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845438-83-7

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845438-83-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 845438-83-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,4,5,4,3 and 8 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 845438-83:
(8*8)+(7*4)+(6*5)+(5*4)+(4*3)+(3*8)+(2*8)+(1*3)=197
197 % 10 = 7
So 845438-83-7 is a valid CAS Registry Number.

845438-83-7Relevant articles and documents

Design, synthesis, and biological evaluation of novel 6h-benzo[c]chromen-6-one derivatives as potential phosphodiesterase ii inhibitors

Tang, Long,Jiang, Jianchun,Song, Guoqiang,Wang, Yajing,Zhuang, Ziheng,Tan, Ying,Xia, Yan,Huang, Xianfeng,Feng, Xiaoqing

, (2021)

Urolithins (hydroxylated 6H-benzo[c]chromen-6-ones) are the main bioavailable metabolites of ellagic acid (EA), which was shown to be a cognitive enhancer in the treatment of neurodegenerative diseases. As part of this research, a series of alkoxylated 6H-benzo[c]chromen-6-one derivatives were designed and synthesized. Furthermore, their biological activities were evaluated as potential PDE2 inhibitors, and the alkoxylated 6H-benzo[c]chromen-6-one derivative 1f was found to have the optimal inhibitory potential (IC50: 3.67 ± 0.47 μM). It also exhibited comparable activity in comparison to that of BAY 60-7550 in vitro cell level studies.

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