1131007-56-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1131007-56-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,3,1,0,0 and 7 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1131007-56:
(9*1)+(8*1)+(7*3)+(6*1)+(5*0)+(4*0)+(3*7)+(2*5)+(1*6)=81
81 % 10 = 1
So 1131007-56-1 is a valid CAS Registry Number.