666208-71-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 666208-71-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,6,2,0 and 8 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 666208-71:
(8*6)+(7*6)+(6*6)+(5*2)+(4*0)+(3*8)+(2*7)+(1*1)=175
175 % 10 = 5
So 666208-71-5 is a valid CAS Registry Number.