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4,6-dihydroxy-5-nitroisophthalaldehyde is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

1421703-20-9

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1421703-20-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1421703-20-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,1,7,0 and 3 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1421703-20:
(9*1)+(8*4)+(7*2)+(6*1)+(5*7)+(4*0)+(3*3)+(2*2)+(1*0)=109
109 % 10 = 9
So 1421703-20-9 is a valid CAS Registry Number.

1421703-20-9Downstream Products

1421703-20-9Relevant academic research and scientific papers

General and efficient protocol for formylation of aromatic and heterocyclic phenols

Skonieczny, Kamil,Charalambidis, Georgios,Tasior, Mariusz,Krzeszewski, MacIej,Kalkan-Burat, Ayfer,Coutsolelos, Athanassios G.,Gryko, Daniel T.

, p. 3683 - 3687 (2012)

A convenient, general procedure for formylation of diverse range of phenols with the Duff protocol has been developed. The procedure gives dialdehydes when possible. Georg Thieme Verlag KG Stuttgart · New York.

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