55634-72-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 55634-72-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,6,3 and 4 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 55634-72:
(7*5)+(6*5)+(5*6)+(4*3)+(3*4)+(2*7)+(1*2)=135
135 % 10 = 5
So 55634-72-5 is a valid CAS Registry Number.