3,4-(Methylenedioxy)phenylacetic acid
3,4-(Methylenedioxy)phenylacetic acid (CAS: 2861-28-1), also known as Homopiperonylic acid, is an organic compound with the molecular formula C9H8O4 and a molar mass of 180.16 g/mol. This chemical serves as a valuable building block in organic synthesis. Its structure, featuring a phenylacetic acid core with a methylenedioxy substituent, makes it a useful intermediate in the creation of more complex molecules for research and development purposes. It is supplied by Tech Serve Solutions with an assay of ≥97.0%.
- IUPAC
- 1,3-Benzodioxole-5-acetic acid,Homopiperonylic acid
- Synonyms
- 1,3-Benzodioxole-5-acetic acidHomopiperonylic acid

Organic Synthesis Intermediate
3,4-(Methylenedioxy)phenylacetic acid is utilised as a key intermediate in the synthesis of various organic compounds. Its functional groups allow for diverse chemical transformations, supporting complex molecular construction in research laboratories.
Research and Development
This compound finds application in R&D settings, providing a structured aromatic core for the development of novel chemical entities. It is instrumental in exploring new synthetic pathways and molecular architectures.
Building Block for Specialty Chemicals
As a versatile building block, 3,4-(Methylenedioxy)phenylacetic acid contributes to the production of specialty chemicals. Its unique methylenedioxy motif is leveraged in targeted synthetic strategies.
| Molecular weight | 180.16 |
|---|---|
| Empirical formula | C9H8O4 |
| Assay | ≥97.0% (T) |
| Melting point | 125-129 °C(lit.)125-129 °C |

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) | 3 |
| 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-(Methylenedioxy)phenylacetic acid used for?
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3,4-(Methylenedioxy)phenylacetic acid is primarily used as a building block and intermediate in organic synthesis, particularly in research and development for creating complex molecules and specialty chemicals.
What is the CAS number and chemical formula for 3,4-(Methylenedioxy)phenylacetic acid?
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The CAS number is 2861-28-1 and the chemical formula is C9H8O4 (Empirical formula in Hill notation).
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3,4-(Methylenedioxy)phenylacetic acid with a minimum assay of ≥97.0% (T). We do not represent this product as meeting USP, BP, or EP pharmacopoeia standards unless explicitly stated.
What are the safety and handling precautions for this compound?
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This compound is classified with GHS07 signal word 'Warning' and hazard statements H315 (Causes skin irritation), H319 (Causes serious eye irritation), and H335 (May cause respiratory irritation). Appropriate personal protective equipment, including a dust mask type N95, eyeshields, and gloves, should be used. Handle in a well-ventilated area.
How is 3,4-(Methylenedioxy)phenylacetic acid packed, shipped, and exported?
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3,4-(Methylenedioxy)phenylacetic acid is carefully packed and available for global export by Tech Serve Solutions, adhering to all relevant shipping regulations for chemical products.
How can I request a sample or quote for 3,4-(Methylenedioxy)phenylacetic acid?
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To request a sample or a quote for 3,4-(Methylenedioxy)phenylacetic acid, please contact our sales team through the website or directly via email/phone, providing your specific requirements.
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