19646-49-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19646-49-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,6,4 and 6 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 19646-49:
(7*1)+(6*9)+(5*6)+(4*4)+(3*6)+(2*4)+(1*9)=142
142 % 10 = 2
So 19646-49-2 is a valid CAS Registry Number.