117659-76-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 117659-76-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,6,5 and 9 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 117659-76:
(8*1)+(7*1)+(6*7)+(5*6)+(4*5)+(3*9)+(2*7)+(1*6)=154
154 % 10 = 4
So 117659-76-4 is a valid CAS Registry Number.