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556039-75-9

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556039-75-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 556039-75-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,5,6,0,3 and 9 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 556039-75:
(8*5)+(7*5)+(6*6)+(5*0)+(4*3)+(3*9)+(2*7)+(1*5)=169
169 % 10 = 9
So 556039-75-9 is a valid CAS Registry Number.

556039-75-9Downstream Products

556039-75-9Relevant articles and documents

New bis(pyridyl)methane derivatives from 4-hydroxy-2-pyridones: Synthesis and antitumoral activity

Cocco, Maria Teresa,Congiu, Cenzo,Onnis, Valentina

, p. 37 - 47 (2007/10/03)

Bis(pyridyl)methane derivatives 5-40 were obtained from the reaction of 4-hydroxy-2-pyridones 3 and 4 with aldehydes. Compounds 5-40 were evaluated for cytotoxic activity against a panel of 60 human cancer cell lines by the National Cancer Institute and some of them demonstrated inhibitory effects on the growth of a wide range of cancer cell lines generally at 10-5 M level and in some case at 10-7 M concentrations.

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