59665-59-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 59665-59-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,9,6,6 and 5 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 59665-59:
(7*5)+(6*9)+(5*6)+(4*6)+(3*5)+(2*5)+(1*9)=177
177 % 10 = 7
So 59665-59-7 is a valid CAS Registry Number.