CAS 1019-57-4: Ethanal-2,4-dinitrophenylhydrazone

Description: Ethanal-2,4-dinitrophenylhydrazone, with the CAS number 1019-57-4, is a chemical compound formed from the reaction of ethanal (acetaldehyde) with 2,4-dinitrophenylhydrazine. This compound is characterized by its bright yellow crystalline appearance, which is a result of the presence of the dinitrophenyl group. It is commonly used in organic chemistry as a derivative for the identification and characterization of aldehydes and ketones through the formation of hydrazones. Ethanal-2,4-dinitrophenylhydrazone is relatively stable under standard conditions but may decompose upon exposure to strong acids or bases. Its melting point and solubility can vary depending on the solvent used, but it is generally soluble in organic solvents such as ethanol and acetone. The compound is also notable for its ability to form a precipitate in the presence of certain reagents, making it useful in analytical chemistry for qualitative analysis. Safety precautions should be taken when handling this compound, as it may pose health risks if inhaled or ingested.

Formula: C₈H₈N₄O₄

InChI: InChI=1S/C8H8N4O4/c1-2-9-10-7-4-3-6(11(13)14)5-8(7)12(15)16/h2-5,10H,1H3

InChI key: InChIKey=ONBOQRNOMHHDFB-UHFFFAOYSA-N

SMILES: O=N(=O)C1=CC=C(NN=CC)C(=C1)N(=O)=O

Synonyms:

• (2E)-1-(2,4-dinitrophenyl)-2-ethylidenehydrazine
• (2Z)-1-(2,4-dinitrophenyl)-2-ethylidenehydrazine
• 1-(2,4-Dinitrophenyl)-2-Ethylidenehydrazine
• Acetaldehyde 2,4-dinitrophenyl hydrazone
• Acetaldehyde 2,4Dinitrophenylhydrazone
• Acetaldehyde, 2-(2,4-dinitrophenyl)hydrazone
• Ethanal-2,4-dinitrophenylhydrazone
• NSC 403216

HJ 683-2014 Carbonyl DNPH as Aldehyde/Ketone Mixture 495 100 µg/mL in Acetonitrile

CAS: 1019-57-41081-15-8 1157-84-2 1527-96-4 1527-97-5 1527-98-6 1567-89-1 2057-84-3 2880-05-9 5077-73-6 725-00-8 888-54-0 958-60-1

• Color and Shape: Mixture

Aldehyde/Ketone-DNPH Mixture 577 500 µg/mL in Acetonitrile

CAS: 1019-57-41081-15-8 1527-96-4 1527-98-6 1567-89-1 725-00-8 888-54-0 958-60-1

• Color and Shape: Mixture

Derivatized Carbonyl Compounds 879 Mixture 100 µg/mL in Acetonitrile

CAS: 1019-57-41081-15-8 1157-84-2 152477-96-8 1527-95-3 1527-96-4 1527-97-5 1527-98-6 1567-89-1 1589-62-4 1726-77-8 1773-44-0 2057-84-3 2074-05-7 2256-01-1 2348-19-8 2571-00-8 2880-05-9 725-00-8 888-54-0

• Formula: C₁₅H₁₄N₄O₄
• Color and Shape: Mixture
• Molecular weight: 314.30

Acetaldehyde-2,4-dinitrophenylhydrazone 100 µg/mL in Acetonitrile

CAS: 1019-57-4

• Formula: C₈H₈N₄O₄
• Color and Shape: Single Solution
• Molecular weight: 224.17

DNPH mixture for HJ 400-2007 100 µg/mL in Acetonitrile

CAS: 1019-57-41081-15-8 1157-84-2 152477-96-8 1527-96-4 1527-97-5 1527-98-6 1567-89-1 1773-44-0 2057-84-3 2256-01-1 2571-00-8 2880-05-9 725-00-8 888-54-0

• Color and Shape: Mixture

Aldehyde/Ketone-DNPH Mixture 542 15 µg/mL in Acetonitrile

CAS: 1019-57-41081-15-8 1567-89-1 888-54-0

• Color and Shape: Mixture

(E)-1-(2,4-dinitrophenyl)-2-ethyldiazene

CAS: 1019-57-4

• Purity: 98%
• Molecular weight: 224.17599487304688

Acetaldehyde-13C2 2,4-Dinitrophenylhydrazone

CAS: 1019-57-4

Applications Acetaldehyde-13C2 2,4-Dinitrophenylhydrazone is the C13 labelled analogue of Acetaldehyde 2,4-Dinitrophenylhydrazone, which is a dinitrophenylhydrazone …

• Formula: C₆₁₃C₂H₈N₄O₄
• Color and Shape: Neat
• Molecular weight: 226.16

Acetaldehyde 2,4-Dinitrophenylhydrazone

CAS: 1019-57-4

Stability Hygroscopic Applications Acetaldehyde 2,4-Dinitrophenylhydrazone is a dinitrophenylhydrazone (DNPH) derivative of an aliphatic alldehyde found …

• Formula: C₈H₈N₄O₄
• Color and Shape: Yellow
• Molecular weight: 224.17

Acetaldehyde-2,4-dinitrophenylhydrazone

CAS: 1019-57-4

Acetaldehyde-2,4-dinitrophenylhydrazone is a thermodynamic term that describes the change in enthalpy (ΔH) and entropy (ΔS) …

• Formula: C₈H₈N₄O₄
• Purity: Min. 95%
• Molecular weight: 224.17 g/mol