1645-45-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1645-45-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,6,4 and 5 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1645-45:
(6*1)+(5*6)+(4*4)+(3*5)+(2*4)+(1*5)=80
80 % 10 = 0
So 1645-45-0 is a valid CAS Registry Number.