131976-79-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131976-79-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,9,7 and 6 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 131976-79:
(8*1)+(7*3)+(6*1)+(5*9)+(4*7)+(3*6)+(2*7)+(1*9)=149
149 % 10 = 9
So 131976-79-9 is a valid CAS Registry Number.