903522-39-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 903522-39-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,3,5,2 and 2 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 903522-39:
(8*9)+(7*0)+(6*3)+(5*5)+(4*2)+(3*2)+(2*3)+(1*9)=144
144 % 10 = 4
So 903522-39-4 is a valid CAS Registry Number.