131908-89-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131908-89-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,9,0 and 8 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 131908-89:
(8*1)+(7*3)+(6*1)+(5*9)+(4*0)+(3*8)+(2*8)+(1*9)=129
129 % 10 = 9
So 131908-89-9 is a valid CAS Registry Number.