116172-15-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 116172-15-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,6,1,7 and 2 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 116172-15:
(8*1)+(7*1)+(6*6)+(5*1)+(4*7)+(3*2)+(2*1)+(1*5)=97
97 % 10 = 7
So 116172-15-7 is a valid CAS Registry Number.