131139-84-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131139-84-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,1,3 and 9 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 131139-84:
(8*1)+(7*3)+(6*1)+(5*1)+(4*3)+(3*9)+(2*8)+(1*4)=99
99 % 10 = 9
So 131139-84-9 is a valid CAS Registry Number.
131139-84-9Relevant articles and documents
PROCESS FOR MAKING 2-ARYL-3-ARYL-5-HALO PYRIDINES USEFUL AS COX-2 INHIBITORS
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Page 15-16, (2010/02/07)
The invention encompasses a process for making compounds of Formula (I) useful in the treatment of cyclooxygenase-2 mediated diseases.