3,4-Dihydro-2H-pyran-5-boronic acid pinacol ester
[CAS# 1046811-99-7]

Identification

• Name: 3,4-Dihydro-2H-pyran-5-boronic acid pinacol ester
• Synonyms: 2-(3,4-Dihydro-2H-pyran-5-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
• Molecular Formula: C₁₁H₁₉BO₃
• Molecular Weight: 210.08
• CAS Registry Number: 1046811-99-7
• EC Number: 800-737-5

Properties

• Density: 1.01±0.1 g/cm³ (20 °C 760 Torr), Calc.^*
• Boiling point: 222.3±50.0 °C (760 Torr), Calc.^*
• Flash point: 88.3±30.1 °C, Calc.^*

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2015 ACD/Labs)

Safety Data

Hazard Classification

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