55635-23-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 55635-23-9 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 5 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 55635-23:
(7*5)+(6*5)+(5*6)+(4*3)+(3*5)+(2*2)+(1*3)=129
129 % 10 = 9
So 55635-23-9 is a valid CAS Registry Number.