Molekula
Diboronic acid
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Diboronic acid (B₂H₄O₄, CAS 13675-18-8) is a versatile boron-containing compound primarily used in organic synthesis, particularly for Suzuki coupling reactions, and in the preparation of boronate esters for materials science applications. It appears as a white crystalline solid with a molecular weight of 89.65 g/mol, requiring ambient storage conditions. The product carries a signal word of *Warning* for safety handling. Molekula supplies diboronic acid from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
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Specifications
| Property | Value |
|---|---|
| Appearance | White to off-white solid |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 90034653 |
| CAS Number | 13675-18-8 |
| IUPAC Name | hypoboric acid |
| Molecular Formula | B2H4O4 |
| Molecular Weight | 89.65 |
| Exact Mass | 90.0296 |
| SMILES | B(B(O)O)(O)O |
| InChIKey | SKOWZLGOFVSKLB-UHFFFAOYSA-N |
| InChI | InChI=1S/B2H4O4/c3-1(4)2(5)6/h3-6H |
| PubChem CID | 10986154 |
| REACH Code | Y110 |
| HTS Code | 28100000 |
| Tariff Code | 2810009000 |
Safety & GHS
-
Health Hazard
GHS07
Hazard statements
- H302 Harmful if swallowed
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H332 Harmful if inhaled
- H335 May cause respiratory irritation
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P264 Wash thoroughly after handling
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P302+352 IF ON SKIN: Wash with soap and water
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- (dihydroxyboranyl)boronic acid
- (HO)BH-O-BH(OH)
- Diborane(4), 1,1,2,2-tetrahydroxy-
- Diborane(4), tetrahydroxy-
- Diboron tetrahydroxide
- Hypoboric Acid
- hypodiboric acid
- Subboric acid
- tetrahydroxydiborane
- Tetrahydroxydiboron
Frequently asked questions
What is diboronic acid commonly used for?
Diboronic acid is primarily used in organic synthesis, particularly for forming boronate esters in Suzuki-Miyaura cross-coupling reactions, and as a reagent in the preparation of boron-containing polymers and pharmaceutical intermediates.
What is the chemical formula and molecular weight of diboronic acid?
The chemical formula is **B₂H₄O₄** with a molecular weight of **89.65 g/mol**.
How should diboronic acid be stored?
Store diboronic acid at **ambient temperature** in a tightly sealed container, away from moisture and incompatible substances.
What grades of diboronic acid does Molekula supply?
Molekula supplies diboronic acid in **reagent-grade purity**, suitable for research and development applications.
Can Molekula supply diboronic acid in bulk quantities?
Yes, Molekula can provide diboronic acid in bulk, with quantities tailored to your specific requirements—please contact us for pricing and availability.
What documentation comes with an order of diboronic acid?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS), and a product specification sheet detailing purity, CAS number, and handling instructions.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.