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1233940-87-8

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1233940-87-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1233940-87-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,3,9,4 and 0 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1233940-87:
(9*1)+(8*2)+(7*3)+(6*3)+(5*9)+(4*4)+(3*0)+(2*8)+(1*7)=148
148 % 10 = 8
So 1233940-87-8 is a valid CAS Registry Number.

1233940-87-8Downstream Products

1233940-87-8Relevant articles and documents

Synthesis and structure-activity relationship study of 8-hydroxyquinoline- derived Mannich bases as anticancer agents

Shaw, Arthur Y.,Chang, Chun-Yi,Hsu, Mei-Yuan,Lu, Pei-Jung,Yang, Chia-Ning,Chen, Hui-Ling,Lo, Cheng-Wei,Shiau, Chung-Wai,Chern, Ming-Kai

experimental part, p. 2860 - 2867 (2010/08/20)

To continue our early study on the structural modifications of clioquinol, more 8-hydroxyquinoline-derived Mannich bases were synthesized and examined for growth-inhibitory effect. Taken Mannich base 1 as our lead compound, upon replacement of either sulfonyl group with methylene group or piperazine ring with ethylenediamine group resulted in an appreciable increase in potency. On the other hand, as 8-hydroxyquinoline was replaced with phenol, 3-hydroxypyridine and 1-naphthol, a dramatic decrease in activity was observed, indicating that 8-hydroxyquinoline is a crucial scaffold for activity. Further 3D-QSAR analysis on HeLa cells revealed that both steric and electronic effects contributed equally to growth inhibition. Taken together, the structure-activity relationships obtained from both in vitro data and CoMFA model warrant a valuable reference for further study.

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