445457-18-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 445457-18-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,5,4,5 and 7 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 445457-18:
(8*4)+(7*4)+(6*5)+(5*4)+(4*5)+(3*7)+(2*1)+(1*8)=161
161 % 10 = 1
So 445457-18-1 is a valid CAS Registry Number.