116665-55-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 116665-55-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,6,6,6 and 5 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 116665-55:
(8*1)+(7*1)+(6*6)+(5*6)+(4*6)+(3*5)+(2*5)+(1*5)=135
135 % 10 = 5
So 116665-55-5 is a valid CAS Registry Number.