65605-57-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 65605-57-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,5,6,0 and 5 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 65605-57:
(7*6)+(6*5)+(5*6)+(4*0)+(3*5)+(2*5)+(1*7)=134
134 % 10 = 4
So 65605-57-4 is a valid CAS Registry Number.