehyde (CAS 24677-78-9) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C7H6O3 and a molecular weight of 138.121 g/mol. Key properties include a melting point of 104-108 °C(lit.), a boiling point of 240.0±20.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 113.2±18.3 °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.
- 24677-78-9
- Jingsj CID
- J-45518-5
- Molecular Formula
- C7H6O3
- Molecular Weight
- 138.121 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 104-108 °C(lit.) |
|---|---|
| Boiling Point | 240.0±20.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 113.2±18.3 °C |
| Exact Mass | 138.031693 |
| PSA | 57.53000 |
| LogP | 1.35 |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
| Refractive Index | 1.674 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 29124900 |
|---|
Frequently Asked Questions
What is the CAS number of 2,3-Dihydroxybenzaldehyde?
The CAS number of 2,3-Dihydroxybenzaldehyde is 24677-78-9.
What are the molecular formula and molecular weight of 2,3-Dihydroxybenzaldehyde?
2,3-Dihydroxybenzaldehyde has molecular formula C7H6O3 and molecular weight 138.121 g/mol.
Is 2,3-Dihydroxybenzaldehyde hazardous?
2,3-Dihydroxybenzaldehyde 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 2,3-Dihydroxybenzaldehyde?
For 2,3-Dihydroxybenzaldehyde, Upstream Products: o-Vanillin, 3-Ethoxysalicylaldehyde, 2,3-Dimethoxybenzaldehyde; Downstream Products: 1,3-Benzodioxole-4-carboxylic acid, 3-(Hydroxymethyl)-1,2-benzenediol, 2,3-dihydro-1,4-benzodioxine-5-carboxylic 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. "2,3-Dihydroxybenzaldehyde (CAS 24677-78-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-45518-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.