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104439-01-2

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104439-01-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 104439-01-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,4,3 and 9 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 104439-01:
(8*1)+(7*0)+(6*4)+(5*4)+(4*3)+(3*9)+(2*0)+(1*1)=92
92 % 10 = 2
So 104439-01-2 is a valid CAS Registry Number.

104439-01-2Downstream Products

104439-01-2Relevant articles and documents

1,3-Ambident Nucleophilic Phosphorus Ylides, V. (2-Iminoethylidene)phosphoranes

Capuano, Lilly,Dahm, Birgit,Schramm, Volker

, p. 3536 - 3543 (2007/10/02)

The title compounds 8 undergo α,γ-reaction with dicarbonyl dichlorides (4, 5), mono- (9) and dicarboximidoyl chlorides (7) and N,N-bis(chloroformyl)amines (12) to give five- and six-membered N-heterocyclic phoshonium salts (1, 3, 6, 10, 14). - The 1,3-dipolar cycloaddition with N-phenylbenzonitrile imide (11) opens the way to a new one-step synthesis of 1,3,4,5-tetraaryl-1,2,4-triazolium salts 17.The structure of pyrrole derivative 2 is elucidated by X-ray analysis.

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