121579-84-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 121579-84-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,5,7 and 9 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 121579-84:
(8*1)+(7*2)+(6*1)+(5*5)+(4*7)+(3*9)+(2*8)+(1*4)=128
128 % 10 = 8
So 121579-84-8 is a valid CAS Registry Number.