N,N'-Di-2-naphthyl-p-phenylenediamine

CAS NO.：93-46-9
Empirical Formula: C26H20N2
Molecular Weight: 360.45
MDL number: MFCD00053487
EINECS: 202-249-2
SAFETY DATA SHEET (SDS)
Update Date: 2026-06-05 18:44:30

What is N,N'-Di-2-naphthyl-p-phenylenediamine?

The Uses of N,N'-Di-2-naphthyl-p-phenylenediamine

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.

The Uses of N,N'-Di-2-naphthyl-p-phenylenediamine

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.

Properties of N,N'-Di-2-naphthyl-p-phenylenediamine

Melting point:	225-229°C
Boiling point:	232-134°C (dec.)
Density	1.25
refractive index	1.7620 (estimate)
storage temp.	Keep in dark place,Sealed in dry,Room Temperature
solubility	Chloroform (Slightly, Heated, Sonicated), DMSO (Slightly)
form	Solid
pka	3.10±0.30(Predicted)
color	Pale Grey to Light Grey
Water Solubility	<0.1 g/100 mL at 19 ºC
CAS DataBase Reference	93-46-9(CAS DataBase Reference)
NIST Chemistry Reference	N,n'-di-beta-naphthyl-p-phenylenediamine(93-46-9)
EPA Substance Registry System	N,N'-Di-2-naphthyl-p-phenylenediamine (93-46-9)

Safety information for N,N'-Di-2-naphthyl-p-phenylenediamine

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07
GHS Hazard Statements	H317:Sensitisation, Skin H320:Serious eye damage/eye irritation
Precautionary Statement Codes	P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P272:Contaminated work clothing should not be allowed out of the workplace. P280:Wear protective gloves/protective clothing/eye protection/face protection. P501:Dispose of contents/container to..…