189573-83-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 189573-83-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,9,5,7 and 3 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 189573-83:
(8*1)+(7*8)+(6*9)+(5*5)+(4*7)+(3*3)+(2*8)+(1*3)=199
199 % 10 = 9
So 189573-83-9 is a valid CAS Registry Number.