445393-31-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 445393-31-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,5,3,9 and 3 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 445393-31:
(8*4)+(7*4)+(6*5)+(5*3)+(4*9)+(3*3)+(2*3)+(1*1)=157
157 % 10 = 7
So 445393-31-7 is a valid CAS Registry Number.