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221038-07-9

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221038-07-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 221038-07-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,1,0,3 and 8 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 221038-07:
(8*2)+(7*2)+(6*1)+(5*0)+(4*3)+(3*8)+(2*0)+(1*7)=79
79 % 10 = 9
So 221038-07-9 is a valid CAS Registry Number.

221038-07-9Relevant articles and documents

Synthesis and properties of axially-chiral N-(2,6-disubstituted)phenyl triazolones

Brown, Richard J.,Annis, Gary,Casalnuovo, Albert,Chan, Dominic,Shapiro, Rafael,Marshall, William J.

, p. 4361 - 4375 (2004)

Certain ortho-substituted phenyl triazolone compounds are fungicidal. When two ortho-substituents are present, stable atropisomers can be isolated. Several methods for resolving racemic intermediates into the enantiomers are described, including separations of diasteromeric ester derivatives and diasteromeric salts. The intermediates were converted into products in which the absolute configuration can be correlated to biological activity.

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