93-46-9

Basic information

• Product Name: N,N'-Di-2-naphthyl-p-phenylenediamine
• Synonyms: DBNPD;DI-B-NAPHTHYL-P-PHENYLENE DIAMINE;di-beta-naphthyl-p-phenylenediamine;N,N'-Bis(2-naphthyl)-p-phenylenediamine;N,N'-DI-2-NAPHTHYL-1,4-PHENYLENEDIAMINE;N,N'-DI-2-NAPHTHYL-P-PHENYLENEDIAMINE;N,N-DI-2-NAPHTHYL-P-PHENYLENEDIAMINE;N,N'-DI-BETA-NAPHTHYL-P-PHENYLENEDIAMINE
• CAS NO: 93-46-9
• Molecular Formula: C₂₆H₂₀N₂
• Molecular Weight: 360.45
• EINECS: 202-249-2
• Product Categories: Industrial/Fine Chemicals;Organics;Diphenylamines (for High-Performance Polymer Research);Functional Materials;Reagent for High-Performance Polymer Research
• Mol File: 93-46-9.mol
• Article Data: 7

Chemical Properties

• Melting Point: 225-229°C
• Boiling Point: 232-134°C (dec.)
• Flash Point: 399 °C
• Appearance: Gray powder
• Density: 1.25
• Vapor Pressure: 9.87E-15mmHg at 25°C
• Refractive Index: 1.7620 (estimate)
• Storage Temp.: Keep in dark place,Sealed in dry,Room Temperature
• Solubility: Chloroform (Slightly, Heated, Sonicated), DMSO (Slightly)
• PKA: 3.10±0.30(Predicted)
• Water Solubility: <0.1 g/100 mL at 19℃
• CAS DataBase Reference: N,N'-Di-2-naphthyl-p-phenylenediamine(CAS DataBase Reference)
• NIST Chemistry Reference: N,N'-Di-2-naphthyl-p-phenylenediamine(93-46-9)
• EPA Substance Registry System: N,N'-Di-2-naphthyl-p-phenylenediamine(93-46-9)

Safety Data

• Statements: 20/21/22-36/37/38
• Safety Statements: 22-36/37/39
• RTECS: ST2100000
• Hazardous Substances Data: 93-46-9(Hazardous Substances Data)

Usage

Uses

Different sources of media describe the Uses of 93-46-9 differently. You can refer to the following data:
1. N,N-Di-β-naphtyl-4-phenylenediamine is used as antioxidant; stabilizer; polymerization inhibitor; intermediate in organic synthesis; antidegradant for latex, nitrile rubber, styrene-butadiene, and nitrile-butadiene rubber.
2. ASM-DNT can be used as a rubber door panel part.

General Description

Gray powder.

Air & Water Reactions

Insoluble in water.

Reactivity Profile

N,N'-Di-2-naphthyl-p-phenylenediamine neutralizes acids in exothermic reactions to form salts plus water. May be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen may be generated in combination with strong reducing agents, such as hydrides.

Fire Hazard

Flash point data for N,N'-Di-2-naphthyl-p-phenylenediamine are not available; however, N,N'-Di-2-naphthyl-p-phenylenediamine is probably combustible.

Safety Profile

A human skin irritant. An experimental skin and eye irritant. Mutation data reported. Questionable carcinogen with experimental tumorigenic data. When heated to decomposition it emits toxic fumes of NOx.

InChI:InChI=1/C26H20N2/c1-3-7-21-17-25(11-9-19(21)5-1)27-23-13-15-24(16-14-23)28-26-12-10-20-6-2-4-8-22(20)18-26/h1-18,27-28H

Upstream product

• 106-50-3 1,4-phenylenediamine 
• 135-19-3 β-naphthol 

Downstream Products

• 886446-76-0 N,N'-di-2-naphthyl-N-phenyl-1,4-phenylenediamine 
• 200192-05-8 N,N'-bis(β-naphthyl)-N,N'-bis(4-nitrobenzene)p-phenylenediamine 
• 200192-07-0 N,N'-bis(4-aminophenyl)-N,N'-bis(naphthalen-2-yl)-1,4-phenylenediamine 
• 4377-73-5 2,5-cyclohexadiene-1,4-diimine 
• 4972-13-8 4-benzoyloxy-1-hydroxy-2,2,6,6-tetramethylpiperidine 
• 114687-22-8 C₂₆H₁₉N₂ 

Relevant articles and documents

METHOD FOR PRODUCING PHENYLENE DIAMINE DERIVATIVE

PROBLEM TO BE SOLVED: To provide a method for producing a phenylene diamine derivative that produces a phenylene diamine derivative having excellent economical efficiency and safety, and polymerization inhibitory performance. SOLUTION: A method for producing a phenylene diamine derivative is to produce a reaction mixture containing a phenylene diamine derivative by causing a reaction to occur between o-phenylenediamine, m-phenylenediamine, or p-phenylenediamine and a phenol. In the reaction, solid iodine as a catalyst is changed into a solution state through a solvent, and the solution is dropped as a catalyst onto a reaction system. SELECTED DRAWING: Figure 2 COPYRIGHT: (C)2021,JPOandINPIT

Corrosion inhibiting composition

A composition, in contact with a corrodable metal surface, which composition comprises: (a) an aqueous-based or oil-based system; and (b) as inhibitor for protecting the metal surface against corrosion, at least one compound having the formula I: STR1 as well as salts or partial esters thereof wherein: n is 0 or an integer ranging from 1 to 20, R is a straight or branched chain C4 -C30 alkyl group, optionally interrupted by one, two or three oxygen atoms or substituted by one, two or three hydroxy groups, a C5 -C12 cycloalkyl group, a C6 -C10 aryl group optionally substituted by one, two or three C1 -C12 alkyl groups, or a C7 -C13 aralkyl group which is optionally substituted by a hydroxyl group; R1 is H or a straight- or branched chain C1 -C4 alkyl group; R2 is H, a straight or branched chain C1 -C4 alkyl group or CO2 H; R3 is H, a straight or branched chain C1 -C4 alkyl group, --CH2 CO2 H or --CH2 CH2 CO2 H; R4 is H, a straight or branched chain C1 -C4 alkyl group or CO2 H; R5 is H, a straight or branched chain C1 -C4 alkyl group, CH2 CO2 H or CH2 CH2 CO2 H; provided that at least one group R4 must be CO2 H, with the provisio, that compositions comprising an oil-based system and a compound having the formula STR2 wherein R, R1 and R2 are hydrogen or alkyl radicals, having a total from 10 to 38 C-atoms, are excluded.

Method for the production of vinyl norbornene

A method for producing vinyl norbornene at a high yield preventing the formation of Diels-Alder reaction by-products which is characterized in that cyclopentadiene and butadiene are reacted in the presence of p-phenylenediamine compounds such as N-isopropyl-N'-phenyl-p-phenylenediamine, N,N'-diphenyl-p-phenylenediamine and the like.