41656-33-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 41656-33-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,1,6,5 and 6 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 41656-33:
(7*4)+(6*1)+(5*6)+(4*5)+(3*6)+(2*3)+(1*3)=111
111 % 10 = 1
So 41656-33-1 is a valid CAS Registry Number.