918522-51-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 918522-51-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,1,8,5,2 and 2 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 918522-51:
(8*9)+(7*1)+(6*8)+(5*5)+(4*2)+(3*2)+(2*5)+(1*1)=177
177 % 10 = 7
So 918522-51-7 is a valid CAS Registry Number.