801224-21-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 801224-21-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,0,1,2,2 and 4 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 801224-21:
(8*8)+(7*0)+(6*1)+(5*2)+(4*2)+(3*4)+(2*2)+(1*1)=105
105 % 10 = 5
So 801224-21-5 is a valid CAS Registry Number.