90109-76-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 90109-76-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,1,0 and 9 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 90109-76:
(7*9)+(6*0)+(5*1)+(4*0)+(3*9)+(2*7)+(1*6)=115
115 % 10 = 5
So 90109-76-5 is a valid CAS Registry Number.