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33421-20-4

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33421-20-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 33421-20-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,4,2 and 1 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 33421-20:
(7*3)+(6*3)+(5*4)+(4*2)+(3*1)+(2*2)+(1*0)=74
74 % 10 = 4
So 33421-20-4 is a valid CAS Registry Number.

33421-20-4SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name 2-(2-methylphenyl)pyridine N-oxide

1.2 Other means of identification

Product number -
Other names 2-o-Tolylpyridin-1-oxid

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:33421-20-4 SDS

33421-20-4Relevant articles and documents

A solution to the 2-pyridyl organometallic cross-coupling problem: Regioselective catalytic direct arylation of pyridine N-oxides

Campeau, Louis-Charles,Rousseaux, Sophie,Fagnou, Keith

, p. 18020 - 18021 (2005)

Direct arylation reactions of pyridine N-oxides occur in excellent yield with complete selectivity for the 2-position with a wide range of aryl bromides. This reactivity permits the use of inexpensive, commercially available, and bench-stable pyridine N-oxides as replacements for problematic 2-metallapyridines in palladium-catalyzed cross-coupling reactions. Copyright

Substitution of the nitro group with Grignard reagents: Facile arylation and alkenylation of pyridine N-oxides

Zhang, Fang,Zhang, Song,Duan, Xin-Fang

, p. 5618 - 5620 (2013/01/15)

The unprecedented substitution of a nitro group with aryl or alkenyl groups of Grignard reagents affords 2-aryl or alkenylpyridine N-oxides in modest to high yields with high chemoselectivity. This protocol allows a simple and clean synthesis of various 2

Use of N-oxide compounds in coupling reactions

-

Page/Page column 7-8, (2008/12/05)

Metal-catalyzed coupling process comprising reacting a compound of general formula 1 with a compound A-X, to obtain a compound of general formula 2, which may further be converted to a compound of general formula 3

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