107389-92-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 107389-92-4 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, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 107389-92:
(8*1)+(7*0)+(6*7)+(5*3)+(4*8)+(3*9)+(2*9)+(1*2)=144
144 % 10 = 4
So 107389-92-4 is a valid CAS Registry Number.