3,4,5-Trimethoxyphenylacetic acid
3,4,5-Trimethoxyphenylacetic acid (CAS 951-82-6) is an organic compound with the linear formula (CH₃O)₃C₆H₂CH₂CO₂H and a molecular weight of 226.23 g/mol. This carboxylic acid derivative, featuring a trimethoxyphenyl group, serves as a valuable building block in organic synthesis. It is utilised in the development of more complex molecules and research endeavours, adhering to high standards of chemical purity.
- Synonyms
- 951-82-6, (CH3O)3C6H2CH2CO2H

Organic Synthesis Intermediate
This compound functions as a key intermediate in the synthesis of various organic molecules. Its structure allows for further functionalisation and incorporation into complex chemical architectures.
Research and Development
Utilised in academic and industrial research laboratories, 3,4,5-Trimethoxyphenylacetic acid is employed in the exploration of novel chemical pathways and the discovery of new compounds.
Building Block for Fine Chemicals
As a versatile building block, it is integral to the production of fine chemicals and specialised reagents. Its specific structural features are leveraged in multi-step syntheses.
| Molecular weight | 226.23 |
|---|---|
| Linear formula | (CH3O)3C6H2CH2CO2H |
| Assay | 97% |
| Melting point | 117-120 °C(lit.) |

Hazard statements
- H315Causes skin irritation
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 38 |
| Safety statements (S) | 22-24/25 |
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-Trimethoxyphenylacetic acid used for?
+
3,4,5-Trimethoxyphenylacetic acid is primarily used as an intermediate and building block in organic synthesis and research and development.
What is the CAS number and formula for 3,4,5-Trimethoxyphenylacetic acid?
+
The CAS number is 951-82-6, and the linear formula is (CH₃O)₃C₆H₂CH₂CO₂H.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies 3,4,5-Trimethoxyphenylacetic acid with an assay of 97%. We do not represent this product as USP, BP, or EP grade.
How should 3,4,5-Trimethoxyphenylacetic acid be handled safely?
+
Handle 3,4,5-Trimethoxyphenylacetic acid with appropriate personal protective equipment, including a dust mask type N95 (US), eyeshields, and gloves. This compound is classified as a Warning with H315 (Causes skin irritation).
Is 3,4,5-Trimethoxyphenylacetic acid a controlled substance?
+
The provided data does not indicate that 3,4,5-Trimethoxyphenylacetic acid is a controlled substance.
How is 3,4,5-Trimethoxyphenylacetic acid packed and exported?
+
3,4,5-Trimethoxyphenylacetic acid is carefully packed and exported by Tech Serve Solutions, a specialist global supplier, ensuring safe transit for research and industrial applications.
How can I request a quote or sample for 3,4,5-Trimethoxyphenylacetic acid?
+
Please contact Tech Serve Solutions directly through our website or sales department to request a quote or a sample of 3,4,5-Trimethoxyphenylacetic acid.
▶ Related products

1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis

1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis