189828-67-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 189828-67-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,9,8,2 and 8 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 189828-67:
(8*1)+(7*8)+(6*9)+(5*8)+(4*2)+(3*8)+(2*6)+(1*7)=209
209 % 10 = 9
So 189828-67-9 is a valid CAS Registry Number.