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Diphenylamine122-39-4

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$33-34/MT FOB

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CAS No.:

122-39-4

Grade:

Pharmaceutical Grade

Content:

99.5%

Port:

上海

Brand:

OORENT

Packaging:

Vial/Bottle/Bag/Carton

Price valid (until):

2026-07-16

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Qingdao Orient Chemical Co.,LTD

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Trader

Location:

China

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pharmaceutical intermediates,peptides,electronic chemicals

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Product Description
Seller Information
Inquiry History

Description

Product Detail

Diphenylamine Basic information

Product Name:	Diphenylamine
Synonyms:	Diphenylamine, synthesis grade;Diphenylamine, redox indicator, reagent grade, ACS;Diphenylamine 5g [122-39-4];Diphenylamine 1g [122-39-4];Diphenylamine p.a.;DIPHENYLAMINE REAGENT (ACS) N-Phenylbenzeneamine;Diphenylamine (Oxidation-reduction indicator,white);DiphenylaMine, AR,99.0%
CAS:	122-39-4
MF:	C12H11N
MW:	169.22
EINECS:	204-539-4
Product Categories:	ACS Grade;Bioactive Small Molecules;Cell Biology;DIG-DY;Essential Chemicals;Inorganic Salts;ACS GradeNitrogen Compounds;C11 to C38;Bridged diphenylsPesticides&Metabolites;Alpha sort;DAlphabetic;Research Essentials;Solutions and Reagents;Thiophenes;Intermediates of Dyes and Pigments;Organics;76/768/EEC Annex VIII;Bridged diphenylsAlphabetic;DIO - DIZCosmetics;Other AdditivesEuropean Community: ISO and DIN;Proposed Banning;Allergens;D;Fungicides;Pesticides;Amines;Aromatics;Essential Chemicals;Routine Reagents;Nitrogen Compounds;Derivatization Reagents TLC;Nitrogen-containing compoundsTitration;Redox IndicatorsDerivatization Reagents TLC;TLC Reagents, D-F;Indicators;TLC Visualization Reagents (alphabetic sort);TLC Visualization Reagents (by application);Chemical Class;122-39-4;bc0001;K00001
Mol File:	122-39-4.mol

Diphenylamine Chemical Properties

Melting point	52 °C
Boiling point	302 °C(lit.)
bulk density	610kg/m3
density	1.16
vapor density	5.82 (vs air)
vapor pressure	1 mm Hg ( 108 °C)
refractive index	1.5785 (estimate)
Fp	307 °F
storage temp.	Store below +30°C.
solubility	alcohol: passes test
pka	0.79(at 25℃)
form	crystalline
color	tan
Odor	Floral odor
Water Solubility	Slightly soluble. 0.03 g/100 mL
Sensitive	Air & Light Sensitive
Merck	14,3317
BRN	508755
Henry's Law Constant	3.7×10⁰ mol/(m³Pa) at 25℃, Duchowicz et al. (2020)
Exposure limits	PC-TWA:10 mg/m3
Dielectric constant	3.3（11℃）
Stability:	Stable; may discolour on exposure to light. Incompatible with strong acids, strong oxidizing agents.
InChI	1S/C12H11N/c1-3-7-11(8-4-1)13-12-9-5-2-6-10-12/h1-10,13H
InChIKey	DMBHHRLKUKUOEG-UHFFFAOYSA-N
SMILES	N(c1ccccc1)c2ccccc2
LogP	3.82 at 20.2℃
CAS DataBase Reference	122-39-4(CAS DataBase Reference)
NIST Chemistry Reference	Diphenylamine(122-39-4)
EPA Substance Registry System	Diphenylamine (122-39-4)

Safety Information

Hazard Codes	T,N,F
Risk Statements	23/24/25-33-50/53-52/53-39/23/24/25-11-51/53
Safety Statements	28-36/37-45-60-61-28A-16-7
RIDADR	UN 3077 9/PG 3
OEB	B
OEL	TWA: 10 mg/m3
WGK Germany	3
RTECS	JJ7800000
F	8-10-23
Autoignition Temperature	630 °C DIN 51794
TSCA	TSCA listed
HS Code	2921 44 00
HazardClass	6.1
PackingGroup	III
Storage Class	6.1C - Combustible acute toxic Cat.3 toxic compounds or compounds which causing chronic effects
Hazard Classifications	Acute Tox. 3 Dermal Acute Tox. 3 Inhalation Acute Tox. 3 Oral Aquatic Acute 1 Aquatic Chronic 1 STOT RE 2
Hazardous Substances Data	122-39-4(Hazardous Substances Data)
Toxicity	LD50 orally in Rabbit: 1120 mg/kg LD50 dermal Rabbit > 5000 mg/kg

