5405-53-8

Basic information

• Product Name: 2,7-Dinitrofluorene
• Synonyms: 2,7-DINITROFLUORENE;2,7-Dinitrofluorene,98%;2,7-DINITROFLUORENE 95+%;2,7-Dinitrofluorene,97%;2,7-Dinitroflu;2,7-Dinitro-9H-fluorene;2,7-dinitro-fluoren;9H-Fluorene, 2,7-dinitro-
• CAS NO: 5405-53-8
• Molecular Formula: C₁₃H₈N₂O₄
• Molecular Weight: 256.21
• EINECS: 226-457-8
• Product Categories: Fluorene Derivatives;Fluorenes, Flurenones;Fluorenes;Fluorenes & Fluorenones;Nitro Compounds;Nitrogen Compounds;Organic Building Blocks
• Mol File: 5405-53-8.mol
• Article Data: 2

Chemical Properties

• Melting Point: 330-334°C
• Boiling Point: 399.45°C (rough estimate)
• Flash Point: 229.9 °C
• Appearance: light yellow powder
• Density: 1.3298 (rough estimate)
• Vapor Pressure: 6.45E-08mmHg at 25°C
• Refractive Index: 1.5300 (estimate)
• Storage Temp.: Refrigerator
• Solubility: DMSO (Slightly)
• BRN: 2057852
• CAS DataBase Reference: 2,7-Dinitrofluorene(CAS DataBase Reference)
• NIST Chemistry Reference: 2,7-Dinitrofluorene(5405-53-8)
• EPA Substance Registry System: 2,7-Dinitrofluorene(5405-53-8)

Safety Data

• Hazard Codes: Xn
• Statements: 40
• Safety Statements: 7-22-36/37/39-45-36
• WGK Germany: 3
• RTECS: LL7175000
• Hazardous Substances Data: 5405-53-8(Hazardous Substances Data)

Usage

Chemical Properties

yellow powder

Uses

2,7-Dinitrofluorene was used as a reagent in the synthesis of benzidine and diaminofluorene prolinamide derivatives which are potent hepatitis C virus NS5A inhibitors. Also used in the synthesis of symmetric anionic polymethine dyes derived from fluorene.

InChI:InChI=1/C13H8N2O4/c16-14(17)10-1-3-12-8(6-10)5-9-7-11(15(18)19)2-4-13(9)12/h1-4,6-7H,5H2

Upstream product

• 607-57-8 2-nitro-9H-fluorene 
• 64-19-7 acetic acid 
• 7697-37-2 nitric acid 
• 86-73-7 9H-fluorene 

Downstream Products

• 65550-84-7 9-(4-chloro-benzylidene)-2,7-dinitro-fluorene 
• 2915-84-6 2,7-diaminofluoren-9-one 
• 13548-69-1 2,7-diamino-fluorene dihydrochloride 
• 6680-37-1 2,7-Bis-benzamino-9-(4-methyl-benzyliden)-fluoren 
• 6680-38-2 2,7-Diamino-9-(4-methyl-benzyliden)-fluoren 
• 6633-40-5 7-hydroxy-2-nitrofluorene 
• 304-28-9 N,N'-(9H-fluorene-2,7-diyl)diacetamide 
• 6957-50-2 2-Acetamino-7-amino-fluoren 
• 72570-99-1 2-acetylamino-7-nitrofluorene 

Relevant articles and documents

Dispersant for wax crystals and asphaltene in high-wax-content heavy oil, and preparation method thereof

The invention relates to a small-molecule compound which can assist in the dispersion of wax crystals and asphalt and is applicable to heavy oil recovery, specifically to a dispersant for wax crystals and asphaltene in high-wax-content heavy oil, and a preparation method thereof. The dispersant is prepared by reacting fluorene with nitric acid to produce nitrofluorene, then subjecting nitrofluorene and n-alkyl bromide to a nucleophilic reaction to prepare an intermediate, and finally reacting the intermediate with hydrazine hydrate. The dispersant for wax crystals and asphaltene in high-wax-content heavy oil has the advantages that raw materials are widely available, synthesis process is simple, clean and pollution-free, and the produced dispersant is easy to obtain, transport and store; the dispersant has good temperature resistance and high yield, wherein the dispersant can resist a temperature of 250 DEG C or above, and the yield of the dispersant is greater than 95%; and when the usage amount of the dispersant is 200 ppm, the freezing point of high-wax-content heavy oil can be reduced by 10 DEG G or more and the viscosity of high-wax-content heavy oil can be reduced by 90% or more. Thus, the dispersant of the invention can be widely applied to on-site freezing point reduction and viscosity reduction tests of high-wax-content heavy oil.