71998-47-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71998-47-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,9,9 and 8 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 71998-47:
(7*7)+(6*1)+(5*9)+(4*9)+(3*8)+(2*4)+(1*7)=175
175 % 10 = 5
So 71998-47-5 is a valid CAS Registry Number.