121965-80-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 121965-80-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,9,6 and 5 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 121965-80:
(8*1)+(7*2)+(6*1)+(5*9)+(4*6)+(3*5)+(2*8)+(1*0)=128
128 % 10 = 8
So 121965-80-8 is a valid CAS Registry Number.