169892-90-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 169892-90-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,9,8,9 and 2 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 169892-90:
(8*1)+(7*6)+(6*9)+(5*8)+(4*9)+(3*2)+(2*9)+(1*0)=204
204 % 10 = 4
So 169892-90-4 is a valid CAS Registry Number.