75981-55-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 75981-55-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,9,8 and 1 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 75981-55:
(7*7)+(6*5)+(5*9)+(4*8)+(3*1)+(2*5)+(1*5)=174
174 % 10 = 4
So 75981-55-4 is a valid CAS Registry Number.