54653-11-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 54653-11-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,6,5 and 3 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 54653-11:
(7*5)+(6*4)+(5*6)+(4*5)+(3*3)+(2*1)+(1*1)=121
121 % 10 = 1
So 54653-11-1 is a valid CAS Registry Number.