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3-cyano-4-(p-tolyl)pyrido[3,2-c]cinnolin-2(1H)-thione is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

212519-28-3

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212519-28-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 212519-28-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,2,5,1 and 9 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 212519-28:
(8*2)+(7*1)+(6*2)+(5*5)+(4*1)+(3*9)+(2*2)+(1*8)=103
103 % 10 = 3
So 212519-28-3 is a valid CAS Registry Number.

212519-28-3Relevant academic research and scientific papers

New heterocycles from thienopyridocinnolines

Badr,Geies,Abbady,Dahy

, p. 469 - 476 (2007/10/03)

3-Cyano-4-(p-tolyl)pyrido[3,2-c]cinnolin-2(1H) thione 3 was reacted with α-halo ketones, esters, or amides to give the intermediates, S-alkylated products 5b-h, respectively, which underwent intramolecular ring closure reactions with ethanolic sodium ethoxide to give thienopyridocinnolines 6a- h. Pyrimidothienopyridocinnolines 9 and 11 were obtained by treatment of oxazino compound 8 with hydrazine hydrate and ammonium acetate. Treatment of hydrazino derivative 13 with acetylacetone, triethylorthoformate, carbon disulphide, ethyl chloroformate, and acetic anhydride afforded triazolopyrimidothienopyridocinnolines 14-16, 18, and 21, while with nitrous acid the corresponding tetrazolo compound 19 was produced. 3-Cyano-4-(p-tolyl)pyrido[3,2-c]cinnolin-2(1H) thione 3 was reacted with α-halo ketones, esters, or amides to give the intermediates, S-alkylated products 5b-h, respectively, which underwent intramolecular ring closure reactions with ethanolic sodium ethoxide to give thienopyridocinnolines 6a-h. Pyrimidothienopyridocinnolines 9 and 11 were obtained by treatment of oxazino compound 8 with hydrazine hydrate and ammonium acetate. Treatment of hydrazino derivative 13 with acetylacetone, triethylorthoformate, carbon disulphide, ethyl chloroformate, and acetic anhydride afforded triazolopyrimidothienopyridocinnolines 14-16,18, and 21, while with nitrous acid the corresponding tetrazolo compound 19 was produced.

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