197910-59-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 197910-59-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,7,9,1 and 0 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 197910-59:
(8*1)+(7*9)+(6*7)+(5*9)+(4*1)+(3*0)+(2*5)+(1*9)=181
181 % 10 = 1
So 197910-59-1 is a valid CAS Registry Number.