Phenylboronic acid MIDA ester
Phenylboronic acid MIDA ester (CAS: 109737-57-7; Formula: C11H12BNO4; MW: 233.03) is an organometallic reagent. It is a valuable building block in organic synthesis, particularly for Suzuki-Miyaura cross-coupling reactions. This compound serves as a stable and easily handled precursor to phenylboronic acid, enabling the formation of carbon-carbon bonds in complex molecule construction for various research and development applications.
- IUPAC
- 6-Methyl-2-phenyl-1,3,6,2-dioxazaborocane-4,8-dione

Suzuki-Miyaura Cross-Coupling Reactions
Phenylboronic acid MIDA ester is frequently employed as a coupling partner in Suzuki-Miyaura reactions. It facilitates the formation of new carbon-carbon bonds, which is crucial for the synthesis of biaryl compounds and other complex organic structures.
Organic Synthesis Building Block
This compound acts as a versatile intermediate in various synthetic routes. Its MIDA ester protection allows for controlled reactivity, making it suitable for the preparation of pharmaceuticals, agrochemicals, and advanced materials.
Research and Development
Used in academic and industrial research laboratories for exploring novel synthetic methodologies and developing new chemical entities. Its stability and predictable reactivity make it a reliable reagent for chemical discovery.
| Molecular weight | 233.03 |
|---|---|
| Empirical formula | C11H12BNO4 |
| Assay | 95% |
| Application | Excludes solvent of crystallization. May containup to 10 wt. % DMSO. |
| Melting point | 166-170 °C |

Hazard statements
- H301Toxic if swallowed
Precautionary statements
- P301IF SWALLOWED
| Protective equipment | Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 2811 6.1 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T |
| Risk statements (R) | 25 |
| Safety statements (S) | 45 |
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 Phenylboronic acid MIDA ester used for?
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Phenylboronic acid MIDA ester is primarily used as a building block in organic synthesis, particularly for Suzuki-Miyaura cross-coupling reactions to form carbon-carbon bonds and in the preparation of complex organic molecules.
What is the CAS number and formula for Phenylboronic acid MIDA ester?
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The CAS number is 109737-57-7 and the empirical formula (Hill notation) is C11H12BNO4.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Phenylboronic acid MIDA ester with an assay of 95%. We do not represent this product as USP, BP, or EP grade.
How should Phenylboronic acid MIDA ester be handled?
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Phenylboronic acid MIDA ester is classified as Danger, H301 (Toxic if swallowed). Handle with appropriate personal protective equipment, including eyeshields, faceshields, gloves, and a type P2 respirator cartridge (EN 143). In case of accidental exposure, seek immediate medical attention (P301 + P310).
Is Phenylboronic acid MIDA ester exported by TSS?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including Phenylboronic acid MIDA ester.
How can I request a sample or quote for Phenylboronic acid MIDA ester?
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To request a sample or quote, please contact our sales team through the provided channels on the Tech Serve Solutions website.
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