903138-07-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 903138-07-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,3,1,3 and 8 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 903138-07:
(8*9)+(7*0)+(6*3)+(5*1)+(4*3)+(3*8)+(2*0)+(1*7)=138
138 % 10 = 8
So 903138-07-8 is a valid CAS Registry Number.