821791-31-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 821791-31-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,2,1,7,9 and 1 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 821791-31:
(8*8)+(7*2)+(6*1)+(5*7)+(4*9)+(3*1)+(2*3)+(1*1)=165
165 % 10 = 5
So 821791-31-5 is a valid CAS Registry Number.
821791-31-5Relevant articles and documents
5-SUBSTITUTED-4-`(SUBSTITUTED PHENYL)!AMINO!-2-PYRIDONE DEVIATIVES FOR USE AS MEK INHIBITORS
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Page 69, (2010/02/10)
The present invention relates to 5-substituted-4-(substituted) phenylamino-2-pyridone derivatives of formula (I), pharmaceutical compositions and methods of use thereof as MEK inhibitors. Formula (I) wherein W is formula (II), formula (III), formula (IV),