1311275-26-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1311275-26-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,1,1,2,7 and 5 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1311275-26:
(9*1)+(8*3)+(7*1)+(6*1)+(5*2)+(4*7)+(3*5)+(2*2)+(1*6)=109
109 % 10 = 9
So 1311275-26-9 is a valid CAS Registry Number.