261379-31-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 261379-31-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,6,1,3,7 and 9 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 261379-31:
(8*2)+(7*6)+(6*1)+(5*3)+(4*7)+(3*9)+(2*3)+(1*1)=141
141 % 10 = 1
So 261379-31-1 is a valid CAS Registry Number.