921-11-9

Basic information

• Product Name: pentane-2,3,4-trione
• Synonyms: 2,3,4-Pentanetrione
• CAS NO: 921-11-9
• Molecular Formula: C₅H₆O₃
• Molecular Weight: 114.0993
• Mol File: 921-11-9.mol
• Article Data: 2

Chemical Properties

• Boiling Point: 182°C at 760 mmHg
• Flash Point: 62.6°C
• Density: 1.113g/cm³
• Vapor Pressure: 0.828mmHg at 25°C
• Refractive Index: 1.408
• CAS DataBase Reference: pentane-2,3,4-trione(CAS DataBase Reference)
• NIST Chemistry Reference: pentane-2,3,4-trione(921-11-9)
• EPA Substance Registry System: pentane-2,3,4-trione(921-11-9)

Safety Data

• Hazardous Substances Data: 921-11-9(Hazardous Substances Data)

Upstream product

• 109703-65-3 3-(4-Acetyl-2,3-dihydro-2,5-dimethyl-3-phenyl-2-furylimino)-2,4-pentandion 
• 17354-63-1 4-(2-nitro-propenyl)-anisole 
• 123-54-6 acetylacetone 
• 6306-34-9 1-(2-methoxyphenyl)-2-nitropropene 
• 710-20-3 1-chloro-4-(2-nitropropenyl)benzene 
• 4231-16-7 1-(p-nitrophenyl)-2-nitro-1-propene 
• 52287-56-6 1-(p-tolyl)-2-nitropropene 
• 31253-16-4 1-(3'-nitrophenyl)-2-nitroprop-1-ene 
• 18982-46-2 1-nitro-2-[2-nitroprop-1-en-1-yl]benzene 
• 86969-37-1 1-(m-methylphenyl)-2-nitro-1-propene 
• 33884-41-2 ethoxylideneacetylacetone 

Downstream Products

• 13867-01-1 Pentan-2,3,4-trion-2,3-bis-methylphenylhydrazon 
• 540-88-5 acetic acid tert-butyl ester 
• 107-71-1 tert-butyl peroxyacetate 
• 75-65-0 tert-butyl alcohol 
• 26367-45-3 N-formylsarcolysine 
• 64-19-7 acetic acid 
• 127-17-3 2-oxo-propionic acid 
• 22059-64-9 2-methyl-3-acetylquinoxaline 
• 2379-55-7 2,3-dimethylquinoxaline 

Relevant articles and documents

Ozonolysis of enol ethers. Part 10. Ozonization of enol ethers from 1,2- and 1,3-dicarbonyl compounds: Direct quantitative synthesis of phthalonic acid anhydride

The results of ozonolyses of enol ethers from 1.2- and 1.3-dicarbonyl compounds presented here strongly indicate that these reactions do not proceed via the established Criegee ozonolysis mechanism for nucleophilic C=C bonds. The quantitative one-step synthesis of phthalonic acid anhydride via ozonolysis of 2-(methoxymethyliden)-1H-inden-1.3(2H)-dione (28a) is described. Furthermore, a revision of the theory of alkene ozonolysis in the presence of tetracyanoethylene (TCNE) is proposed on the basis of a single-electron-transfer (SET) chemistry.