131007-91-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131007-91-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,0,0 and 7 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 131007-91:
(8*1)+(7*3)+(6*1)+(5*0)+(4*0)+(3*7)+(2*9)+(1*1)=75
75 % 10 = 5
So 131007-91-5 is a valid CAS Registry Number.