1026238-28-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1026238-28-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,6,2,3 and 8 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1026238-28:
(9*1)+(8*0)+(7*2)+(6*6)+(5*2)+(4*3)+(3*8)+(2*2)+(1*8)=117
117 % 10 = 7
So 1026238-28-7 is a valid CAS Registry Number.