16177-52-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 16177-52-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,1,7 and 7 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 16177-52:
(7*1)+(6*6)+(5*1)+(4*7)+(3*7)+(2*5)+(1*2)=109
109 % 10 = 9
So 16177-52-9 is a valid CAS Registry Number.