189253-49-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 189253-49-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,9,2,5 and 3 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 189253-49:
(8*1)+(7*8)+(6*9)+(5*2)+(4*5)+(3*3)+(2*4)+(1*9)=174
174 % 10 = 4
So 189253-49-4 is a valid CAS Registry Number.