165133-90-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 165133-90-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,5,1,3 and 3 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 165133-90:
(8*1)+(7*6)+(6*5)+(5*1)+(4*3)+(3*3)+(2*9)+(1*0)=124
124 % 10 = 4
So 165133-90-4 is a valid CAS Registry Number.