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220873-36-9

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220873-36-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 220873-36-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,8,7 and 3 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 220873-36:
(8*2)+(7*2)+(6*0)+(5*8)+(4*7)+(3*3)+(2*3)+(1*6)=119
119 % 10 = 9
So 220873-36-9 is a valid CAS Registry Number.

220873-36-9Relevant articles and documents

Indolocarbazole poisons of human topoisomerase I: Regioisomeric analogues of ED-110

Zembower, David E.,Zhang, Heping,Lineswala, Jayana P.,Kuffel, Mary J.,Aytes, Shelley A.,Ames, Matthew M.

, p. 145 - 150 (1999)

All four 'symmetrical' regioisomers of ED-110, an indolocarbazole derivative having potent activity against human topoisomerase I (Topo I) were synthesized. The isomer containing hydroxyl groups in the 3- and 9-positions was approximately ten-fold more active against Topo I, and 5- to 35-fold more active against human solid tumor cell lines in vitro, relative to ED-110.

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