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7203-56-7

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7203-56-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 7203-56-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,2,0 and 3 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 7203-56:
(6*7)+(5*2)+(4*0)+(3*3)+(2*5)+(1*6)=77
77 % 10 = 7
So 7203-56-7 is a valid CAS Registry Number.

7203-56-7Relevant articles and documents

Effect of substituents on crystal packing of functionalized 4,4′-bis(benzylideneamino)diphenyl ether(s) and their reduced benzyl forms: Synthesis, characterization, optical and thermal properties

Kadu, Rahul,Singh, Vinay K.,Verma, Sanjay K.,Raghavaiah, Pallepogu,Shaikh, Mobin M.

, p. 298 - 311 (2013/02/23)

In this paper we report the synthesis of 4,4′-bis(benzylideneamino) diphenyl ether (1), 4,4′-bis(p-methoxybenzylideneamino)diphenyl ether (2), 4,4′-bis(p-nitrobenzylideneamino)diphenyl ether (3), 4,4′- bis(benzylamino)diphenyl ether (4) and 4,4′-bis(p-met

SYNTHESIS, NMR INVESTIGATION AND FAB-MS CHARACTERIZATION OF 1-AMINO-2-ARYLMETHYL-DIPHOSPHONATE ESTERS

Failla, Salvatore,Finocchiaro, Paolo,Hagele, Gerhard,Rapisardi, Roberto

, p. 79 - 90 (2007/10/02)

Variously substituted amino aryl-methyl-diphosphonate ethyl esters have been prepared in good yields by adding diethyl phosphonate to the corresponding Schiff bases.All compounds were characterized by NMR and MS-FAB techniques, which reveal the presence o

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