121868-58-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 121868-58-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,8,6 and 8 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 121868-58:
(8*1)+(7*2)+(6*1)+(5*8)+(4*6)+(3*8)+(2*5)+(1*8)=134
134 % 10 = 4
So 121868-58-4 is a valid CAS Registry Number.