903091-08-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 903091-08-7 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 1 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 903091-08:
(8*9)+(7*0)+(6*3)+(5*0)+(4*9)+(3*1)+(2*0)+(1*8)=137
137 % 10 = 7
So 903091-08-7 is a valid CAS Registry Number.