Cas 1103530-05-7,C28H23N3O5

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Check Digit Verification of cas no

The CAS Registry Mumber 1103530-05-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,0,3,5,3 and 0 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1103530-05:
(9*1)+(8*1)+(7*0)+(6*3)+(5*5)+(4*3)+(3*0)+(2*0)+(1*5)=77
77 % 10 = 7
So 1103530-05-7 is a valid CAS Registry Number.

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1103530-05-7Relevant academic research and scientific papers

Semi-synthesis and biological activity of γ-lactones analogs of camptothecin

Li, Mingzong,Tang, Weidong,Zeng, Fuxing,Lou, Liguang,You, Tianpa

, p. 6441 - 6443 (2008)

A series of E-ring γ-lactone camptothecin derivatives were synthesized by semi-synthesis via a three-step domino reaction. Their biological activity was evaluated on two types of human tumor cell lines A549 and HT-29 with sulforhodamine-B (SRB) method. The antitumor activity of these compounds was lower than SN-38, only compound 12c was found to be close to the activity of Topotecan. The structure-activity relationship (SAR) of these analogs was studied and discussed. Crown Copyright

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