41665-64-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 41665-64-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,1,6,6 and 5 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 41665-64:
(7*4)+(6*1)+(5*6)+(4*6)+(3*5)+(2*6)+(1*4)=119
119 % 10 = 9
So 41665-64-9 is a valid CAS Registry Number.