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914311-44-7

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914311-44-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 914311-44-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,1,4,3,1 and 1 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 914311-44:
(8*9)+(7*1)+(6*4)+(5*3)+(4*1)+(3*1)+(2*4)+(1*4)=137
137 % 10 = 7
So 914311-44-7 is a valid CAS Registry Number.

914311-44-7Relevant articles and documents

New practical synthesis of indazoles via condensation of o-fluorobenzaldehydes and their O-methyloximes with hydrazine

Lukin, Kirill,Hsu, Margaret C.,Fernando, Dilinie,Leanna, M. Robert

, p. 8166 - 8172 (2007/10/03)

The reaction of o-fluorobenzaldehydes and their O-methyloximes with hydrazine has been developed as a new practical synthesis of indazoles. Utilization of the methyloxime derivatives of benzaldehydes (in the form of the major E-isomers) in this condensation effectively eliminated a competitive Wolf-Kishner reduction to fluorotoluenes, which was observed in the direct preparations of indazoles from aldehydes. Reaction of Z-isomers of methyloximes with hydrazine resulted in the formation of 3-aminoindazoles via a benzonitrile intermediate.

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