4725-97-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4725-97-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,7,2 and 5 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 4725-97:
(6*4)+(5*7)+(4*2)+(3*5)+(2*9)+(1*7)=107
107 % 10 = 7
So 4725-97-7 is a valid CAS Registry Number.