264128-68-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 264128-68-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,6,4,1,2 and 8 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 264128-68:
(8*2)+(7*6)+(6*4)+(5*1)+(4*2)+(3*8)+(2*6)+(1*8)=139
139 % 10 = 9
So 264128-68-9 is a valid CAS Registry Number.