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21142-81-4

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21142-81-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21142-81-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,1,4 and 2 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 21142-81:
(7*2)+(6*1)+(5*1)+(4*4)+(3*2)+(2*8)+(1*1)=64
64 % 10 = 4
So 21142-81-4 is a valid CAS Registry Number.

21142-81-4Relevant articles and documents

NOVEL INHIBITORS OF POLY(ADP-RIBOSE)POLYMERASE (PARP)

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Page/Page column 45, (2009/04/24)

A compound having the structure set forth in Formula (I): wherein the variables Y, R1, R2, R3, R4 and R5 are as defined herein. Compounds described herein are inhibitors of poly(ADP-ribose)polymerase activity. Also described herein are pharmaceutical compositions that include at least one compound described herein and the use of such compounds and pharmaceutical compositions to treat diseases, disorders and conditions that are ameliorated by the inhibition of PARP activity

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