55562-57-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 55562-57-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,5,6 and 2 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 55562-57:
(7*5)+(6*5)+(5*5)+(4*6)+(3*2)+(2*5)+(1*7)=137
137 % 10 = 7
So 55562-57-7 is a valid CAS Registry Number.