55861-42-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 55861-42-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,8,6 and 1 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 55861-42:
(7*5)+(6*5)+(5*8)+(4*6)+(3*1)+(2*4)+(1*2)=142
142 % 10 = 2
So 55861-42-2 is a valid CAS Registry Number.