51641-43-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 51641-43-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,6,4 and 1 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 51641-43:
(7*5)+(6*1)+(5*6)+(4*4)+(3*1)+(2*4)+(1*3)=101
101 % 10 = 1
So 51641-43-1 is a valid CAS Registry Number.