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

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

3-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (CAS 936250-20-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H17BN2O2 and a molecular weight of 208.065 g/mol. Key properties include a melting point of 129-134ºC, a boiling point of 350.3±30.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 165.6±24.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
936250-20-3
Jingsj CID
J-1523391-7
Molecular Formula
C10H17BN2O2
Molecular Weight
208.065 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point129-134ºC
Boiling Point350.3±30.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point165.6±24.6 °C
Exact Mass208.138306
PSA47.14000
LogP1.01730
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.488
Storage Conditions2~8℃

Customs & Trade Information

HS Code2934999090
Summary2934999090. 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 3-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole?

The CAS number of 3-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole is 936250-20-3.

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

3-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole has molecular formula C10H17BN2O2 and molecular weight 208.065 g/mol.

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

Last updated:

How to cite: Jingsj. "3-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (CAS 936250-20-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1523391-7 (accessed 2026-11-09).

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