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99789-57-8

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99789-57-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 99789-57-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,7,8 and 9 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 99789-57:
(7*9)+(6*9)+(5*7)+(4*8)+(3*9)+(2*5)+(1*7)=228
228 % 10 = 8
So 99789-57-8 is a valid CAS Registry Number.

99789-57-8Downstream Products

99789-57-8Relevant articles and documents

Palladium-catalyzed three-component approach to promazine with formation of one carbon-sulfur and two carbon-nitrogen bonds

Dahl, Troels,Tornoe, Christian W.,Bang-Andersen, Benny,Nielsen, Poul,Jorgensen, Morten

supporting information; scheme or table, p. 1726 - 1728 (2009/02/06)

(Chemical Presented) Zip it up! The use of a Pd/dppf catalyst gives access to the tricyclic phenothiazine scaffold starting from 1-bromo-2-iodobenzenes, aliphatic or aromatic amines, and 2-bromothiophenols in a single reaction flask (see scheme; dppf=1,1′-bis(diphenylphosphanyl) ferrocene; dba=dibenzylidineacetone). This transformation involves thioether formation and subsequent intermolecular and intramolecular aryl amination reactions. The reaction occurs in good overall yield and selectivity.

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