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1245705-43-4

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1245705-43-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1245705-43-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,5,7,0 and 5 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1245705-43:
(9*1)+(8*2)+(7*4)+(6*5)+(5*7)+(4*0)+(3*5)+(2*4)+(1*3)=144
144 % 10 = 4
So 1245705-43-4 is a valid CAS Registry Number.

1245705-43-4Downstream Products

1245705-43-4Relevant articles and documents

Multicomponent tandem synthesis of oxospirobicyclic butenolidobarbiturates

Teimouri, Mohammad Bagher,Abbasi, Tayyebeh,Khavasi, Hamid Reza

experimental part, p. 310 - 314 (2010/10/21)

Novel oxospirobicyclic γ-butenolides containing barbiturate moiety have been synthesised by the Michael-addition of primary amines to dialkyl acetylenedicarboxylates followed by aldol-like reaction with alloxan derivatives, and then ?-lactonisation. Subsequent 1,4-addition of water and elimination of the amine group completes the sequence. This tandem reaction sequence represents a rapid and unprecedented route to the described biologically interesting molecules.

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