1-(Tetrahydro-2H-pyran-4-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole

Also known as: 1-(4-Tetrahydropyranyl)-1H-pyrazole-4-boronic acid pinacol ester, 1-(Tetrahydro-2H-pyran-4-yl)pyrazole-4-boronic acid pinacol ester, 1-(Tetrahydropyran-4-yl)-1H-pyrazole-4-boronic acid pinacol ester, 1-(Tetrahydropyran-4-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole, 1-(oxan-4-yl)-4, 1-(oxan-4-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazole, 1-(oxan-4-yl)-4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole, 1H-Pyrazole, 1-(tetrahydro-2H-pyran-4-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-, 3-hydroxy-2,3-dimethylbutan-2-yl hydrogen (1-(tetrahydro-2H-pyran-4-yl)-1H-pyrazol-4-yl)boronate

1-(Tetrahydro-2H-pyran-4-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (CAS 1040377-03-4) 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 278.155 g/mol. Key properties include a melting point of 115 °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.: 1040377-03-4
Jingsj CID: J-1503387-1
Molecular Formula: C₁₄H₂₃BN₂O₃
Molecular Weight: 278.155 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	115 °C
Boiling Point	413.8±35.0 °C at 760 mmHg
Density	1.2±0.1 g/cm3
Flash Point	204.1±25.9 °C
Exact Mass	278.180176
PSA	45.51000
LogP	1.53380
Vapor Pressure	0.0±0.9 mmHg at 25°C
Refractive Index	1.545
Storage Conditions	2-8°C

Customs & Trade Information

HS Code	2934999090
Summary	2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 1-(Tetrahydro-2H-pyran-4-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole?

The CAS number of 1-(Tetrahydro-2H-pyran-4-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole is 1040377-03-4.

What are the molecular formula and molecular weight of 1-(Tetrahydro-2H-pyran-4-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole?

1-(Tetrahydro-2H-pyran-4-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole has molecular formula C14H23BN2O3 and molecular weight 278.155 g/mol.

What are the upstream and downstream products of 1-(Tetrahydro-2H-pyran-4-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole?

For 1-(Tetrahydro-2H-pyran-4-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole, Upstream Products: 4-bromo-1-(tetrahydro-2H-pyran-4-yl)-1H-pyrazole, Bis(pinacolato)diboron, 4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole.

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

Last updated: 8/21/2026

How to cite: Jingsj. "1-(Tetrahydro-2H-pyran-4-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (CAS 1040377-03-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1503387-1 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.