658710-31-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 658710-31-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,5,8,7,1 and 0 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 658710-31:
(8*6)+(7*5)+(6*8)+(5*7)+(4*1)+(3*0)+(2*3)+(1*1)=177
177 % 10 = 7
So 658710-31-7 is a valid CAS Registry Number.