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20904-57-8

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20904-57-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20904-57-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,9,0 and 4 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 20904-57:
(7*2)+(6*0)+(5*9)+(4*0)+(3*4)+(2*5)+(1*7)=88
88 % 10 = 8
So 20904-57-8 is a valid CAS Registry Number.

20904-57-8Relevant articles and documents

Mustard Carbonate Analogues as Sustainable Reagents for the Aminoalkylation of Phenols

Annatelli, Mattia,Trapasso, Giacomo,Salaris, Claudio,Salata, Cristiano,Castellano, Sabrina,Aricò, Fabio

supporting information, p. 3459 - 3464 (2021/05/24)

N,N-dialkyl ethylamine moiety can be found in numerous scaffolds of macromolecules, catalysts, and especially pharmaceuticals. Common synthetic procedures for its incorporation in a substrate relies on the use of a nitrogen mustard gas or on multistep syntheses featuring chlorine hazardous/toxic chemistry. Reported herein is a one-pot synthetic approach for the easy introduction of aminoalkyl chain into different phenolic substrates through dialkyl carbonate (β-aminocarbonate) chemistry. This new direct alcohol substitution avoids the use of chlorine chemistry, and it is efficient on numerous pharmacophore scaffolds with good to quantitative yield. The cytotoxicity via MTT of the β-aminocarbonate, key intermediate of this synthetic approach, was also evaluated and compared with its alcohol precursor.

SALTS OF INHIBITORS OF HISTONE DEACETYLASE FOR THE TREATMENT OF DISEASE

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Page/Page column 45, (2008/12/06)

Disclosed herein are salts of carbonyl compounds as inhibitors of histone deacetylase (HDAC), useful in treating disease states including cancers, autoimmune diseases, tissue damage, central nervous system disorders, neurodegenerative disorders, fibrosis,

Pyridiniums as potential synthetic substitutes for nitrogen mustards

Katritzky,Burgess,Patel

, p. 741 - 745 (2007/10/02)

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