71565-76-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71565-76-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,5,6 and 5 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 71565-76:
(7*7)+(6*1)+(5*5)+(4*6)+(3*5)+(2*7)+(1*6)=139
139 % 10 = 9
So 71565-76-9 is a valid CAS Registry Number.