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19532-73-1

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19532-73-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 19532-73-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,5,3 and 2 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 19532-73:
(7*1)+(6*9)+(5*5)+(4*3)+(3*2)+(2*7)+(1*3)=121
121 % 10 = 1
So 19532-73-1 is a valid CAS Registry Number.

19532-73-1Downstream Products

19532-73-1Relevant articles and documents

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Levine,Wehmhoff

, p. 1243,1244 (1929)

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1H, 13C, 15N, 2D and Variable Temperature NMR Study of the Role of Hydrogen Bonding in the Structure and Conformation of Oxamide Derivatives

Martinez-Martinez, Francisco Javier,Ariza-Castolo, Armando,Tlahuext, Hugo,Tlahuextl, Margarita,Contreras, Rosalinda

, p. 1481 - 1485 (2007/10/02)

The structure and conformation of N,N'-bisoxamide (1); N,N'-bisoxamide (2); N,N'-bis(phenyl)oxamide (3); N,N'-bisoxamide (4); N,N'-bisoxamide (5); N-methylamide (6); N-methylamide (7); N-phenylmethylamide (8); N-methylamide (9) and N-methylamide (10) were unambiguously established by 1H, 13C, 15N, 2D and variable temperature NMR spectroscopy.A careful NMR investigation of the conformational behaviour in these systems was relevant.It has been found that the dicarbonylic group in compounds 1-5 has a trans geometry, stabilized by intramolecular hydrogen bonding and that they possess a C2 axis.Compounds 1 and 2 are planar and compounds 1, 2, 4 and 5 present the amidic proton coordinated by two oxygen atoms.

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