Bis(pinacolato)diboron (73183-34-3),Bis(pinacolato)diboron (73183-34-3) Manufacturers & Suppliers,Synthesis,MSDS

Basic information

Name:
Bis(pinacolato)diboron
CAS No.:
73183-34-3
Molecular Structure:
Formula:
C₁₂H₂₄B₂O₄
Molecular Weight:
253.94
Synonyms:
Bis(pinacolato)diborane;4,4,4′,4′,5,5,5′,5′-octamethyl-2,2′-bi-1,3,2-dioxaborolane;Pinacol diborane;
Density:
0.977 g/cm³
Melting Point:
137-140 °C(lit.)
Boiling Point:
222.595 °C at 760 mmHg
Flash Point:
88.423 °C
Appearance:
white crystal powder
Hazard Symbols:
Xn, Xi
Risk Codes:
36/37/38-20/21/22
Safety Description:
26-37/39-36 Details

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Chemistry

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: 253.94 g/mol
SMILES: O1B(OC(C)(C)C1(C)C)B2OC(C)(C)C(O2)(C)C Copy
InChI: InChI=1/C12H24B2O4/c1-9(2)10(3,4)16-13(15-9)14-17-11(5,6)12(7,8)18-14/h1-8H3
Product Categories: Pharmaceutical Intermediates; Boron Compounds; blocks; BoronicAcids; Miscellaneous; Small molecule; Aliphatics; Boronic Acids & Esters; DIBORON SERIES; Reagent; Organoborons; Diboron Esters; B (Classes of Boron Compounds); CHIRAL CHEMICALS; Boronic Acids & Esters
Melting Point: 137-140 °C(lit.)
storage temperature: 0-6 °C
Index of Refraction: 1.432
Molar Refractivity: 67.45 cm³
Molar Volume: 259.8 cm³
Surface Tension: 25.9 dyne/cm
Density: 0.97 g/cm³
Flash Point: 88.4 °C
Enthalpy of Vaporization: 44.04 kJ/mol
Boiling Point: 222.6 °C at 760 mmHg
Vapour Pressure of Bis(pinacolato)diboron (CAS NO.73183-34-3): 0.15 mmHg at 25 °C

Uses

Bis(pinacolato)diboron (CAS NO.73183-34-3) is mainly used as organic reagents, pharmaceutical intermediates, pharmaceutical intermediates.

Safety Profile

Hazard Codes: Irritant Xi, Harmful Xn
Risk Statements: 36/37/38-20/21/22
R36/37/38:Irritating to eyes, respiratory system and skin.
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed.
Safety Statements: 26-37/39-36
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S37/39:Wear suitable gloves and eye/face protection.
S36:Wear suitable protective clothing.
WGK Germany: 3
Hazard Note: Irritant
HazardClass of Bis(pinacolato)diboron (CAS NO.73183-34-3): IRRITANT, IRRITANT-HARMFUL, KEEP COLD

Specification

Bis(pinacolato)diboron (CAS NO.73183-34-3), its Synonyms are 2,2'-bi-1,3,2-dioxaborolane, 4,4,4',4',5,5,5',5'-octamethyl- ; 4,4,4',4',5,5,5',5'-Octamethyl-2,2'-bi-1,3,2-dioxaborolane ; 4,4,4',4',5,5,5',5'-Octamethyl-2,2'-bi(1,3,2-dioxaborolane) ; Diboron pinacol ester . It is white crystal powder.