6717-34-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6717-34-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,7,1 and 7 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 6717-34:
(6*6)+(5*7)+(4*1)+(3*7)+(2*3)+(1*4)=106
106 % 10 = 6
So 6717-34-6 is a valid CAS Registry Number.