543723-90-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 543723-90-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,4,3,7,2 and 3 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 543723-90:
(8*5)+(7*4)+(6*3)+(5*7)+(4*2)+(3*3)+(2*9)+(1*0)=156
156 % 10 = 6
So 543723-90-6 is a valid CAS Registry Number.