91092-18-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91092-18-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,0,9 and 2 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 91092-18:
(7*9)+(6*1)+(5*0)+(4*9)+(3*2)+(2*1)+(1*8)=121
121 % 10 = 1
So 91092-18-1 is a valid CAS Registry Number.