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78972-85-7

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78972-85-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 78972-85-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,9,7 and 2 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 78972-85:
(7*7)+(6*8)+(5*9)+(4*7)+(3*2)+(2*8)+(1*5)=197
197 % 10 = 7
So 78972-85-7 is a valid CAS Registry Number.

78972-85-7Relevant 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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