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52709-59-8

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52709-59-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 52709-59-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,2,7,0 and 9 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 52709-59:
(7*5)+(6*2)+(5*7)+(4*0)+(3*9)+(2*5)+(1*9)=128
128 % 10 = 8
So 52709-59-8 is a valid CAS Registry Number.

52709-59-8Downstream Products

52709-59-8Relevant articles and documents

3-Chlor-5-dimethylamino-2-formyl-4-aza-2,4-pentadiennitril, Synthese und Umsetzungen mit Nucleophilen

Klemm, Kurt,Pruesse, Wolfgang,Baron, Lothar,Daltrozzo, Ewald

, p. 2001 - 2018 (2007/10/02)

3-Chloro-5-dimethylamino-2-formyl-4-aza-2,4-pentadienenitrile (7) is prepared by partial hydrolysis of the iminium perchlorate 1.In 7 the electrophilic centres (1, 3, 5) regioselectively react with secondary alkylamines, arylamines, and hydrazine derivatives to yield 3-amino-substituted formylazapentadienenitriles and (hydrazonomethyl)azapentadienenitriles.Intramolecular cyclisation leads to triazole betaines, pyrazoles, and 1,4-dihydropyrimidines.

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