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5-hydroxy-2-oxo-6-para-tolylazo-2H-chromene-4-carboxylic acid methyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

1428258-48-3

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1428258-48-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1428258-48-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,8,2,5 and 8 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1428258-48:
(9*1)+(8*4)+(7*2)+(6*8)+(5*2)+(4*5)+(3*8)+(2*4)+(1*8)=173
173 % 10 = 3
So 1428258-48-3 is a valid CAS Registry Number.

1428258-48-3Downstream Products

1428258-48-3Relevant academic research and scientific papers

An experimental and theoretical study on influence of H-bonding on the synthesized azo derivatives structures

Amiri, Rahebeh,Haghdadi, Mina,Golshani, Ashkan,Amiri, Maryam Mohamadian,Barikani, Maryam

, p. 45 - 52 (2013/03/28)

We have reported a simple and efficient reaction for the synthesis of some new functionalized azo structures which were prepared by electron deficient acetylenic compounds in the presence of triphenylphosphine. The characterization of the synthesized azo compounds has been determined by FTIR, UV-Vis, 1H NMR, 13C NMR andMass spectroscopic techniques. The influence of H-bonding on the products has been shown by different experimental analysis. Also, the regioselectivity of the reaction, tautomerization equilibrium and the stability of products was investigated using DFT calculations at the B3LYP/6-31G level of theory.

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