121307-28-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 121307-28-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,3,0 and 7 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 121307-28:
(8*1)+(7*2)+(6*1)+(5*3)+(4*0)+(3*7)+(2*2)+(1*8)=76
76 % 10 = 6
So 121307-28-6 is a valid CAS Registry Number.