475981-53-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 475981-53-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,7,5,9,8 and 1 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 475981-53:
(8*4)+(7*7)+(6*5)+(5*9)+(4*8)+(3*1)+(2*5)+(1*3)=204
204 % 10 = 4
So 475981-53-4 is a valid CAS Registry Number.