3-(3,5-Dimethoxybenzyloxy)phenylboronic acid
3-(3,5-Dimethoxybenzyloxy)phenylboronic acid (CAS: 870718-09-5) is a specialized aryl boronic acid derivative with a molecular weight of 288.10 g/mol. This compound is primarily utilised in organic synthesis as a building block. Its structure allows for participation in various cross-coupling reactions, making it a valuable reagent for the construction of complex organic molecules, particularly in the fields of medicinal chemistry and materials science.
- IUPAC
- 3-(3′,5′-Dimethoxybenzyloxy)phenylboronic acid
- Synonyms
- 3-(3′,5′-Dimethoxybenzyloxy)phenylboronic acid

Organic Synthesis Reagent
As an aryl boronic acid, this compound is a key intermediate in Suzuki-Miyaura cross-coupling reactions. It facilitates the formation of carbon-carbon bonds, enabling the synthesis of substituted biaryls and other complex aromatic structures.
Medicinal Chemistry
Its utility in constructing novel molecular scaffolds makes it relevant for the development of new pharmaceutical agents. Researchers can incorporate this moiety into potential drug candidates for various therapeutic areas.
Materials Science
The compound can be employed in the synthesis of functional organic materials, such as those used in organic electronics or advanced polymers, where precise structural control is required.
| Molecular weight | 288.10 |
|---|---|
| Linear formula | C6H4OCH2C6H3(OCH3)2B(OH)2 |
| Melting point | 100-105 °C(lit.) |

Hazard statements
- H302Harmful if swallowed
- H312Harmful in contact with skin
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- 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) | 20/21/22-36/37/38 |
| 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-(3,5-Dimethoxybenzyloxy)phenylboronic acid used for?
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3-(3,5-Dimethoxybenzyloxy)phenylboronic acid is primarily used as a reagent in organic synthesis, particularly for Suzuki-Miyaura cross-coupling reactions, and finds applications in medicinal chemistry and materials science.
What is the CAS number and formula for this compound?
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The CAS number is 870718-09-5, and its linear formula is C<sub>6</sub>H<sub>4</sub>OCH<sub>2</sub>C<sub>6</sub>H<sub>3</sub>(OCH<sub>3</sub>)<sub>2</sub>B(OH)<sub>2</sub>.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this chemical for research and development purposes. The specific grade and purity are detailed in the product's specification sheet; it is not supplied as USP, BP, EP, or pharmacopoeia grade.
What are the safety and handling precautions for this chemical?
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This compound is classified as harmful if swallowed, in contact with skin, or if inhaled, and causes skin and eye irritation, as well as respiratory irritation. Handle with appropriate personal protective equipment, including a dust mask (type N95 or equivalent), eyeshields, and gloves. Ensure adequate ventilation and avoid dust formation. Refer to the Safety Data Sheet (SDS) for full details.
How is 3-(3,5-Dimethoxybenzyloxy)phenylboronic acid typically supplied and exported?
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Tech Serve Solutions, as a global supplier, can arrange for the packing and export of this chemical in accordance with international shipping regulations for laboratory reagents.
How can I request a sample or quote for this chemical?
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To request a sample or obtain a quote, please use the contact form on our website or reach out to our sales department directly, referencing the product name and CAS number.
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