648930-80-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 648930-80-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,4,8,9,3 and 0 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 648930-80:
(8*6)+(7*4)+(6*8)+(5*9)+(4*3)+(3*0)+(2*8)+(1*0)=197
197 % 10 = 7
So 648930-80-7 is a valid CAS Registry Number.