3-Formyl-4-hydroxybenzoic acid
Also known as: 4-hydroxy-5-formylbenzoic acid, Benzoic acid, 3-formyl-4-hydroxy-, MFCD00016595, 4-Hydroxyisophthalaldehydic acid, 5-Carboxysalicylaldehyde
3-Formyl-4-hydroxybenzoic acid (CAS 584-87-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H6O4 and a molecular weight of 166.131 g/mol. Key properties include a melting point of 246-250ºC(lit.), a boiling point of 345.5±32.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 177.0±21.6 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H317 — May cause an allergic skin reaction. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 584-87-2
- Jingsj CID
- J-3578-9
- Molecular Formula
- C8H6O4
- Molecular Weight
- 166.131 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 246-250ºC(lit.) |
|---|---|
| Boiling Point | 345.5±32.0 °C at 760 mmHg |
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 177.0±21.6 °C |
| Exact Mass | 166.026611 |
| PSA | 74.60000 |
| LogP | 1.83 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.669 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H315 — Causes skin irritation
- H317 — May cause an allergic skin reaction
- H319 — Causes serious eye irritation
Customs & Trade Information
| HS Code | 2918990090 |
|---|---|
| Summary | 2918990090. other carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 3-Formyl-4-hydroxybenzoic acid?
The CAS number of 3-Formyl-4-hydroxybenzoic acid is 584-87-2.
What are the molecular formula and molecular weight of 3-Formyl-4-hydroxybenzoic acid?
3-Formyl-4-hydroxybenzoic acid has molecular formula C8H6O4 and molecular weight 166.131 g/mol.
Is 3-Formyl-4-hydroxybenzoic acid hazardous?
3-Formyl-4-hydroxybenzoic acid has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H317 — May cause an allergic skin reaction.
What are the upstream and downstream products of 3-Formyl-4-hydroxybenzoic acid?
For 3-Formyl-4-hydroxybenzoic acid, Upstream Products: 4-Hydroxybenzoic acid, Trichloroacetic acid, Formaldehyde; Downstream Products: 4-Hydroxyisophthalic 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-Formyl-4-hydroxybenzoic acid (CAS 584-87-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-3578-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.