115921-80-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 115921-80-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,5,9,2 and 1 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 115921-80:
(8*1)+(7*1)+(6*5)+(5*9)+(4*2)+(3*1)+(2*8)+(1*0)=117
117 % 10 = 7
So 115921-80-7 is a valid CAS Registry Number.