75665-65-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 75665-65-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,6,6 and 5 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 75665-65:
(7*7)+(6*5)+(5*6)+(4*6)+(3*5)+(2*6)+(1*5)=165
165 % 10 = 5
So 75665-65-5 is a valid CAS Registry Number.