103421-22-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 103421-22-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,3,4,2 and 1 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 103421-22:
(8*1)+(7*0)+(6*3)+(5*4)+(4*2)+(3*1)+(2*2)+(1*2)=63
63 % 10 = 3
So 103421-22-3 is a valid CAS Registry Number.