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4-Bromo-1-ethyl-1H-pyrazole is a pyrazole derivative with the molecular formula C6H8BrN2, featuring a bromine atom and an ethyl group attached to the nitrogen atoms of the pyrazole ring. This chemical compound is recognized for its reactivity and versatility, making it a valuable building block in the synthesis of various molecular structures and a promising candidate for applications in pharmaceuticals and agrochemicals.

71229-85-1

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71229-85-1 Usage

Uses

Used in Chemical Research and Synthesis:
4-Bromo-1-ethyl-1H-pyrazole is used as a reagent and intermediate in chemical research and synthesis for its ability to form various derivatives and molecular structures. Its unique properties contribute to the development of new chemical compounds for a wide range of industrial and scientific purposes.
Used in Pharmaceutical Industry:
In the pharmaceutical industry, 4-Bromo-1-ethyl-1H-pyrazole is used as a key component in the development of new drugs. Its reactivity and structural diversity allow for the creation of potential therapeutic agents that can target specific biological pathways or receptors.
Used in Agrochemical Industry:
4-Bromo-1-ethyl-1H-pyrazole is also utilized in the agrochemical industry as a starting material for the synthesis of pesticides and other crop protection agents. Its versatility in forming different chemical structures enables the development of effective and targeted agrochemicals to improve crop yield and protect against pests and diseases.

Check Digit Verification of cas no

The CAS Registry Mumber 71229-85-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,2,2 and 9 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 71229-85:
(7*7)+(6*1)+(5*2)+(4*2)+(3*9)+(2*8)+(1*5)=121
121 % 10 = 1
So 71229-85-1 is a valid CAS Registry Number.
InChI:InChI=1/C5H7BrN2/c1-2-8-4-5(6)3-7-8/h3-4H,2H2,1H3

71229-85-1SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name 4-Bromo-1-ethyl-1H-pyrazole

1.2 Other means of identification

Product number -
Other names 4-Bromo-1-ethylpyrazole

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:71229-85-1 SDS

71229-85-1Relevant academic research and scientific papers

Pyrazole N-alkylation method

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Paragraph 0021; 0022; 0030-0032, (2018/12/14)

The invention provides a pyrazole N-alkylation method. Pyrazole or pyrazole derivatives and alkyl halogenated hydrocarbons react in a solvent under the existence of quaternary ammonium salt catalysts;N-alkyl substituted pyrazole is obtained. The method provided by the invention has the advantages that the operation is simple; the cost is low; the anhydrous oxygen-free environment is not needed; heating is not needed; the yield is high; the amplified industrialized production can be easily realized.

AUTOTAXIN INHIBITORS AND USES THEREOF

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Paragraph 00324; 00327, (2016/12/22)

Described herein are methods and compositions for the treatment of conditions, diseases, or disorders associated with autotaxin activity. The methods and compositions disclosed herein include the use of at least one autotaxin inhibitor compound.

PROTEIN KINASE INHIBITORS

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Paragraph 0150, (2015/02/18)

A compound of formula (I), wherein R3, R4, G, B, M, and Z are as defined in the claims, and pharmaceutically acceptable salts thereof are disclosed. The compounds of formula (I) possess utility as FGFR inhibitors and are useful in the treatment of a condition, where FGFR kinase inhibition is desired, such as cancer.

NRF2 REGULATORS

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Page/Page column 403, (2015/07/07)

The present invention relates to bis aryl analogs, pharmaceutical compositions containing them and their use as Nrf2 regulators.

AUTOTAXIN INHIBITOR COMPOUNDS

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Paragraph 00341, (2015/06/08)

Described herein are compounds that are autotaxin inhibitors, methods of making such compounds, pharmaceutical compositions and medicaments comprising such compounds, and methods of using such compounds in the treatment of conditions, diseases, or disorde

Methods for the treatment of metabolic disorders by a selective small molecule autotaxin inhibitor

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Paragraph 0258, (2015/06/16)

Described herein are methods and compositions for treatment or prevention of metabolic disorder(s) in an individual. The methods and compositions disclosed herein include the use of at least one autotaxin inhibitor compound.

