903090-69-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 903090-69-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,3,0,9 and 0 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 903090-69:
(8*9)+(7*0)+(6*3)+(5*0)+(4*9)+(3*0)+(2*6)+(1*9)=147
147 % 10 = 7
So 903090-69-7 is a valid CAS Registry Number.