17903-47-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 17903-47-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,9,0 and 3 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 17903-47:
(7*1)+(6*7)+(5*9)+(4*0)+(3*3)+(2*4)+(1*7)=118
118 % 10 = 8
So 17903-47-8 is a valid CAS Registry Number.