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248255-70-1 Usage

General Description

5-Chloro-3-fluoro-2-hydrazinylpyridine is a chemical compound with the molecular formula C5H4ClFN4. It is a hydrazine derivative that contains a pyridine ring with a chloro and fluoro substituent as well as a hydrazinyl functional group. 5-chloro-3-fluoro-2-hydrazinylpyridine is often used in the synthesis of various pharmaceuticals and agrochemicals. It has shown potential as a building block for the development of new drugs due to its ability to target specific biological pathways. Additionally, it has been studied for its potential antimicrobial and antitumor activities. Overall, 5-chloro-3-fluoro-2-hydrazinylpyridine is a versatile chemical with potential applications in the fields of medicine and agriculture.

Check Digit Verification of cas no

The CAS Registry Mumber 248255-70-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,4,8,2,5 and 5 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 248255-70:
151 % 10 = 1
So 248255-70-1 is a valid CAS Registry Number.



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


1.1 GHS Product identifier

Product name (5-chloro-3-fluoropyridin-2-yl)hydrazine

1.2 Other means of identification

Product number -
Other names 5-Chloro-3-fluoro-2-hydrazinylpyridine

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:248255-70-1 SDS

248255-70-1Relevant articles and documents



Paragraph 0272-0273, (2020/08/05)

The invention provides compounds of formula (I): or a pharmaceutically-acceptable salt thereof, wherein the variables are defined in the specification, that are inhibitors of JAK kinases, particularly JAK3. The invention also provides pharmaceutical compo

Removal of fluorine from and introduction of fluorine into polyhalopyridines: An exercise in nucleophilic hetarenic substitution

Bobbio, Carla,Rausis, Thierry,Schlosser, Manfred

, p. 1903 - 1910 (2007/10/03)

Starting from six industrially available fluorinated pyridines, an expedient access to all three tetrafluoropyridines (2-4), all six trifluoropyridines (5-10), and the five non-commercial difluoropyridines (11-14 and 16) was developed. The methods employed for the selective removal of fluorine from polyfluoropyridines were the reduction by metals or complex hydrides and the site-selective replacement by hydrazine followed by dehydrogenation-dediazotation or dehydrochlorination-dediazotation. To introduce an extra fluorine atom, a suitable precursor was metalated and chlorinated before being subjected to a chlorine/ fluorine displacement process.

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