Fragment-based identification of amides derived from trans-2-(pyridin-3-yl) cyclopropanecarboxylic acid as potent inhibitors of human nicotinamide phosphoribosyltransferase (NAMPT)

Giannetti, Anthony M.,Zheng, Xiaozhang,Skelton, Nicholas J.,Wang, Weiru,Bravo, Brandon J.,Bair, Kenneth W.,Baumeister, Timm,Cheng, Eric,Crocker, Lisa,Feng, Yezhen,Gunzner-Toste, Janet,Ho, Yen-Ching,Hua, Rongbao,Liederer, Bianca M.,Liu, Yongbo,Ma, Xiaolei,O'Brien, Thomas,Oeh, Jason,Sampath, Deepak,Shen, Youming,Wang, Chengcheng,Wang, Leslie,Wu, Hongxing,Xiao, Yang,Yuen, Po-Wai,Zak, Mark,Zhao, Guiling,Zhao, Qiang,Dragovich, Peter S.

, p. 770 - 792 (2014/03/21)

Potent, trans-2-(pyridin-3-yl)cyclopropanecarboxamide-containing inhibitors of the human nicotinamide phosphoribosyltransferase (NAMPT) enzyme were identified using fragment-based screening and structure-based design techniques. Multiple crystal structures were obtained of initial fragment leads, and this structural information was utilized to improve the biochemical and cell-based potency of the associated molecules. Many of the optimized compounds exhibited nanomolar antiproliferative activities against human tumor lines in in vitro cell culture experiments. In a key example, a fragment lead (13, KD = 51 μM) was elaborated into a potent NAMPT inhibitor (39, NAMPT IC 50 = 0.0051 μM, A2780 cell culture IC50 = 0.000 49 μM) which demonstrated encouraging in vivo efficacy in an HT-1080 mouse xenograft tumor model.

PROTEIN KINASE INHIBITORS

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Page/Page column 36, (2013/04/25)

A compound of formula (I), wherein R3, R4, G, B, M, and Z are as defined in the claims, and pharmaceutically acceptable salts thereof are disclosed. The compounds of formula (I) possess utility as FGFR inhibitors and are useful in the treatment of a condition, where FGFR kinase inhibition is desired, such as cancer.

Crucial role of paramagnetic ligands for magnetostructural anomalies in "breathing crystals"

Tretyakov, Evgeny V.,Tolstikov, Svyatoslav E.,Suvorova, Anastasiya O.,Polushkin, Aleksey V.,Romanenko, Galina V.,Bogomyakov, Artem S.,Veber, Sergey L.,Fedin, Matvey V.,Stass, Dmitry V.,Reijerse, Edward,Lubitz, Wolfgang,Zueva, Ekaterina M.,Ovcharenko, Victor I.

, p. 9385 - 9394 (2012/11/13)

Breathing crystals based on polymer-chain complexes of Cu(hfac)2 with nitroxides exhibit thermally and light-induced magnetostructural anomalies in many aspects similar to a spin crossover. In the present work, we report the synthesis and investigation of a new family of Cu(hfac)2 complexes with tert-butylpyrazolylnitroxides and their nonradical structural analogues. The complexes with paramagnetic ligands clearly exhibit structural rearrangements in the copper(II) coordination units and accompanying magnetic phenomena characteristic for breathing crystals. Contrary to that, their structural analogues with diamagnetic ligands do not undergo rearrangements in the copper(II) coordination environments. This confirms experimentally the crucial role of paramagnetic ligands and exchange interactions between them and copper(II) ions for the origin of magnetostructural anomalies in this family of molecular magnets.

Synthesis of pinacol esters of 1-alkyl-1H-pyrazol-5-yl- and 1-alkyl-1H-pyrazol-4-ylboronic acids

Ivachtchenko, Alexandre V.,Kravchenko, Dmitry V.,Zheludeva, Valentina I.,Pershin, Dmitry G.

, p. 931 - 939 (2007/10/03)

Starting from 1H-pyrazol, a wide number of 1-alkyl-1H-pyrazol-4-yl and 1-alkyl-1H-pyrazol-5-ylboronic acids and their pinacol esters were synthesized and characterized. The key step in the described methodology is the regioselective lithiation of the pyrazole ring. The synthesized pinacolates are stable under prolonged storage and can be used as convenient reagents in organic synthesis.

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