107389-89-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 107389-89-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,7,3,8 and 9 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 107389-89:
(8*1)+(7*0)+(6*7)+(5*3)+(4*8)+(3*9)+(2*8)+(1*9)=149
149 % 10 = 9
So 107389-89-9 is a valid CAS Registry Number.