903091-83-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 903091-83-8 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 1 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 903091-83:
(8*9)+(7*0)+(6*3)+(5*0)+(4*9)+(3*1)+(2*8)+(1*3)=148
148 % 10 = 8
So 903091-83-8 is a valid CAS Registry Number.