2057-84-3

Basic information

• Product Name: N-VALERALDEHYDE 2,4-DINITROPHENYLHYDRAZONE
• Synonyms: (1E)-Pentanal (2,4-dinitrophenyl)hydrazone;Pentanal, (2,4-dinitrophenyl)hydrazone;VALERALDEHYDE 2,4-DINITROPHENYLHYDRAZONE;VALERALDEHYDE-DNPH;VALERALDEHYDE (DNPH DERIVATIVE);N-PENTANAL 2,4-DINITROPHENYLHYDRAZONE;N-VALERALDEHYDE 2,4-DINITROPHENYLHYDRAZONE;N-VALERALDEHYDE-DNPH
• CAS NO: 2057-84-3
• Molecular Formula: C₁₁H₁₄N₄O₄
• Molecular Weight: 266.25
• EINECS: 200-835-2
• Mol File: 2057-84-3.mol
• Article Data: 6

Chemical Properties

• Melting Point: 103-105 °C(lit.)
• Boiling Point: 412.6°Cat760mmHg
• Flash Point: 2℃
• Appearance: /
• Density: 1.32g/cm³
• Vapor Pressure: 5.12E-07mmHg at 25°C
• Refractive Index: 1.592
• Storage Temp.: 0-6°C
• PKA: 12.20±0.10(Predicted)
• CAS DataBase Reference: N-VALERALDEHYDE 2,4-DINITROPHENYLHYDRAZONE(CAS DataBase Reference)
• NIST Chemistry Reference: N-VALERALDEHYDE 2,4-DINITROPHENYLHYDRAZONE(2057-84-3)
• EPA Substance Registry System: N-VALERALDEHYDE 2,4-DINITROPHENYLHYDRAZONE(2057-84-3)

Safety Data

• Hazard Codes: Xi,T,F,Xn
• Statements: 36/37/38-23/24/25-11-36-20/21/22
• Safety Statements: 26-45-27-16-36/37
• RIDADR: UN 1648 3/PG 2
• WGK Germany: 3
• Hazardous Substances Data: 2057-84-3(Hazardous Substances Data)

Usage

Uses

Valeraldehyde-?2,?4-?dinitrophenylhydrazo?ne is a stain/dye. Dyes and metabolites.

Synthesis Reference(s)

The Journal of Organic Chemistry, 56, p. 2143, 1991 DOI: 10.1021/jo00006a034

InChI:InChI=1/C11H14N4O4/c1-2-3-4-7-12-13-10-6-5-9(14(16)17)8-11(10)15(18)19/h5-8,13H,2-4H2,1H3

Upstream product

• 110-62-3 pentanal 
• 119-26-6 (2,4-dinitro-phenyl)-hydrazine 
• 3658-79-5 1,1-diethoxypentane 
• 201230-67-3 2,4-pentanedienal 
• 60484-84-6 2-(Trimethylsilyl)-1-pentene oxide 
• 26593-47-5 1,1,-dichloro-1-pentene 
• 3922-27-8 1,1,1-trichloropentane 
• 13959-97-2 2-thiophenealdehyde diethyl acetal 
• 71-41-0 pentan-1-ol 
• 132724-55-1 1-(benzotriazol-1-yl)-1-(carbazol-9-yl)-pentane 
• 90676-32-7 (Z)-1-Butoxy-pent-1-ene 
• 78839-96-0 (E/Z)-pent-1-enyl phenyl sulfide 
• 53282-54-5 (Z)-1-trimethylsilyloxypent-1-ene 
• 998-77-6 1-iodo-pentan-2-ol 

Downstream Products

• 1233237-81-4 C₁₃H₁₆N₄O₅S 

Relevant articles and documents

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Kinetics and mechanism of the oxidation of aliphatic primary alcohols by imidazolium fluorochromate

The oxidation of nine aliphatic primary alcohols by imidazolium fluorochromate (IFC) in dimethylsulphoxide leads to the formation of corresponding aldehydes. The reaction is first order with respect to IFC. A Michaelis-Menten type kinetics is observed with respect to alcohols. The reaction is promoted by hydrogen ions; the hydrogen-ion dependence has the form : kobs = a + b [H+]. The oxidation of [1,1- 2H2]ethanol (MeCD2OH) exhibits a substantial primary kinetic isotope effect (kH/kD = 5.87 at 298 K). The reaction has been studied in nineteen different organic solvents. The solvent effect was analysed using Taft's and Swain's multiparametric equations. The rate of oxidation is susceptible to both polar and steric effects of the substituents. A suitable mechanism has been proposed.

Oxidation of aliphatic primary alcohols by morpholinium chlorochromate: A kinetic and mechanistic approach

The oxidation of nine aliphatic primary alcohols by morpholinium chlorochromate (MCC) in dimethylsulfoxide leads to the transformation of alcohols to the corresponding aldehydes. The reaction is first order with respect to both MCC and the alcohol both. The reaction is catalysed by hydrogen ions. The hydrogen-ion dependence has the form: kobs = a + A[H +]. The oxidation of [1,1-2H2]ethanol (MeCD2OH) exhibits a substantial primary kinetic isotope effect. The reaction has been studied in nineteen different organic solvents. The solvent effect was analysed using Taft's and Swain's multiparametric equations. The rate of oxidation is susceptible to both polar and steric effects of the substituents. A suitable mechanism has been proposed.