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(R)-3-(4-Bromo-1H-pyrazol-1-yl)-3-cyclopentylpropanenitrile

Also known as: (betaR)-4-Bromo-beta-cyclopentyl-1H-pyrazole-1-propanenitrile, (3R)-3-(4-Bromo-1H-pyrazol-1-yl)-3-cyclopentylpropanenitrile, (R)-3-(4-bromopyrazol-1-yl)-3-cyclopentylpropanenitrile, 1H-Pyrazole-1-propanenitrile, 4-bromo-β-cyclopentyl-, (βR)-, Ruxolitinib intermediate, Ruxolitinib Impurity I

(R)-3-(4-Bromo-1H-pyrazol-1-yl)-3-cyclopentylpropanenitrile (CAS 1146629-83-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H14BrN3 and a molecular weight of 268.153 g/mol. Key properties include a boiling point of 394.2±22.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 192.2±22.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1146629-83-5
Jingsj CID
J-1019041-7
Molecular Formula
C11H14BrN3
Molecular Weight
268.153 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point394.2±22.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point192.2±22.3 °C
Exact Mass267.037109
PSA41.61000
LogP2.78
Vapor Pressure0.0±0.9 mmHg at 25°C
Refractive Index1.648

Customs & Trade Information

HS Code2933199090
Summary2933199090. other compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure. 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-(4-Bromo-1H-pyrazol-1-yl)-3-cyclopentylpropanenitrile?

The CAS number of (R)-3-(4-Bromo-1H-pyrazol-1-yl)-3-cyclopentylpropanenitrile is 1146629-83-5.

What are the molecular formula and molecular weight of (R)-3-(4-Bromo-1H-pyrazol-1-yl)-3-cyclopentylpropanenitrile?

(R)-3-(4-Bromo-1H-pyrazol-1-yl)-3-cyclopentylpropanenitrile has molecular formula C11H14BrN3 and molecular weight 268.153 g/mol.

What are the upstream and downstream products of (R)-3-(4-Bromo-1H-pyrazol-1-yl)-3-cyclopentylpropanenitrile?

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

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

Last updated:

How to cite: Jingsj. "(R)-3-(4-Bromo-1H-pyrazol-1-yl)-3-cyclopentylpropanenitrile (CAS 1146629-83-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1019041-7 (accessed 2026-11-09).

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