778520-35-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 778520-35-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,7,8,5,2 and 0 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 778520-35:
(8*7)+(7*7)+(6*8)+(5*5)+(4*2)+(3*0)+(2*3)+(1*5)=197
197 % 10 = 7
So 778520-35-7 is a valid CAS Registry Number.