26131-38-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 26131-38-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,6,1,3 and 1 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 26131-38:
(7*2)+(6*6)+(5*1)+(4*3)+(3*1)+(2*3)+(1*8)=84
84 % 10 = 4
So 26131-38-4 is a valid CAS Registry Number.