4-Hydroxydiphenylamine Chemical Properties

Melting point:

67-73°C

Boiling point:

190°C

Density 

1.0936 (rough estimate)

refractive index 

1.5300 (estimate)

Flash point:

209°C

storage temp. 

Keep in dark place,Inert atmosphere,Room temperature

form 

powder to lump

pka

10.46±0.13(Predicted)

color 

Gray, solid leaflets

BRN 

511942

CAS DataBase Reference

122-37-2(CAS DataBase Reference)

NIST Chemistry Reference

Phenol, 4-(phenylamino)-(122-37-2)

EPA Substance Registry System

Phenol, 4-(phenylamino)- (122-37-2)

Safety Information

Hazard Codes 

Xn

Risk Statements 

37/38-41-22-21

Safety Statements 

26-36/37/39-36/39

RIDADR 

UN2811

RTECS 

SJ6950000

TSCA 

Yes

HazardClass 

6.1

PackingGroup 

III

HS Code 

29222990

Toxicity

LD50 oral in rat: 3300mg/kg

MSDS

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4-Hydroxydiphenylamine Usage And Synthesis

Uses

4-Hydroxydiphenylamine is used as a reactant in the preparation of iron methylisopropylglyoxime dimethylpyridine/dimethylaminopyridine/phenylaminophenol/imidazolidone complexes.

Definition

Gray solid leaflets. Insoluble in water; soluble in alcohol, ether, acetone, chloroform, alkali, and benzene.

Hazard

Irritant.

Safety Profile

Poison by intravenous route.Moderately toxic by ingestion. A severe eye irritant. Seealso AROMATIC AMINES. When heated todecomposition it emits toxic fumes of NOx.

Purification Methods

Crystallise the amine from chlorobenzene/pet ether, pentane (m 72o) or *C6H6/pet ether (m 70o). [Beilstein 13 III 1019, 13 IV 1052.]

4-Hydroxydiphenylamine (122-37-2)Related Product Information

• 2-Aminodiphenylamine
• Phenol Red
• Sodium diphenylamine-4-sulfonate
• 4-Aminodiphenylamine
• Phenothiazine
• 3,3'-DIHYDROXYDIPHENYLAMINE
• Diphenylamine
• 2-Aminophenol
• 4-Aminophenol
• Acetaminophen
• 3-Aminophenol
• Phenol
• 4-(Trifluoromethylthio)phenol
• Diphenylamine,sulfuric acid solution
• Variamine Blue B Base
• 4,4'-DIMETHOXYDIPHENYLAMINE
• N-(4-HYDROXYPHENYL)-2-NAPHTHYLAMINE, 97
• Solvent Violet 13