2089-68-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2089-68-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,0,8 and 9 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 2089-68:
(6*2)+(5*0)+(4*8)+(3*9)+(2*6)+(1*8)=91
91 % 10 = 1
So 2089-68-1 is a valid CAS Registry Number.