721945-50-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 721945-50-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,2,1,9,4 and 5 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 721945-50:
(8*7)+(7*2)+(6*1)+(5*9)+(4*4)+(3*5)+(2*5)+(1*0)=162
162 % 10 = 2
So 721945-50-2 is a valid CAS Registry Number.