91844-80-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91844-80-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,8,4 and 4 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 91844-80:
(7*9)+(6*1)+(5*8)+(4*4)+(3*4)+(2*8)+(1*0)=153
153 % 10 = 3
So 91844-80-3 is a valid CAS Registry Number.