23219-05-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 23219-05-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,2,1 and 9 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 23219-05:
(7*2)+(6*3)+(5*2)+(4*1)+(3*9)+(2*0)+(1*5)=78
78 % 10 = 8
So 23219-05-8 is a valid CAS Registry Number.