5765-53-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5765-53-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,7,6 and 5 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 5765-53:
(6*5)+(5*7)+(4*6)+(3*5)+(2*5)+(1*3)=117
117 % 10 = 7
So 5765-53-7 is a valid CAS Registry Number.