20552-76-5

Basic information

• Product Name: ethyl (4E)-4-[2-(2,4-dinitrophenyl)hydrazinylidene]butanoate
• Synonyms: Ethyl (4E)-4-[(2,4-dinitrophenyl)hydrazono]butanoate; Ethyl 4-(2,4-dinitrophenylhydrazono)butyrate
• CAS NO: 20552-76-5
• Molecular Formula: C₁₂H₁₄N₄O₆
• Molecular Weight: 310.2628
• Mol File: 20552-76-5.mol

Chemical Properties

• Boiling Point: 472.955°C at 760 mmHg
• Flash Point: 239.835°C
• Density: 1.408g/cm³
• Vapor Pressure: 0mmHg at 25°C
• Refractive Index: 1.594
• CAS DataBase Reference: ethyl (4E)-4-[2-(2,4-dinitrophenyl)hydrazinylidene]butanoate(CAS DataBase Reference)
• NIST Chemistry Reference: ethyl (4E)-4-[2-(2,4-dinitrophenyl)hydrazinylidene]butanoate(20552-76-5)
• EPA Substance Registry System: ethyl (4E)-4-[2-(2,4-dinitrophenyl)hydrazinylidene]butanoate(20552-76-5)

Safety Data

• Hazardous Substances Data: 20552-76-5(Hazardous Substances Data)

Upstream product

• 64-17-5 ethanol 
• 50838-91-0 γ-Trifluormethylazobuttersaeure 
• 119-26-6 (2,4-dinitro-phenyl)-hydrazine 
• 10138-10-0 ethyl 4-oxobutanoate 

Relevant articles and documents

Transformation of acid chlorides into aldehydes by reduction of in-situ formed acyltributylphosphonium ions with zinc-copper couple or zinc

Transformation of acid chlorides into the corresponding aldehydes without over-reduction to alcohols was effectively achieved by the reduction of acyltributylphosphonium ions, formed in-situ from the chlorides and tributylphosphine in CH3CN, with Zn-Cu couple or Zn in the presence of CH3SO3H under an N2 atmosphere.