Product Name: 3,4,5-Trimethoxybenzoic Acid
Alias: Gallic acid trimethyl ether; Trimethoxybenzoic acid; Gallotannic acid trimethyl ether;
CAS No: 118-41-2
Molecular Formula: C₁₀H₁₂O₅
Molecular Weight: 212.2
Structural Formula:

Appearance: White lustrous crystalline powder.
Storage: Store protected from light in a sealed container
Packaging: 25 kgs/drum
Capacity: 200 MT/year
Specification: Purity ≥99%

Main Applications of 3,4,5-Trimethoxybenzoic Acid (CAS: 118-41-2)
1. Pharmaceutical Intermediate (Primary Application)
Synthesis of trimethoprim (TMP): Antibacterial potentiator, used with sulfonamide drugs for broad-spectrum antibacterial activity
Synthesis of trimetazidine: Anti-angina and myocardial ischemia protection drug
Precursor for antiparasitic, antitumor, and anti-inflammatory drugs
Key building block for vitamins and alkaloid drugs

2. Pesticides and Veterinary Drugs
Intermediate for high-efficiency, low-toxicity insecticides, fungicides, and herbicides
Raw material for antibacterial and anticoccidial veterinary drugs

3. Fragrances and Personal Care
Preparation of trimethoxybenzaldehyde and vanillin derivatives
Used in fragrances, fixatives, and cosmetic additives

4. Organic Synthesis and Materials
Standard synthesis building block for multi-substituted benzene rings
Liquid crystal materials, photosensitive materials, polymer additives
Metal chelating ligands, catalyst ligands

5. Analysis and Research
Pharmaceutical impurity reference standards
Organic synthesis reaction research reagents