91193-92-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91193-92-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,1,9 and 3 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 91193-92:
(7*9)+(6*1)+(5*1)+(4*9)+(3*3)+(2*9)+(1*2)=139
139 % 10 = 9
So 91193-92-9 is a valid CAS Registry Number.