1269439-89-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1269439-89-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,6,9,4,3 and 9 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1269439-89:
(9*1)+(8*2)+(7*6)+(6*9)+(5*4)+(4*3)+(3*9)+(2*8)+(1*9)=205
205 % 10 = 5
So 1269439-89-5 is a valid CAS Registry Number.
1269439-89-5Relevant articles and documents
Synthesis and biological activity of novel inhibitors of topoisomerase I: 2-Aryl-substituted 2-bis-1H-benzimidazoles
Singh, Manish,Tandon, Vibha
, p. 659 - 669 (2011/03/19)
Inhibitors of topoisomerase I constitute a novel family of antitumor agents. The class of benzimidazole derivatives contains compounds possessing affinity to DNA. For example, fluorescent stains Hoechst 33342 and Hoechst 33258 interact with DNA as ligand
