73901-45-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 73901-45-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,9,0 and 1 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 73901-45:
(7*7)+(6*3)+(5*9)+(4*0)+(3*1)+(2*4)+(1*5)=128
128 % 10 = 8
So 73901-45-8 is a valid CAS Registry Number.