3,5-Dimethoxy-4-hydroxyphenylacetic acid
3,5-Dimethoxy-4-hydroxyphenylacetic acid (CAS 4385-56-2), a carboxylic acid with the molecular formula C10H12O5 and a molecular weight of 212.20 g/mol, serves as a valuable building block in organic synthesis. Its structure, featuring methoxy and hydroxyl substituents on a phenylacetic acid core, makes it useful in the creation of more complex molecules for research and development. This compound is offered by TSS with a minimum assay of 97%.
- Synonyms
- C10H12O53,5-Dimethoxy-4-hydroxyphenylacetic acid

Organic Synthesis Intermediate
Utilised as a key intermediate in the synthesis of complex organic molecules. Its functional groups allow for diverse chemical transformations, making it valuable in the development of novel compounds for pharmaceutical and material science research.
Research and Development
A useful reagent for academic and industrial research laboratories. It enables chemists to explore new synthetic pathways and construct target molecules with specific structural features.
Fine Chemical Building Block
Serves as a foundational component in the production of various fine chemicals. Its specific substitution pattern is beneficial for targeted synthesis projects.
| Molecular weight | 212.20 |
|---|---|
| Empirical formula | C10H12O5 |
| Assay | 97% |
| Melting point | 127-131 °C(lit.) |

Hazard statements
- H302Harmful if swallowed
- H319Causes serious eye irritation
Precautionary statements
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-36 |
| Safety statements (S) | 26-36/37 |
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 3,5-Dimethoxy-4-hydroxyphenylacetic acid used for?
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3,5-Dimethoxy-4-hydroxyphenylacetic acid is primarily used as a building block and intermediate in organic synthesis for research and development purposes.
What are the CAS number and formula for 3,5-Dimethoxy-4-hydroxyphenylacetic acid?
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The CAS number is 4385-56-2 and the empirical formula is C10H12O5.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3,5-Dimethoxy-4-hydroxyphenylacetic acid with a minimum assay of 97%. We do not represent this product as USP, BP, or EP grade.
What are the main safety hazards associated with this compound?
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This compound is harmful if swallowed (H302) and causes serious eye irritation (H319). Appropriate personal protective equipment, including a dust mask type N95, eyeshields, and gloves, should be worn during handling.
How is this chemical packed, shipped, and exported?
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Tech Serve Solutions, as a specialist global supplier and exporter, ensures appropriate packaging and documentation for the safe and compliant shipment of chemicals worldwide.
How can I request a quote or sample?
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To request a quote or sample, please contact our sales team through the TSS website or by calling our customer service number.
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