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540755-13-3

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540755-13-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 540755-13-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,4,0,7,5 and 5 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 540755-13:
(8*5)+(7*4)+(6*0)+(5*7)+(4*5)+(3*5)+(2*1)+(1*3)=143
143 % 10 = 3
So 540755-13-3 is a valid CAS Registry Number.

540755-13-3Relevant academic research and scientific papers

New synthetic routes for N-substituted 1,n-diamines. II. Synthesis of selectively N-substituted tetra- and pentamethylenediamines from ω-alkanoic acid derivatives

Ramírez, María A.,Corona, María V.,Ortiz, Gisela,Salerno, Alejandra,Perillo, Isabel A.,Blanco, María M.

, p. 1466 - 1468 (2011)

A new approach for the synthesis of selectively N-substituted tetra- and pentamethylenediamines 1 (n = 4,5) is described. The method uses N-substituted ω-haloalkanamides 2 as precursors and involves the microwave-promoted conversion into ω-azidocarboxamides 3 and later the reduction of both azido and carboxamide groups with diborane.

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