66780-85-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 66780-85-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,7,8 and 0 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 66780-85:
(7*6)+(6*6)+(5*7)+(4*8)+(3*0)+(2*8)+(1*5)=166
166 % 10 = 6
So 66780-85-6 is a valid CAS Registry Number.