1,4-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzene
[CAS# 99770-93-1]

Identification

• Name: 1,4-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzene
• Synonyms: 1,4-Phenylenebis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane); 4-Benzenediboronic acid bis (pinacol) ester
• Molecular Formula: C₁₈H₂₈B₂O₄
• Molecular Weight: 330.03
• CAS Registry Number: 99770-93-1
• EC Number: 691-283-5

Properties

• Density: 1.03±0.1 g/cm³ (20 °C 760 Torr), Calc.^*
• Melting point: 245.3 °C (hexane )^**

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2019 ACD/Labs)

^** Ong, Beng S.

Safety Data

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Acute toxicity	Acute Tox.	4	H312
Acute toxicity	Acute Tox.	4	H332
Acute toxicity	Acute Tox.	4	H302
Eye irritation	Eye Irrit.	2	H319
Skin irritation	Skin Irrit.	2	H315
Specific target organ toxicity - single exposure	STOT SE	3	H335