M-Toluic Acid

CAS No.: 99-04-7 | EC No.: 202-723-9

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1. Chemical Identification

Property	Specification
IUPAC Name	3-methylbenzoic acid
Molecular Formula	C₈H₈O₂
Molecular Weight	136.15 g/mol
Appearance	Slightly yellow to beige crystalline solid
Melting Point	107-113°C
Boiling Point	263°C
Refractive Index	1.509
pKa	4.27 (at 25°C)
pH	3.69 (1mM), 3.15 (10mM), 2.64 (100mM)

Synonyms:
3-Methylbenzoic acid, m-Toluylic acid

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2. Key Applications

Agrochemical Industry

• Mosquito Repellent Production:
  ✓ N,N-Diethyl-m-toluamide (DEET) precursor
• Pesticide Intermediates:
  ✓ m-Toluoyl chloride synthesis
  ✓ m-Tolunitrile production

Pharmaceutical Sector

• Drug Synthesis: Building block for active ingredients

Chemical Manufacturing

• Fragrance Compounds: Intermediate for musk production
• Polymer Additives: Modifier for specialty resins

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3. Product Advantages

✔ High Purity – Ensures consistent reaction yields
✔ Versatile Intermediate – Multiple derivative pathways
✔ Process Efficiency – Optimized for industrial scale production

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4. Physical & Chemical Properties

• Solubility:
  • Water: 1.7 g/L at 20°C
  • Organic solvents: Soluble in ethanol, ether
• Vapor Pressure: 0.001 mmHg at 25°C

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5. Handling & Storage

Parameter	Requirement
Storage Temp	15-25°C (dry environment)
Packaging	25kg fiber drums with liner
Shelf Life	36 months
Special Notes	Keep container tightly closed

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6. Safety Information

Warning!

• H315: Causes skin irritation
• H319: Causes serious eye irritation
• H335: May cause respiratory irritation

Protective Measures:

• P261: Avoid breathing dust
• P305+P351+P338: Eye contact rinse procedure
• P302+P352: Skin contact washing instructions

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7. Quality Specifications

• Purity: ≥99% (GC)
• Moisture Content: ≤0.5%
• Ash Content: ≤0.1%

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Disclaimer:
This technical information is for professional use only. Proper ventilation and PPE are required during handling. Compliance with local chemical regulations is mandatory.