66810-10-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 66810-10-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,8,1 and 0 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 66810-10:
(7*6)+(6*6)+(5*8)+(4*1)+(3*0)+(2*1)+(1*0)=124
124 % 10 = 4
So 66810-10-4 is a valid CAS Registry Number.