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4-methyl-N'-(3-methylbut-2-en-1-ylidene)benzenesulfonohydrazide is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

91557-69-6

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91557-69-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91557-69-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,5,5 and 7 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 91557-69:
(7*9)+(6*1)+(5*5)+(4*5)+(3*7)+(2*6)+(1*9)=156
156 % 10 = 6
So 91557-69-6 is a valid CAS Registry Number.

91557-69-6Relevant academic research and scientific papers

Base-Promoted Denitrogenative/Deoxygenative/Deformylative Benzannulation of N-Tosylhydrazones with 3-Formylchromones for Diverse and Polyfunctionalized Xanthones

Shrestha, Rajeev,Lee, Yong Rok

supporting information, p. 7167 - 7171 (2018/11/23)

A simple and efficient base-promoted denitrogenative/deoxygenative/deformylative benzannulation is developed for the construction of biologically interesting polyfunctionalized xanthones starting from N-tosylhydrazones and two molecules of 3-formylchromon

One-step synthesis of sulfonamides from N-tosylhydrazones

Tsai, Andy S.,Curto, John M.,Rocke, Benjamin N.,Dechert-Schmitt, Anne-Marie R.,Ingle, Gajendrasingh K.,Mascitti, Vincent

supporting information, p. 508 - 511 (2016/02/18)

The first described reaction between N-tosylhydrazone and SO2 is reported to provide alkyl sulfonamides in the presence of various amines. In this procedurally simple method, hydrazones of both unsaturated aldehydes and ketones proceed in moder

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