4-Methoxysalicylic acid
Also known as: 2-hydroxy-4-methoxybenzoic acid, p-Methoxysalicylic acid, 2-Hydroxy-p-anisic acid, 4-methoxy-2-hydroxybenzoic acid, 2-Hydroxy-4-methoxybenzoic acid
4-Methoxysalicylic acid (CAS 2237-36-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H8O4 and a molecular weight of 168.147 g/mol. Key properties include a melting point of 158-159 °C(lit.), a boiling point of 328.7±27.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 137.9±17.2 °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.
- 2237-36-7
- Jingsj CID
- J-44237-5
- Molecular Formula
- C8H8O4
- Molecular Weight
- 168.147 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 158-159 °C(lit.) |
|---|---|
| Boiling Point | 328.7±27.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 137.9±17.2 °C |
| Exact Mass | 168.042252 |
| PSA | 66.76000 |
| LogP | 2.24 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.586 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory 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 4-Methoxysalicylic acid?
The CAS number of 4-Methoxysalicylic acid is 2237-36-7.
What are the molecular formula and molecular weight of 4-Methoxysalicylic acid?
4-Methoxysalicylic acid has molecular formula C8H8O4 and molecular weight 168.147 g/mol.
Is 4-Methoxysalicylic acid hazardous?
4-Methoxysalicylic acid 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 4-Methoxysalicylic acid?
For 4-Methoxysalicylic acid, Upstream Products: 4-Methoxybenzoic acid, 2,4-Dihydroxybenzoic acid, Dimethyl sulfate; Downstream Products: 2,4,5-Trimethoxybenzoic acid, 2,4-Dimethoxybenzoic acid, 2-Hydroxy-4-methoxybenzohydrazide.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Methoxysalicylic acid (CAS 2237-36-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-44237-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.