117866-98-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 117866-98-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,8,6 and 6 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 117866-98:
(8*1)+(7*1)+(6*7)+(5*8)+(4*6)+(3*6)+(2*9)+(1*8)=165
165 % 10 = 5
So 117866-98-5 is a valid CAS Registry Number.