3-Methylsalicylic acid
Also known as: 2-Hydroxy-3-methylbenzoic acid, o-Cresotic acid, 2-hydroxy-m-toluic acid, Cresotic acid, o-Kresotinic Acid, 2-hydroxy-3-methyl-benzoic acid, 2-carboxy-6-methylphenol, 3-Methylsalycilic acid, 3-methyl salicylic acid, Hydroxytoluic, cresotinicacid
3-Methylsalicylic acid (CAS 83-40-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H8O3 and a molecular weight of 152.147 g/mol. Key properties include a melting point of 98-100 °C(lit.), a boiling point of 293.2±28.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 145.4±20.5 °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.
- 83-40-9
- Jingsj CID
- J-1962147-7
- Molecular Formula
- C8H8O3
- Molecular Weight
- 152.147 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 98-100 °C(lit.) |
|---|---|
| Boiling Point | 293.2±28.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 145.4±20.5 °C |
| Exact Mass | 152.047348 |
| PSA | 57.53000 |
| LogP | 2.52 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.600 |
| Additional Property | 1.5 g/L (20 ºC) |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H315 — Causes skin irritation
- H318 — Causes serious eye damage
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2918290000 |
|---|---|
| Summary | HS: 2918290000 other carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives Tax rebate rate:9.0% Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward) VAT:17.0% MFN tariff:6.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 3-Methylsalicylic acid?
The CAS number of 3-Methylsalicylic acid is 83-40-9.
What are the molecular formula and molecular weight of 3-Methylsalicylic acid?
3-Methylsalicylic acid has molecular formula C8H8O3 and molecular weight 152.147 g/mol.
Is 3-Methylsalicylic acid hazardous?
3-Methylsalicylic acid 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 3-Methylsalicylic acid?
For 3-Methylsalicylic acid, Upstream Products: Carbon dioxide, o-Cresol, Carbon tetrachloride; Downstream Products: 5-bromo-2-hydroxy-3-methylbenzoic acid, 2-(Acetyloxy)-3-methylbenzoic acid, 2-Methoxyisophthalic 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-Methylsalicylic acid (CAS 83-40-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1962147-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.