665006-61-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 665006-61-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,5,0,0 and 6 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 665006-61:
(8*6)+(7*6)+(6*5)+(5*0)+(4*0)+(3*6)+(2*6)+(1*1)=151
151 % 10 = 1
So 665006-61-1 is a valid CAS Registry Number.