544433-54-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 544433-54-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,4,4,4,3 and 3 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 544433-54:
(8*5)+(7*4)+(6*4)+(5*4)+(4*3)+(3*3)+(2*5)+(1*4)=147
147 % 10 = 7
So 544433-54-7 is a valid CAS Registry Number.