(R)-3-cyclopentyl-3-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)propanenitrile

Also known as: (3R)-3-cyclopentyl-3-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl]propanenitrile, (3R)-3-cyclopentyl-3-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazol-1-yl]propanenitrile, (betaR)-beta-cyclopentyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole-1-propanenitrile, 1H-pyrazole-1-propanenitrile, β-cyclopentyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-, (βR)-, Ruxolitinib impurity I

(R)-3-cyclopentyl-3-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)propanenitrile (CAS 1146629-84-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C17H26BN3O2 and a molecular weight of 315.218 g/mol. Key properties include a boiling point of 471.8±25.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 239.1±23.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 1146629-84-6
Jingsj CID: J-1019042-8
Molecular Formula: C₁₇H₂₆BN₃O₂
Molecular Weight: 315.218 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	471.8±25.0 °C at 760 mmHg
Density	1.1±0.1 g/cm3
Flash Point	239.1±23.2 °C
Exact Mass	315.211823
PSA	60.07000
LogP	2.82728
Vapor Pressure	0.0±1.2 mmHg at 25°C
Refractive Index	1.561

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 (R)-3-cyclopentyl-3-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)propanenitrile?

The CAS number of (R)-3-cyclopentyl-3-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)propanenitrile is 1146629-84-6.

What are the molecular formula and molecular weight of (R)-3-cyclopentyl-3-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)propanenitrile?

(R)-3-cyclopentyl-3-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)propanenitrile has molecular formula C17H26BN3O2 and molecular weight 315.218 g/mol.

What are the upstream and downstream products of (R)-3-cyclopentyl-3-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)propanenitrile?

For (R)-3-cyclopentyl-3-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)propanenitrile, Upstream Products: (R)-3-(4-Bromo-1H-pyrazol-1-yl)-3-cyclopentylpropanenitrile, Bis(pinacolato)diboron; Downstream Products: Ruxolitinib.

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. "(R)-3-cyclopentyl-3-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)propanenitrile (CAS 1146629-84-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1019042-8 (accessed 2026-11-09).

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