821010-22-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 821010-22-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,2,1,0,1 and 0 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 821010-22:
(8*8)+(7*2)+(6*1)+(5*0)+(4*1)+(3*0)+(2*2)+(1*2)=94
94 % 10 = 4
So 821010-22-4 is a valid CAS Registry Number.