2-Formylphenylboronic acid
2-Formylphenylboronic acid (CAS: 40138-16-7) is an organic compound with the linear formula HCOC<sub>6</sub>H<sub>4</sub>B(OH)<sub>2</sub> and a molecular weight of 149.94 g/mol. This chemical, characterised as an aldehyde and boronic acid derivative, serves as a valuable building block in organic synthesis. It is frequently employed in the development of complex organic molecules and pharmaceutical intermediates, contributing to advancements in chemical research and development.
- IUPAC
- 2-(Dihydroxyboryl)benzaldehyde,2-Formylbenzeneboronic acid,2-Boronobenzaldehyde,o-Formylbenzeneboronic acid,o-Formylphenylboronic acid,NSC 157839
- Synonyms
- 2-(Dihydroxyboryl)benzaldehyde2-Formylbenzeneboronic acid2-Boronobenzaldehydeo-Formylbenzeneboronic acido-Formylphenylboronic acidNSC 157839

Organic Synthesis Intermediate
2-Formylphenylboronic acid is a key intermediate in various organic transformations. Its bifunctional nature allows for diverse chemical reactions, making it useful in constructing more complex molecular architectures.
Pharmaceutical Research
This compound acts as a building block in the synthesis of potential pharmaceutical agents. Its structure is amenable to modifications for creating novel drug candidates.
Material Science
The unique chemical properties of 2-Formylphenylboronic acid can be leveraged in the development of new materials, potentially in areas requiring specific functional group incorporation.
| Molecular weight | 149.94 |
|---|---|
| Linear formula | HCOC6H4B(OH)2 |
| Assay | ≥95.0% |
| Grade | technical |
| Storage temperature | 2-8°C |
| Melting point | 115-120 °C(lit.) |

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 2-Formylphenylboronic acid used for?
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2-Formylphenylboronic acid is primarily used as a versatile building block in organic synthesis, particularly in the development of pharmaceutical intermediates and complex organic molecules. It is also employed in material science research.
What is the CAS number and molecular formula for 2-Formylphenylboronic acid?
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The CAS number for 2-Formylphenylboronic acid is 40138-16-7. Its linear formula is HCOC6H4B(OH)2.
What grade and purity does Tech Serve Solutions supply for 2-Formylphenylboronic acid?
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Tech Serve Solutions supplies 2-Formylphenylboronic acid in technical grade with an assay of ≥95.0%. We do not represent this product as USP, BP, or EP grade.
How should 2-Formylphenylboronic acid be handled safely?
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2-Formylphenylboronic acid is classified with Warning as a signal word, with hazards H315 (causes skin irritation), H319 (causes serious eye irritation), and H335 (may cause respiratory irritation). Appropriate personal protective equipment, including a dust mask (N95 US recommended), eyeshields, and gloves, should be worn. Ensure adequate ventilation.
How is 2-Formylphenylboronic acid packed, shipped, and exported?
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2-Formylphenylboronic acid is typically stored at 2-8°C. TSS, as a global supplier and exporter, ensures compliant packaging and shipping procedures for this chemical.
How can I request a quote or sample for 2-Formylphenylboronic acid?
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To request a quote or sample of 2-Formylphenylboronic acid, please contact the TSS sales team through our official channels.
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