903446-43-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 903446-43-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,3,4,4 and 6 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 903446-43:
(8*9)+(7*0)+(6*3)+(5*4)+(4*4)+(3*6)+(2*4)+(1*3)=155
155 % 10 = 5
So 903446-43-5 is a valid CAS Registry Number.