4290-94-2 Usage
General Description
1-Ethyl-1H-indole-2,3-dione, also known as isatin, is a heterocyclic organic compound with the molecular formula C9H7NO2. It is primarily used in the synthesis of many pharmaceuticals, dyes, and other organic compounds. Isatin has been studied for its potential medicinal properties, including anti-inflammatory, anti-cancer, and anti-microbial effects. It has also been used in the development of fluorescent dyes for various biological applications. Isatin is a versatile compound that has garnered interest in both the pharmaceutical and chemical industries for its potential therapeutic and industrial applications.
Check Digit Verification of cas no
The CAS Registry Mumber 4290-94-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,2,9 and 0 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 4290-94:
(6*4)+(5*2)+(4*9)+(3*0)+(2*9)+(1*4)=92
92 % 10 = 2
So 4290-94-2 is a valid CAS Registry Number.
InChI:InChI=1/C10H9NO2/c1-2-11-8-6-4-3-5-7(8)9(12)10(11)13/h3-6H,2H2,1H3
4290-94-2Relevant articles and documents
Novel ring contraction of 3-hydroxy-2,4(1H,3H)-quinolinediones in aqueous alkali. The first convenient route to 2-hydroxyindoxyls
Kafka,Klasek,Kosmrlj
, p. 6394 - 6399 (2007/10/03)
Ring contraction of 3-hydroxy-2,4(1H, 3H)-quinolinediones (1) in aqueous potassium hydroxide resulted in the formation of 2-hydroxyindoxyls and/or dioxindoles. The choice of N-substituent and the reaction conditions govern the chemoselectivity of the reaction. N-Phenyl-substituted derivatives 1 give 2-hydroxyindoxyls, while N-alkyl- and N-benzyl-substituted derivatives afford the corresponding dioxindols. On the basis of byproduct analysis, as well as independent experiments, the most plausible reaction mechanism is proposed.
