4-Methylbenzoic acid
Also known as: p-Toluic acid, p-Methylbenzoic acid, 4-TOLUIC ACID, p-Tolylcarboxylic acid, p-carboxytoluene, Crithminic acid, Toluenecarboxylic acid, para-Toluic acid, 4-Carboxytoluene, p-toluylic acid
4-Methylbenzoic acid (CAS 99-94-5) 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 179 °C, a boiling point of 275.3±9.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 124.7±13.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 99-94-5
- Jingsj CID
- J-35806-5
- 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 | 179 °C |
|---|---|
| Boiling Point | 275.3±9.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 124.7±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 |
Activity & Biological Data
| Target | Human Endogenous Metabolite |
|---|
Customs & Trade Information
| HS Code | 2916399090 |
|---|---|
| Summary | 2916399090 other aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 4-Methylbenzoic acid?
The CAS number of 4-Methylbenzoic acid is 99-94-5.
What are the molecular formula and molecular weight of 4-Methylbenzoic acid?
4-Methylbenzoic acid has molecular formula C8H8O2 and molecular weight 136.148 g/mol.
What are the upstream and downstream products of 4-Methylbenzoic acid?
For 4-Methylbenzoic acid, Upstream Products: 4-Chlorotoluene, 4-Methylbenzyl alcohol, p-Xylene; Downstream Products: Methyl 4-(4-oxobutyl)benzoate, 4-Methylphthalic acid, 3-Iodo-4-methylaniline.
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-Methylbenzoic acid (CAS 99-94-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-35806-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.