131489-39-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131489-39-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,4,8 and 9 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 131489-39:
(8*1)+(7*3)+(6*1)+(5*4)+(4*8)+(3*9)+(2*3)+(1*9)=129
129 % 10 = 9
So 131489-39-9 is a valid CAS Registry Number.