197963-30-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 197963-30-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,7,9,6 and 3 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 197963-30:
(8*1)+(7*9)+(6*7)+(5*9)+(4*6)+(3*3)+(2*3)+(1*0)=197
197 % 10 = 7
So 197963-30-7 is a valid CAS Registry Number.