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1620139-66-3

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1620139-66-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1620139-66-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,2,0,1,3 and 9 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1620139-66:
(9*1)+(8*6)+(7*2)+(6*0)+(5*1)+(4*3)+(3*9)+(2*6)+(1*6)=133
133 % 10 = 3
So 1620139-66-3 is a valid CAS Registry Number.

1620139-66-3Downstream Products

1620139-66-3Relevant articles and documents

Synthesis of podophyllotoxin derivatives as potential antitumor agents

Sun, Yanjun,Chen, Hong,Hua, Huiming,Liu, Yongfeng,Zhang, Shi

, p. 408 - 413 (2014/08/18)

A series of novel podophyllotoxin derivatives was synthesized by coupling 4β-amino-4′-demethyl-4-desoxypodophyllotoxin (3a) or 4β-amino-4-desoxypodophyllotoxin (3b) with N-substituted 5-formylindole (2a-h). Their structures were identied by spectroscopic techniques. These novel derivatives were evaluated for cytotoxicity in vitro against HepG2 and HeLa cell lines. Compared with etoposide, most of the compounds showed more potent cytotoxicities against two tumor cell lines. Judging from the IC50 values, compound 5n is a promising agent, which is about 15 and 5 times more toxic than etoposide against HepG2 and HeLa cell lines, respectively.

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