94521-91-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 94521-91-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,4,5,2 and 1 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 94521-91:
(7*9)+(6*4)+(5*5)+(4*2)+(3*1)+(2*9)+(1*1)=142
142 % 10 = 2
So 94521-91-2 is a valid CAS Registry Number.