131696-26-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131696-26-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,6,9 and 6 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 131696-26:
(8*1)+(7*3)+(6*1)+(5*6)+(4*9)+(3*6)+(2*2)+(1*6)=129
129 % 10 = 9
So 131696-26-9 is a valid CAS Registry Number.