100239-68-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 100239-68-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,0,2,3 and 9 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 100239-68:
(8*1)+(7*0)+(6*0)+(5*2)+(4*3)+(3*9)+(2*6)+(1*8)=77
77 % 10 = 7
So 100239-68-7 is a valid CAS Registry Number.