p-Toluic acid
p-Toluic acid (CAS 99-94-5), with the molecular formula CH3C6H4CO2H and a molar mass of 136.15 g/mol, is a carboxylic acid derived from toluene. It functions as a key intermediate and building block in organic synthesis. This compound is widely utilised in the chemical industry for the production of various organic compounds, including pharmaceuticals, dyes, and agrochemicals.
- IUPAC
- 4-Methylbenzoic acid

Organic Synthesis Intermediate
p-Toluic acid serves as a versatile starting material or intermediate in the synthesis of more complex organic molecules. Its carboxylic acid and methyl functional groups allow for diverse chemical transformations.
Pharmaceutical Precursor
It is employed in the development and manufacturing of active pharmaceutical ingredients (APIs) and their precursors. The structure of p-toluic acid can be incorporated into various drug scaffolds.
Dye and Pigment Manufacturing
The compound finds application in the synthesis of certain dyes and pigments, contributing to the vibrant colours used across industries.
Agrochemical Development
p-Toluic acid is utilized in the creation of specific agrochemicals, aiding in the development of products for crop protection and enhancement.
| Molecular weight | 136.15 |
|---|---|
| Linear formula | CH3C6H4CO2H |
| Assay | 98% |
| Boiling point | 274-275 °C(lit.) |
| Melting point | 177-180 °C(lit.) |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 1 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is p-Toluic acid used for?
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p-Toluic acid is primarily used as an intermediate and building block in organic synthesis, including the production of pharmaceuticals, dyes, and agrochemicals.
What are the CAS number and formula for p-Toluic acid?
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The CAS number for p-Toluic acid is 99-94-5, and its molecular formula is CH3C6H4CO2H.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies p-Toluic acid with an assay of 98%. This is typically a technical or research grade, and TSS does not represent it as USP, BP, or EP grade.
What are the safety and handling precautions for p-Toluic acid?
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p-Toluic acid requires appropriate personal protective equipment, including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter is recommended. Consult the safety data sheet for full hazard information.
Is p-Toluic acid a controlled substance?
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The provided data does not indicate that p-Toluic acid is a controlled substance.
How is p-Toluic acid packed, shipped, and exported?
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p-Toluic acid is carefully packed to maintain its integrity during transit. Tech Serve Solutions is experienced in exporting chemicals globally, adhering to all relevant shipping regulations.
How can I request a sample or quote for p-Toluic acid?
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To request a sample or a quote for p-Toluic acid, please contact our sales department through the website or by phone.
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