m-Toluic acid
3-Methylbenzoic acid, m-Methylbenzoic acid, 3-Toluic acid, 3-MBA, beta-Methylbenzoic acid.
- CAS
- 99-04-7
- EC
- 202-723-9
- Sectors
- Pharma & Healthcare, Agriculture, Coatings, Adhesives, Sealants & Elastomers
m-Toluic acid (CAS 99-04-7) is an aromatic carboxylic acid, also known as 3-methylbenzoic acid, supplied as a slightly yellow to beige-yellow crystalline solid that serves as the key building block for DEET insect repellents, pharmaceutical intermediates, agrochemicals and polymer additives. It is the primary precursor used to manufacture N,N-Diethyl-m-toluamide (DEET), the world's most common active ingredient in insect repellents.
This white crystalline powder demonstrates excellent stability and reactivity, making it suitable for complex acylation and oxidation reactions. It is widely utilized in the production of pharmaceutical intermediates, high-performance plasticizers, and stabilizers for polymers.
Supplied in Industrial Grade, this chemical ensures consistent efficacy for large-scale formulation and manufacturing processes. Its unique molecular structure also makes it a key raw material for specialty agrochemicals and specific photographic chemicals.
Typical Properties
| Molecular formula | C8H8O2 |
|---|---|
| Molecular weight | 136.15 g/mol |
| Form | Crystalline Solid |
| Color | Slightly yellow to beige-yellow |
| Odor | Floral-honey odor |
| Melting point | 108.7 °C |
| Boiling point | 215-216 °C |
| Density | 1.054 g/mL at 25 °C |
| Water solubility | <0.1 g/100 mL at 19 °C |
| Flash point | 150 °C |
| pH | 3.4 (H2O, 20°C)(saturated solution) |
| GHS signal word | Danger · Corrosive, Irritant / harmful |
| HS code | 29163900 |
| Grades available | Technical Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
m-Toluic acid
Applications
- Insect Repellents: Acts as the essential raw material for synthesizing DEET, used globally in personal care and pest control products.
- Pharmaceutical Synthesis: Serves as a chemical intermediate for producing various therapeutic drugs and bioactive compounds.
- Agrochemical Manufacturing: Used in the formulation of specific herbicides and fungicides for crop protection.
- Polymer Additives: Functions as a stabilizer and intermediate in the production of specialty plastics and resin systems.
Safety & Risks
m-Toluic acid is classified as an irritant that causes serious eye irritation and skin irritation upon direct contact. It may be harmful if swallowed or inhaled in high concentrations. Personnel must wear protective gloves, safety goggles, and dust masks or respirators during handling. Work areas should be equipped with local exhaust ventilation to prevent dust accumulation.
Packaging
• 25 kg Bags
• 25 kg Fiber Drums
• 500 kg / 1000 kg Big Bags (Jumbo)