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4-Isoxazolecarboxylic acid, 2,5-dihydro-5-oxo-2-phenyl-, ethyl ester is a complex organic compound with the chemical formula C12H9NO3. It is a derivative of isoxazole, a heterocyclic compound containing a five-membered ring with one oxygen and three carbon atoms, and a carbonyl group. The molecule features a 2,5-dihydro-5-oxo-2-phenyl group, which consists of a dihydro (two hydrogen atoms) and a 5-oxo (one oxygen atom) structure attached to a phenyl ring. The ethyl ester functional group is attached to the 4-isoxazolecarboxylic acid, forming an ester linkage. 4-Isoxazolecarboxylic acid, 2,5-dihydro-5-oxo-2-phenyl-, ethyl ester is known for its potential applications in pharmaceuticals and chemical research, particularly in the synthesis of various biologically active molecules.

4504-12-5

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4504-12-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4504-12-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,5,0 and 4 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 4504-12:
(6*4)+(5*5)+(4*0)+(3*4)+(2*1)+(1*2)=65
65 % 10 = 5
So 4504-12-5 is a valid CAS Registry Number.

4504-12-5SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name ethyl 5-oxo-2-phenyl-1,2-oxazole-4-carboxylate

1.2 Other means of identification

Product number -
Other names 4-Isoxazolecarboxylic acid,2,5-dihydro-5-oxo-2-phenyl-,ethyl ester

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:4504-12-5 SDS

4504-12-5Relevant academic research and scientific papers

The Chemistry of 5-Oxodihydroisoxazoles. XIV. Synthesis of 2-(1-Aryltetrazol-5-yl)propanoic Acids

Caiazza, Daniela,Prager, Rolf H.,Schafer, Karl

, p. 1861 - 1872 (2007/10/03)

A number of N-arylisoxazol-5(2H)-ones (aryl = phenyl, isoquinolin-1-yl, quinolin-2-yl, 2-phenylquinazolin-4-yl and benzothiazol-2-yl) have been reacted with lithium azide to give 2-(1-aryltetrazol-5-yl)acetic esters, which have been C-methylated and hydrolysed.The resulting 2-(1-aryltetrazol-5-yl)propanoic acid had low antiinflammatory activity, as judged by inhibition of synthesis of prostaglandin PGE2 or tumor necrosis factor α.

The chemistry of 5-oxodihydroisoxazoles V: The photolysis of 2-phenylisoxazol-5(2H)-one ln alcohols

Ang, Kiah H.,Prager, Rolf H.

, p. 9073 - 9084 (2007/10/02)

Ethyl 5-oxo-2-phenyl-2,5-dihydroisoxazole-4-carboxylate (1) has been photolysed in methanol, ethanol, 1-propanol, 2-propanol, 1-butanol, t-butyl alcohol, allyl alcohol and propargyl alcohol, and the products characterised. Two types of photo products are formed: methanetricarboxylic acid derivatives resulting from alcohol capture of the first formed ketene, and 2-alkoxy-3-phenylaminoacrylates, formed by capture, by the alcohol, of the imino-carbene arising from (1) by loss of carbon dioxide.

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