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87780-12-9

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87780-12-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 87780-12-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,7,8 and 0 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 87780-12:
(7*8)+(6*7)+(5*7)+(4*8)+(3*0)+(2*1)+(1*2)=169
169 % 10 = 9
So 87780-12-9 is a valid CAS Registry Number.

87780-12-9Relevant articles and documents

SYNTHESE D'ACYL-ALKYLIDENE-3 DIHYDROPYRIDAZINES PAR UNE REACTION D'EXTRUSION DE SOUFRE

Joliveau, Claudine,Wermuth, Camille-Georges

, p. 2295 - 2302 (2007/10/02)

Des acyl-alkylidene-3 dihydropyridazines sont obtenues par une reaction mettant en jeu l'extrusion du soufre des acyl-alkylthio-3 pyridazines N-alkylees correspondantes.Cette reaction d'extrusion n'a pas lieu sur des cycles pyridaziniques non alkyles sur

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