903199-87-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 903199-87-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,3,1,9 and 9 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 903199-87:
(8*9)+(7*0)+(6*3)+(5*1)+(4*9)+(3*9)+(2*8)+(1*7)=181
181 % 10 = 1
So 903199-87-1 is a valid CAS Registry Number.