Phenylboronic acid pinacol ester
[CAS# 24388-23-6]

Identification

• Classification: Chemical reagent >> Organic reagent >> Borate
• Name: Phenylboronic acid pinacol ester
• Synonyms: 2-Phenyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolane; 4,4,5,5-Tetramethyl-2-phenyl-1,3,2-dioxaborolane; Phenylboronic acid pinacol ester; Phenylpinacolborane; Pinacol phenylboronate
• Molecular Formula: C₁₂H₁₇BO₂
• Molecular Weight: 204.07
• CAS Registry Number: 24388-23-6
• EC Number: 629-233-1

Properties

• Density: 0.99±0.1 g/cm³ (20 ºC 760 Torr), Calc.^*
• Melting point: 27-28 ºC^**
• Boiling point: 282.1±9.0 ºC (760 Torr), Calc.^*
• Flash point: 124.4±18.7 ºC, Calc.^*

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2014 ACD/Labs)

^** Morandi, Stefania; Tetrahedron: Asymmetry 2005, V16(17), P2918-2926.

Safety Data

• Hazard Symbols: Xn
• Risk Codes: R22;R36/37/38
• Safety Description: S26;S36

Hazard Classification

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