57491-64-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57491-64-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,4,9 and 1 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 57491-64:
(7*5)+(6*7)+(5*4)+(4*9)+(3*1)+(2*6)+(1*4)=152
152 % 10 = 2
So 57491-64-2 is a valid CAS Registry Number.