Bis(pinacolato)diboron CAS:73183-34-3-custom synthesis contract manufacturing
Bis(pinacolato)diboron CAS:73183-34-3
Structural Formula Bis(pinacolato)diboron CAS:73183-34-3
Product Name Bis(pinacolato)diboron
Synonym 4,4,5,5-tetramethyl-2-(4,4,5,5 tetramethyl-1,3,2-dioxaborolan-2-yl)-1,3,2-dioxaborolane;4,4,5,5-tetramethyl-2-(4,4,5,5 tetramethyl-1,3,2-dioxaborolan-2-yl)-1,3,2-dioxaborolane;4,4,5,5-tetramethyl-2-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1,3,2-dioxaborolane
CAS No. 73183-34-3
Molecular Weight See details
Specifications Upon request
Packing Sea or Airworthy packing
Material Safety Data Sheet Upon request
Availability Please visit for our official company website or sending email to for more information.

Product Name: Bis(pinacolato)diboron
Other Name:
4,4,5,5-tetramethyl-2-(4,4,5,5 tetramethyl-1,3,2-dioxaborolan-2-yl)-1,3,2-dioxaborolane
CAS No: 73183-34-3
MF: C12H24B2O4
MW: 253.93900
Density: 0.97 g/cm3
Boiling point: 222.6ºC at 760 mmHg
Melting point: 137-140 °C(lit.)
Flash point: 88.4ºC
Refractive index: 1.432
UN Number: Non-dangerous goods
Transport hazard class: Non-dangerous goods
Packing group: Non-dangerous goods
Appearance: White powder
Assay: ≥99.0%
Water: ≤0.50%
Be used as pharmaceutical intermediate.
The bis-pinacol borate is a boron compound containing two pinacol structures. This compound is a commercially available reagent and is a commonly used substrate in organic synthesis for the preparation of various pinacol borate esters.
Cis-complex boronation reagent for acetylene and paraffin (platinum catalysis).
Palladium catalyzed boronation of aromatic compounds.
Palladium-catalyzed cyclization of 1,6-enyne produces a substrate in the reaction of homogeneously alkylboronates.
Package: 25kg/drum, can also be designed according to customer requirements.
Storage: Store in cool place. Keep container tightly closed in a dry and well-ventilated place.

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