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653580-54-2

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653580-54-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 653580-54-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,5,3,5,8 and 0 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 653580-54:
(8*6)+(7*5)+(6*3)+(5*5)+(4*8)+(3*0)+(2*5)+(1*4)=172
172 % 10 = 2
So 653580-54-2 is a valid CAS Registry Number.

653580-54-2Relevant articles and documents

8,9-Methylenedioxybenzo[i]phenanthridines: Topoisomerase I-targeting activity and cytotoxicity

Li, Dajie,Zhao, Baoping,Sim, Sai-Peng,Li, Tsai-Kun,Liu, Angela,Liu, Leroy F.,LaVoie, Edmond J.

, p. 3795 - 3805 (2007/10/03)

Substituted benzo[i]phenanthridines that have incorporated within their structure an 8,9-methylenedioxy group can exhibit topoisomerase I-targeting activity. Structure-activity studies were performed to examine the influence of saturation at the 11,12-positions of several substituted 8,9-methylenedioxybenzo[i]phenanthridines. The activities of these dihydro analogues were compared to those of their unsaturated analogues. In addition, the influence of varying substituents at the 2- and 3-positions within the A-ring of these 8,9-methylenedioxybenzo[i]phenanthridines on their relative potency as topoisomerase I-targeting agents and cell proliferation as determined using the MTT assay was investigated. 2,3-Dimethoxy-8,9-methylenedioxybenzo[i]phenanthridine and its 11,12-dihydro derivative were among the more potent analogues evaluated with regard to topoisomerase I-targeting activity and cytotoxicity.

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