1145777-32-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1145777-32-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,4,5,7,7 and 7 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1145777-32:
(9*1)+(8*1)+(7*4)+(6*5)+(5*7)+(4*7)+(3*7)+(2*3)+(1*2)=167
167 % 10 = 7
So 1145777-32-7 is a valid CAS Registry Number.
1145777-32-7Relevant articles and documents
Preparation of azulene substituted pyrazine and quinoxaline derivatives
Furuta, Nozomi,Mizutani, Takuo,Ohta, Akira,Fujimori, Kunihide
, p. 1079 - 1088 (2009)
2,3-Di(2-azulenyl)pyrazines and -quinoxalines were obtained by the reaction of di(2-azulenyl)ethanedione with diamines. Cyclodehydrogenation reaction of the pyrazine and quinoxaline derivatives with manganese dioxide afforded the corresponding azulene-fus
