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864757-73-3

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864757-73-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 864757-73-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,6,4,7,5 and 7 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 864757-73:
(8*8)+(7*6)+(6*4)+(5*7)+(4*5)+(3*7)+(2*7)+(1*3)=223
223 % 10 = 3
So 864757-73-3 is a valid CAS Registry Number.

864757-73-3Relevant articles and documents

PYRIDONE DERIVATIVE

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Page/Page column 63, (2010/11/25)

The invention provides pyridone derivatives represented by a general formula (I) [in the formula, R 1 and R 2 may be same or different and stands for H, etc., or R 1 and R 2 may form an aliphatic nitrogen-containing heterocyclic group together with the N to which they bind; X 1 -X 3 may be same or different and stand for methine or N, provided not all of them simultaneously stand for nitrogen; X 4 -X 7 may be same or different and stand for methine or N, provided that three or more of them do not simultaneously stand for N; Y 1 and Y 3 may be same or different and stand for single bond, -0-, -NR-, -S-, etc ; Y 2 stands for lower lkylene, etc.; R stands for H, etc., L stands for methylene; Z 1 and Z 2 may be same or different and stand for single bond or lower alkylene; or R 1 , L and Z 2 may form an aliphatic nitrogen-containing heterocyclic group with the N to which R 1 binds; and Ar stands for aromatic carbocyclic group, etc.].

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