69502-90-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 69502-90-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,5,0 and 2 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 69502-90:
(7*6)+(6*9)+(5*5)+(4*0)+(3*2)+(2*9)+(1*0)=145
145 % 10 = 5
So 69502-90-5 is a valid CAS Registry Number.