91044-44-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91044-44-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,0,4 and 4 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 91044-44:
(7*9)+(6*1)+(5*0)+(4*4)+(3*4)+(2*4)+(1*4)=109
109 % 10 = 9
So 91044-44-9 is a valid CAS Registry Number.