6471-72-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6471-72-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,4,7 and 1 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 6471-72:
(6*6)+(5*4)+(4*7)+(3*1)+(2*7)+(1*2)=103
103 % 10 = 3
So 6471-72-3 is a valid CAS Registry Number.