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1219694-13-9

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1219694-13-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1219694-13-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,9,6,9 and 4 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1219694-13:
(9*1)+(8*2)+(7*1)+(6*9)+(5*6)+(4*9)+(3*4)+(2*1)+(1*3)=169
169 % 10 = 9
So 1219694-13-9 is a valid CAS Registry Number.

1219694-13-9Downstream Products

1219694-13-9Relevant articles and documents

Synthesis and the biological evaluation of arylnaphthalene lignans as anti-hepatitis B virus agents

Janmanchi, Damodar,Tseng, Ya Ping,Wang, Kuei-Chen,Huang, Ray Ling,Lin, Chih Hsiu,Yeh, Sheau Farn

, p. 1213 - 1226 (2010)

We have previously shown that helioxanthin can suppress human hepatitis B virus gene expression. A series of helioxanthin analogues were synthesized and evaluated for their anti-hepatitis B virus activity. Modifications at the lactone rings and methylenedioxy unit of helioxanthin can modulate the antiviral activity. Among them, compound 32 is the most effective anti-HBV agent. Compound 32 can suppress the secretion of viral surface antigen and e antigen in HepA2 cells with EC50 values of 0.06 and 0.14 μM, respectively. Compound 32 not only inhibited HBV DNA with wild-type and lamivudine-resistant strain but also suppressed HBV mRNA, core protein and viral promoters. In this study, a full account of the preparation, structure-activity relationships of helioxanthin analogues, and the possible mechanism of anti-HBV activity of this class of compounds are presented. This type of compounds possesses unique mode of action differing from existing therapeutic drugs. They are potentially new anti-HBV agents.

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