1-(Tetrahydro-2H-pyran-2-yl)-1H-pyrazole-5-boronic acid pinacol ester

1-(2-四氢吡喃基)-1H-吡唑-5-硼酸频哪酯

Also known as: 1-(Tetrahydropyran-2-yl)-1H-pyrazole-5-boronic acid pinacol ester, 1-(oxan-2-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole, 1-(tetrahydro-2H-pyran-2-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole, Pinacol 1-(Oxan-2-yl)-5-pyrazole-boronate, 1-tetrahydropyran-1H-pyrazolylboronic ester, 1-THP-Pyrazole-5-boronic acid pinacol ester, 1-(2-Tetrahydropyranyl)-1H-pyrazole-5-boronic acid pinacol ester

1-(Tetrahydro-2H-pyran-2-yl)-1H-pyrazole-5-boronic acid pinacol ester (CAS 903550-26-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C14H23BN2O3 and a molecular weight of 278.16 g/mol. It is also known as 1-(Tetrahydropyran-2-yl)-1H-pyrazole-5-boronic acid pinacol ester, 1-(oxan-2-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole and 1-(tetrahydro-2H-pyran-2-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole. Key properties include a melting point of 76 °C, a boiling point of 413.8±35.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 204.1±25.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
903550-26-5
Jingsj CID
J-1960303-2
Molecular Formula
C14H23BN2O3
Chinese Name
1-(2-四氢吡喃基)-1H-吡唑-5-硼酸频哪酯
Molecular Weight
278.16 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point76 °C
Boiling Point413.8±35.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point204.1±25.9 °C

Frequently Asked Questions

What is the CAS number of 1-(Tetrahydro-2H-pyran-2-yl)-1H-pyrazole-5-boronic acid pinacol ester?

The CAS number of 1-(Tetrahydro-2H-pyran-2-yl)-1H-pyrazole-5-boronic acid pinacol ester is 903550-26-5.

What are the molecular formula and molecular weight of 1-(Tetrahydro-2H-pyran-2-yl)-1H-pyrazole-5-boronic acid pinacol ester?

1-(Tetrahydro-2H-pyran-2-yl)-1H-pyrazole-5-boronic acid pinacol ester has molecular formula C14H23BN2O3 and molecular weight 278.16 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "1-(Tetrahydro-2H-pyran-2-yl)-1H-pyrazole-5-boronic acid pinacol ester (CAS 903550-26-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1960303-2 (accessed 2026-10-25).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.