Two reactive handles
Suzuki coupling through boron, then further chemistry through the aldehyde.
4-FPBA
4-Formylphenylboronic Acid Supplier from China
4-Formylphenylboronic acid (4-FPBA) is an aryl boronic acid with an aldehyde group, used as a building block for pharmaceuticals and electronic materials. SUNCHEM supplies 4-formylphenylboronic acid in 25 kg drums with a batch COA on every shipment.
CAS 87199-17-5 · C₇H₇BO₃ · 4-Boronobenzaldehyde
- Lot COA with every shipment
- Samples for your trials
- Technical support for your trial
Product overview & key benefits
4-Formylphenylboronic acid carries two handles: the boronic acid couples to aryl halides in Suzuki–Miyaura reactions, and the aldehyde can then be reduced, oxidized, aminated or condensed. That makes it a common building block for biaryl pharmaceutical intermediates and for electronic materials such as OLED and liquid-crystal compounds.
Like other boronic acids, it can contain varying amounts of its cyclic anhydride (boroxine). The TDS states how assay is measured; agree the method before comparing offers.
Pharma and electronics
Used for biaryl drug intermediates and for OLED and liquid-crystal materials.
Specified on your terms
We quote against your assay method, impurity and moisture limits and send the batch COA for each lot.
Technical specifications
| Parameter | Typical value |
|---|---|
| Product name | 4-Formylphenylboronic Acid |
| Synonyms | 4-Boronobenzaldehyde; (4-formylphenyl)boronic acid |
| CAS No. | 87199-17-5 |
| Molecular formula | C₇H₇BO₃ |
| Molecular weight | 149.94 |
| Appearance | White to off-white powder |
| Packing | 25 kg drum |
Assay (and method), anhydride content, moisture and related-substance limits depend on the producer grade and are stated on the TDS and batch COA; the limits for your order are confirmed in the quotation and contract.
Applications by Industry
Where 4-formylphenylboronic acid is used, and what to confirm before you switch supply.
Pharmaceutical intermediates
A Suzuki-coupling building block for biaryl intermediates in drug synthesis.
Check before trial
- Synthesis step
- Assay method and impurity limits
- Documents your QA needs
OLED and electronic materials
Used to build conjugated molecules for OLED, liquid-crystal and other electronic materials.
Check before trial
- Purity and metal limits
- Lot size
- Sample for evaluation
Selection & comparison
Choosing the right 4-FPBA grade
| Your requirement | What usually works |
|---|---|
| Pharmaceutical synthesis | Specify assay method and related-substance limits |
| Electronic materials | Specify purity and metal-ion limits |
| Process development | Start with a sample lot and lock the spec after your trial |
| Replacing an existing supplier | Send your current TDS or COA; we quote against the parameters you approve |
Packaging & storage
Packaging
25 kg drums; smaller packs for evaluation on request.
Storage
Keep containers closed in a cool, dry place under inert gas if possible; the aldehyde slowly oxidizes in air.
From first email to approved supply
Name the end use
Pharma or electronics: purity and metal limits follow from it.
Compare the numbers that matter
Assay (HPLC or titration), anhydride content, moisture and the related substances that affect your coupling.
Protect the material
Store cool, dry and closed; the aldehyde oxidizes to the carboxylic acid over time.
Trial, then lock the spec
Run a sample in your own process and keep the approved lot COA as the reference for contract limits.
Tell us your requirement. We match the grade.
Tell us the reaction or product you use it in, the quantity and the destination port. Add your current specification and we will quote against it.
| Information | Example |
|---|---|
| Application | Pharma intermediate, OLED material |
| Required specification | Assay, impurities, moisture |
| Packaging | 25 kg drums or smaller packs |
| Quantity | Sample / trial order / annual volume |
| Destination | Country and port |
| Documents needed | COA, SDS, TDS, route statement if needed |
Related products
Phenyl-d5-boronic Acid
Deuterated phenyl building block for labeled molecules and OLED materials.
View product →4-Formylphenylboronic Acid FAQ
What is 4-formylphenylboronic acid used for?
As a building block in Suzuki coupling for pharmaceutical intermediates and electronic materials such as OLED and liquid-crystal compounds.
How is it packed?
In 25 kg drums; smaller packs are available for evaluation.
Why does assay vary between suppliers?
Boronic acids can contain their cyclic anhydride, and assay may be measured by HPLC or titration. Agree the method before comparing numbers.
Which parameters should I compare between offers?
Assay and method, anhydride content, moisture and related substances.
