51664-93-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 51664-93-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,6,6 and 4 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 51664-93:
(7*5)+(6*1)+(5*6)+(4*6)+(3*4)+(2*9)+(1*3)=128
128 % 10 = 8
So 51664-93-8 is a valid CAS Registry Number.