8021-43-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 8021-43-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 8,0,2 and 1 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 8021-43:
(6*8)+(5*0)+(4*2)+(3*1)+(2*4)+(1*3)=70
70 % 10 = 0
So 8021-43-0 is a valid CAS Registry Number.