665016-90-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 665016-90-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,5,0,1 and 6 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 665016-90:
(8*6)+(7*6)+(6*5)+(5*0)+(4*1)+(3*6)+(2*9)+(1*0)=160
160 % 10 = 0
So 665016-90-0 is a valid CAS Registry Number.