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VAQORABoronic Acids & EstersAvailable on request
Bis(pinacolato)diboron, 99%
Synonyms: 4,4,4',4',5,5,5',5'-Octamethyl-2,2'-bi-1,3,2-dioxaborolane · bis(pinacolato)diborane · Pinacol diborane · B2Pin2
CAS No.73183-34-3
FormulaC12H24B2O4
Mol. weight253.90
Catalogue No.VQ-011062
Purity99%
HSN29239000
Bis(pinacolato)diboron (CAS 73183-34-3) – boronic acid building block, 99%. C12H24B2O4, MW 253.9. Request a quote: COA, bulk packs and worldwide export.
Pack sizesPrice on quotation · bulk available
1 g
5 g
25 g
100 g
500 g
Bulk / custom pack · kg to MT
Enquire Batch COA with every lot
16-section GHS SDS
Export to 120+ countries
DG-compliant packing
About Bis(pinacolato)diboron, 99%
Bis(pinacolato)diboron (CAS 73183-34-3) is a boronic acid building block offered by Vaqora Chemicals with a typical assay of 99%. Formula C12H24B2O4, molecular weight 253.9 g/mol. Systematically, it is named 4,4,5,5-tetramethyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,3,2-dioxaborolane. Common synonyms include bis(pinacolato)diborane and Pinacol diborane.
In its supplied form it is white to almost white powder or crystals or chunks. Key physical data: a melting point of 135-142 °C. Recommended storage is at 2–8 °C, with the container kept tightly sealed. The GHS classification uses the signal word “Danger”, so appropriate gloves, eye protection and ventilation are recommended.
It is commonly used for catalysis, protein and peptide research and enzyme inhibition studies. Our customers for this product work in pharmaceutical manufacturing and academic and industrial research.
Available in 1 g, 5 g, 25 g and 100 g packs, Bis(pinacolato)diboron is dispatched with a Certificate of Analysis (COA) to destinations worldwide.
Typical applications
- Catalysis
- Protein & peptide research
- Enzyme inhibition studies
Industries
Specifications & identifiers
| Product name | Bis(pinacolato)diboron, 99% |
|---|---|
| Catalogue No. | VQ-011062 |
| CAS Number | 73183-34-3 |
| IUPAC name | 4,4,5,5-tetramethyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,3,2-dioxaborolane |
| Molecular formula | C12H24B2O4 |
| Molecular weight | 253.9 g/mol |
| Exact mass | 254.1861 |
| Purity / assay | 99% |
| HSN code | 29239000 |
| InChIKey | IPWKHHSGDUIRAH-UHFFFAOYSA-N |
| SMILES | B1(OC(C(O1)(C)C)(C)C)B2OC(C(O2)(C)C)(C)C |
| PubChem CID | 2733548 |
| Physical form | Crystalline |
|---|---|
| Appearance | White to almost white powder or crystals or chunks |
| Melting point | 135-142 °C |
| H-bond donors / acceptors | 0 / 4 |
| TPSA | 36.9 Ų |
| Storage | 2–8 °C |
| Synonyms | 4,4,4',4',5,5,5',5'-Octamethyl-2,2'-bi-1,3,2-dioxaborolane, bis(pinacolato)diborane, Pinacol diborane, B2Pin2, Diboron pinacol ester, Miyaura's reagent, 2,2'-Bi-1,3,2-dioxaborolane, 4,4,4',4',5,5,5',5'-octamethyl-, B(P)DB, 4,4,4',4',5,5,5',5'-Octamethyl-2,2'-bi(1,3,2-dioxaborolane), 4,4,5,5-tetramethyl-2-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1,3,2-dioxaborolane, dipinacol-diboron, bis(pinacolate)diboron |
Safety & hazard information (GHS)
Signal word: Danger
Hazard statements
H302Harmful if swallowedH314Causes severe skin burns and eye damageH315Causes skin irritationH317May cause an allergic skin reactionH319Causes serious eye irritationH332Harmful if inhaledH335May cause respiratory irritation
Precautionary statements: P260, P261, P264, P264 + P265, P270, P271, P272, P280, P301 + P317, P301 + P330 + P331, P302 + P352, P302 + P361 + P354, P304 + P340, P305 + P351 + P338, P305 + P354 + P338, P316, P317, P319, P321, P330, P332 + P317, P333 + P317, P337 + P317, P362 + P364
Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.
Documents
Frequently asked questions
What is the CAS number of Bis(pinacolato)diboron, 99%?
The CAS Registry Number of Bis(pinacolato)diboron, 99% is 73183-34-3. It is also known as 4,4,4',4',5,5,5',5'-Octamethyl-2,2'-bi-1,3,2-dioxaborolane, bis(pinacolato)diborane, Pinacol diborane.
What is the molecular formula and molecular weight of Bis(pinacolato)diboron, 99%?
Bis(pinacolato)diboron, 99% has the molecular formula C12H24B2O4 and a molecular weight of 253.9 g/mol. Its IUPAC name is 4,4,5,5-tetramethyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,3,2-dioxaborolane.
Which grade and pack sizes of Bis(pinacolato)diboron, 99% can I order?
We supply Bis(pinacolato)diboron, 99% in (99%) grade, in 1 g, 5 g, 25 g, 100 g, 500 g packs. Larger bulk quantities and custom packing are quoted on request.
Do you provide a COA and SDS with Bis(pinacolato)diboron, 99%?
Yes. Every lot of Bis(pinacolato)diboron, 99% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.
Can Bis(pinacolato)diboron, 99% be shipped internationally?
Yes. Bis(pinacolato)diboron, 99% is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.
How should Bis(pinacolato)diboron, 99% be stored?
2–8 °C. Keep the container tightly closed and refer to the SDS for full handling guidance.
Enquire about Bis(pinacolato)diboron, 99%
We reply within one business day with price, pack options, lead time and documentation.
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