163089-74-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 163089-74-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,3,0,8 and 9 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 163089-74:
(8*1)+(7*6)+(6*3)+(5*0)+(4*8)+(3*9)+(2*7)+(1*4)=145
145 % 10 = 5
So 163089-74-5 is a valid CAS Registry Number.