268540-23-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 268540-23-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,6,8,5,4 and 0 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 268540-23:
(8*2)+(7*6)+(6*8)+(5*5)+(4*4)+(3*0)+(2*2)+(1*3)=154
154 % 10 = 4
So 268540-23-4 is a valid CAS Registry Number.