55743-31-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 55743-31-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,7,4 and 3 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 55743-31:
(7*5)+(6*5)+(5*7)+(4*4)+(3*3)+(2*3)+(1*1)=132
132 % 10 = 2
So 55743-31-2 is a valid CAS Registry Number.