131696-28-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131696-28-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,6,9 and 6 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 131696-28:
(8*1)+(7*3)+(6*1)+(5*6)+(4*9)+(3*6)+(2*2)+(1*8)=131
131 % 10 = 1
So 131696-28-1 is a valid CAS Registry Number.