75189-90-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 75189-90-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,1,8 and 9 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 75189-90:
(7*7)+(6*5)+(5*1)+(4*8)+(3*9)+(2*9)+(1*0)=161
161 % 10 = 1
So 75189-90-1 is a valid CAS Registry Number.