816442-95-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 816442-95-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,1,6,4,4 and 2 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 816442-95:
(8*8)+(7*1)+(6*6)+(5*4)+(4*4)+(3*2)+(2*9)+(1*5)=172
172 % 10 = 2
So 816442-95-2 is a valid CAS Registry Number.