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1251941-13-5

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1251941-13-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1251941-13-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,1,9,4 and 1 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1251941-13:
(9*1)+(8*2)+(7*5)+(6*1)+(5*9)+(4*4)+(3*1)+(2*1)+(1*3)=135
135 % 10 = 5
So 1251941-13-5 is a valid CAS Registry Number.

1251941-13-5Relevant articles and documents

PYRAZINE DERIVATIVES FOR OPTICAL IMAGING AND THERAPY

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Page/Page column 47, (2010/11/04)

The invention provides compounds, including compositions, preparations and formulations, and methods of using and making such compounds. Compounds of the present invention include pyrazine derivatives having a pyrazine core and a plurality of substituents. In some embodiments, pyrazine derivatives of the invention are pyrazine core compounds having one or more electron donating groups and one or more electron withdrawing groups optionally functionalized to provide useful optical, biological, pharmacokinetic and/or physical properties.

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