19693-49-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19693-49-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,6,9 and 3 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 19693-49:
(7*1)+(6*9)+(5*6)+(4*9)+(3*3)+(2*4)+(1*9)=153
153 % 10 = 3
So 19693-49-3 is a valid CAS Registry Number.