3,4,5-Trimethoxybenzoic acid
3,4,5-Trimethoxybenzoic acid (CAS: 118-41-2), with the molecular formula (CH3O)3C6H2CO2H and a molecular weight of 212.20 g/mol, is a valuable organic compound. It functions as a key building block in chemical synthesis, particularly within the realm of organic chemistry. This carboxylic acid derivative is recognised for its utility in constructing more complex molecular architectures, finding applications in research and development settings.
- IUPAC
- Gallic acid trimethyl ether,Trimethylgallic acid
- Synonyms
- 118-41-2Gallic acid trimethyl etherTrimethylgallic acid

Organic Synthesis Intermediate
3,4,5-Trimethoxybenzoic acid serves as a crucial intermediate in the synthesis of various organic compounds. Its functional groups allow for diverse chemical transformations, making it valuable in research laboratories.
Building Block for Complex Molecules
This compound is employed as a foundational building block in the construction of larger, more intricate molecules. Its structure is often incorporated into target compounds during multi-step synthetic pathways.
Research and Development
Widely used in academic and industrial research, 3,4,5-Trimethoxybenzoic acid aids in exploring new chemical reactions and developing novel materials or pharmaceutical candidates.
| Molecular weight | 212.20 |
|---|---|
| Linear formula | (CH3O)3C6H2CO2H |
| Assay | 99% |
| Grade | ReagentPlus® |
| Boiling point | 225-227 °C/10 mmHg(lit.) |
| Melting point | 168-171 °C(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
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 3,4,5-Trimethoxybenzoic acid used for?
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3,4,5-Trimethoxybenzoic acid is primarily used as a building block and intermediate in organic synthesis and chemical research.
What is the CAS number and formula for 3,4,5-Trimethoxybenzoic acid?
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The CAS number is 118-41-2, and its linear formula is (CH3O)3C6H2CO2H.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3,4,5-Trimethoxybenzoic acid at a ReagentPlus® grade with an assay of 99%. We do not represent this product as USP, BP, or EP grade.
How should 3,4,5-Trimethoxybenzoic acid be handled?
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Handle with appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, and gloves. Avoid breathing dust and ensure adequate ventilation, as it may cause skin, eye, and respiratory irritation (H315, H319, H335).
How is this chemical packed and shipped?
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3,4,5-Trimethoxybenzoic acid is available for prompt dispatch and export globally from Tech Serve Solutions.
How can I request a sample or quote?
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To request a sample or obtain a quotation for 3,4,5-Trimethoxybenzoic acid, please contact our sales team via the website.
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