6567-09-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6567-09-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,5,6 and 7 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 6567-09:
(6*6)+(5*5)+(4*6)+(3*7)+(2*0)+(1*9)=115
115 % 10 = 5
So 6567-09-5 is a valid CAS Registry Number.