55881-66-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 55881-66-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,8,8 and 1 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 55881-66:
(7*5)+(6*5)+(5*8)+(4*8)+(3*1)+(2*6)+(1*6)=158
158 % 10 = 8
So 55881-66-8 is a valid CAS Registry Number.