169136-41-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 169136-41-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,9,1,3 and 6 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 169136-41:
(8*1)+(7*6)+(6*9)+(5*1)+(4*3)+(3*6)+(2*4)+(1*1)=148
148 % 10 = 8
So 169136-41-8 is a valid CAS Registry Number.
169136-41-8Relevant articles and documents
Synthesis and properties of pyrimido[4,5-a]- and pyrido[4,3-a]carbazole derivatives
Kukushkin,Ivanov,Alekseeva,Kobrakov,Granik
, p. 2856 - 2861 (2004)
Methods for the synthesis of substituted pyrimido [4,5-a]- and pyrido[4,3-a]carbazoles were proposed. Condensation of 2- (dimethylaminomethylene)-6-methyl-2,3,4,9-tetrahydro-1H-carbazol-1-one with guanidine and thiourea afforded 2-amino-8-methyl-6,11-dihy
