o-Toluic acid
Also known as: 2-Methylbenzoic acid, o-Methylbenzoic acid, ortho-toluic acid, 2-toluic acid, o-toluenecarboxylic acid
o-Toluic acid (CAS 118-90-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H8O2 and a molecular weight of 136.148 g/mol. Key properties include a melting point of 103 °C, a boiling point of 260.9±9.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 118.8±13.4 °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.
- 118-90-1
- Jingsj CID
- J-11375-7
- Molecular Formula
- C8H8O2
- Molecular Weight
- 136.148 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 103 °C |
|---|---|
| Boiling Point | 260.9±9.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 118.8±13.4 °C |
| Exact Mass | 136.052429 |
| PSA | 37.30000 |
| LogP | 2.36 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.556 |
| Additional Property | <0.1 g/100 mL at 19 ºC |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Activity & Biological Data
| Target | IC50: xenobiotic metabolite |
|---|
Customs & Trade Information
| HS Code | 2916391000 |
|---|---|
| Summary | 2916391000 2-methylbenzoic acid。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。Lowest tariff:6.5%。General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of o-Toluic acid?
The CAS number of o-Toluic acid is 118-90-1.
What are the molecular formula and molecular weight of o-Toluic acid?
o-Toluic acid has molecular formula C8H8O2 and molecular weight 136.148 g/mol.
Is o-Toluic acid hazardous?
o-Toluic 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 o-Toluic acid?
For o-Toluic acid, Upstream Products: 2-Bromotoluene, 2-Methylbenzaldehyde, 2'-Methylacetophenone; Downstream Products: 5-Methoxy-2-methylbenzoic acid, 5-Iodo-2-methylbenzoic acid, 3-Iodo-2-methylbenzoic 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. "o-Toluic acid (CAS 118-90-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-11375-7 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.