544656-85-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 544656-85-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,4,4,6,5 and 6 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 544656-85:
(8*5)+(7*4)+(6*4)+(5*6)+(4*5)+(3*6)+(2*8)+(1*5)=181
181 % 10 = 1
So 544656-85-1 is a valid CAS Registry Number.