5718-26-3

Basic information

• Product Name: methyl 2-[(1,5-dihydro-3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-ylidene)ethylidene]-1,3,3-trimethylindoline-5-carboxylate
• Synonyms: methyl 2-[(1,5-dihydro-3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-ylidene)ethylidene]-1,3,3-trimethylindoline-5-carboxylate;1H-Indole-5-carboxylic acid, 2-(1,5-dihydro-3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-ylidene)ethylidene-2,3-dihydro-1,3,3-trimethyl-, methyl ester;2-[(1,5-dihydro-3-methyl-5-oxo-1-phenyl-4h-pyrazol-4-ylidene)ethylidene]-2,3-dihydro-1,3,3-trimethyl-1h-indole-5-carboxylic aci methyl ester;Methyl 2-[(1,5-Dihydro-3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-ylidene)-ethylidene]-1,3,3-trimethylindoline-5-carboxylate;Bayer Macrolex Orange R;2-[2-(1,5-Dihydro-3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-ylidene)ethylidene]-2,3-dihydro-1,3,3-trimethyl-1H-indole-5-carboxylic acid methyl ester;2-[(1,5-Dihydro-3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-ylidene)ethylidene]-2,3-dihydro-1,3,3-trimethyl-1H-indole-5-carboxylic acid methyl ester
• CAS NO: 5718-26-3
• Molecular Formula: C₂₅H₂₅N₃O₃
• Molecular Weight: 415.4843
• EINECS: 227-217-5
• Mol File: 5718-26-3.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 511.5 °C at 760 mmHg
• Flash Point: 263.1 °C
• Appearance: /
• Density: 1.628 g/cm³
• Vapor Pressure: 1.71E-11mmHg at 25°C
• Refractive Index: 1.611
• PKA: -0.36±0.40(Predicted)
• Water Solubility: 440μg/L at 20℃
• CAS DataBase Reference: methyl 2-[(1,5-dihydro-3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-ylidene)ethylidene]-1,3,3-trimethylindoline-5-carboxylate(CAS DataBase Reference)
• NIST Chemistry Reference: methyl 2-[(1,5-dihydro-3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-ylidene)ethylidene]-1,3,3-trimethylindoline-5-carboxylate(5718-26-3)
• EPA Substance Registry System: methyl 2-[(1,5-dihydro-3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-ylidene)ethylidene]-1,3,3-trimethylindoline-5-carboxylate(5718-26-3)

Safety Data

• Hazardous Substances Data: 5718-26-3(Hazardous Substances Data)

Usage

Flammability and Explosibility

Notclassified

InChI:InChI=1/C25H25N3O3/c1-16-19(23(29)28(26-16)18-9-7-6-8-10-18)12-14-22-25(2,3)20-13-11-17(24(30)31-5)15-21(20)27(22)4/h6-15H,1-5H3/b19-12-,22-14+

Upstream product

• 563-80-4 3-methyl-butan-2-one 
• 17364-41-9 4-formyl-3-methyl-1-phenylpyrazol-5-one 
• 6872-10-2 1,3,3-trimethyl-2-methylene-2,3-dihydro-indole-5-carboxylic acid methyl ester 

Relevant articles and documents

Method for preparing indoline polymethin dye via one-pot method

The invention discloses a method for preparing an indoline polymethin dye via a one-pot method. The method comprises the following steps of: carrying out condensation and ring closing on phenylhydrazine or para-substituted phenylhydrazine hydrochloride and methyl isopropyl ketone in an alcohol solvent under the catalysis of sulfuric acid so as to generate 2,3,3-trimethylindole or a derivative thereof, adding alkali to carry out neutralization, and carrying out filtration to remove salt; adding an appropriate acid-binding agent in the filtrate, dropwise adding dimethyl sulfate to generate 1,3,3-trimethyl-2--methylene indoline or a derivative thereof; and directly adding 1-phenyl-3-methyl-4-formyl-5-pyrazolone, and carrying out acid catalysis and condensation to generate a target dye. The method has the advantages of being easy to operate, high in yield, low in cost and less in wastewater.