131269-81-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131269-81-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,2,6 and 9 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 131269-81:
(8*1)+(7*3)+(6*1)+(5*2)+(4*6)+(3*9)+(2*8)+(1*1)=113
113 % 10 = 3
So 131269-81-3 is a valid CAS Registry Number.