54431-37-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 54431-37-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,4,3 and 1 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 54431-37:
(7*5)+(6*4)+(5*4)+(4*3)+(3*1)+(2*3)+(1*7)=107
107 % 10 = 7
So 54431-37-7 is a valid CAS Registry Number.