19722-61-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19722-61-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,7,2 and 2 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 19722-61:
(7*1)+(6*9)+(5*7)+(4*2)+(3*2)+(2*6)+(1*1)=123
123 % 10 = 3
So 19722-61-3 is a valid CAS Registry Number.