116805-53-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 116805-53-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,6,8,0 and 5 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 116805-53:
(8*1)+(7*1)+(6*6)+(5*8)+(4*0)+(3*5)+(2*5)+(1*3)=119
119 % 10 = 9
So 116805-53-9 is a valid CAS Registry Number.