52644-81-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 52644-81-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,2,6,4 and 4 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 52644-81:
(7*5)+(6*2)+(5*6)+(4*4)+(3*4)+(2*8)+(1*1)=122
122 % 10 = 2
So 52644-81-2 is a valid CAS Registry Number.