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3-Amino-4,4-dicyano-2-(phenyl-hydrazono)-but-3-enoic acid ethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

128755-83-9

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128755-83-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128755-83-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,7,5 and 5 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 128755-83:
(8*1)+(7*2)+(6*8)+(5*7)+(4*5)+(3*5)+(2*8)+(1*3)=159
159 % 10 = 9
So 128755-83-9 is a valid CAS Registry Number.

128755-83-9Relevant academic research and scientific papers

THE STRUCTURE OF PRODUCTS OF COUPLING OF ARENEDIAZONIUM SALTS WITH 3-AMINOCROTONONITRILE DERIVATIVES

Elnagdi, Mohamed Hilmy,Sadek, Kamal Usef,Taha, Nadia Mohamed,Yassin, Youssef Mahfous

, p. 734 - 744 (2007/10/02)

The structure of products of coupling arenediazonium salts with 3-aminocrotononitrile derivatives is reported.The spectral data as well as the chemical behaviour of coupling products indicated that it is the hydrazone in (E)-form.

Nitriles in heterocyclic synthesis: Synthesis of some new pyridine, pyridazine and pyrimidine derivatives

Mohamed, Mona Hassan,Ibrahim, Nadia Sobhy,Elnagdi, Mohamed Hilmy

, p. 899 - 902 (2007/10/02)

Pyrimidine, pyridazine, pyridine and pyrazolopyrimidine derivatives were synthesised from 3-amino-2-cyano-4-ethoxycarbonylcrotononitrile (1) as a starting material.

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