131668-15-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131668-15-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,6,6 and 8 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 131668-15:
(8*1)+(7*3)+(6*1)+(5*6)+(4*6)+(3*8)+(2*1)+(1*5)=120
120 % 10 = 0
So 131668-15-0 is a valid CAS Registry Number.