5-Methyl-1-phenyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole

5-甲基-1-苯基-4-(4,4,5,5-四甲基-1,3,2-二氧硼烷)吡唑

Also known as: 5-Methyl-1-phenyl-1H-pyrazole-4-boronic acid pinacol ester, 2-(5-Methyl-1-phenyl-1H-pyrazol-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, 5-Methyl-1-phenyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazole

5-Methyl-1-phenyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (CAS 849776-88-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C16H21BN2O2 and a molecular weight of 284.16100 g/mol. It is also known as 5-Methyl-1-phenyl-1H-pyrazole-4-boronic acid pinacol ester, 2-(5-Methyl-1-phenyl-1H-pyrazol-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane and 5-Methyl-1-phenyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazole. Key properties include a melting point of 109.5-112ºC, a boiling point of 404.6ºC at 760 mmHg, a density of 1.07g/cm3 and a flash point of 198.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

849776-88-1

Jingsj CID

J-934560-7

Molecular Formula

C₁₆H₂₁BN₂O₂

Chinese Name

5-甲基-1-苯基-4-(4,4,5,5-四甲基-1,3,2-二氧硼烷)吡唑

Molecular Weight

284.16100 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026