121399-76-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 121399-76-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,3,9 and 9 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 121399-76:
(8*1)+(7*2)+(6*1)+(5*3)+(4*9)+(3*9)+(2*7)+(1*6)=126
126 % 10 = 6
So 121399-76-6 is a valid CAS Registry Number.