MSDS Information

Provider	Language
SigmaAldrich	English
ACROS	English
ALFA	English

Diphenylamine Usage And Synthesis

Description	Solutions of diphenylamine are used to treat apples a few days before harvest. Residue on apples’ surfaces of 10 ppm is permitted by regulation in Australia, Canada, and the United States.
Chemical Properties	white crystals or powder
Chemical Properties	Diphenylamine is a colorless monoclinic leafl et substance. It is used in the manufacture of a variety of substances, i.e., dyestuffs and their intermediates, pesticides, antihelmintic drugs, and as reagents in analytical chemistry laboratories.
Uses	Diphenylamine is an aromatic amine that was shown to exhibit antioxidant activities and is now used as an anti-scald agent. It is also used in the manufacture of a variety of substances, for instance, dye stuffs and their intermediates, pesticides, anthelmintic drugs, and as reagents in analytical chemistry laboratories.
Uses	Diphenylamine is used in the manufactureof dyes, as a stabilizer for nitrocelluloseexplosives, and as an analytical reagent forcolorimetric tests for nitrate and chlorate. Other applications of this compoundinclude preventing postharvest deteriorationof apple and peer crops; as an antioxidant inrubber and elastomer industry and in the per fumery. As a stabilizer for propellants andexplosives, it binds their degradation prod ucts thus prolonging the storage time of suchpropellants.
Uses	Diphenylamine is used post-harvest to prevent superficial scald in apples in cold store.
Definition	ChEBI: An aromatic amine containing two phenyl substituents. It has been used as a fungicide for the treatment of superficial scald in apples and pears, but is no longer approved for this purpose within the European Union.
Definition	diphenylamine: A colourless crystallinearomatic compound,(C₆H₅)₂NH; m.p. 54°C. It is made byheating phenylamine (aniline) withphenylamine hydrochloride. It is asecondary amine and is both slightlyacidic (forming an N-potassium salt)and slightly basic (forming salts withmineral acids). Its derivatives are employedas stabilizers for syntheticrubber and rocket fuels.
Synthesis Reference(s)	The Journal of Organic Chemistry, 58, p. 6900, 1993 DOI: 10.1021/jo00076a063
General Description	Light tan to brown solid with a pleasant odor. Sinks in water.
Air & Water Reactions	Dust may be explosive if mixed with air in critical proportions and in the presence of a source of ignition [USCG, 1999]. Insoluble in water.
Reactivity Profile	Diphenylamine discolors in light. Diphenylamine can react violently with hexachloromelamine and trichloromelamine. Diphenylamine is incompatible with strong oxidizing agents and strong acids. Diphenylamine is also incompatible with iron and silver salts. Diphenylamine reacts with nitrogen oxides.
Health Hazard	Inhalation may irritate mucous membranes. Overexposure, including ingestion of solid or skin contact, may cause fast pulse, hypertension, and bladder trouble. Contact with dust irritates eyes.
Health Hazard	Diphenylamine is much less toxic than aniline. The acute oral toxicity is low. A doseof 3000 mg/kg was lethal to rats. At a concentration of >500 ppm, a diet fed to ratsfor over 7 months resulted in renal cysts inanimals. Its absorption through the skin andthe respiratory system is lower than that ofaniline. Exposure to its dusts caused changesin liver, spleen, and kidney in test animals.Industrial exposure to diphenylamine hascaused tachycardia, hypertension, eczema,and bladder symptoms in workers (Fairhall1957). Carcinogenicity of this compound isunknown. It showed an adverse reproduc tive effect in animals, causing developmentalabnormalities in urogenital system in pregnant rats. LD50 value, oral guinea pig: 300 mg/kg.
Health Hazard	Diphenylamine is highly toxic and is rapidly absorbed by the skin and through inhalation. It has caused anorexia, hypertension, eczema, and bladder symptoms. Experimental animals exposed to diphenylamine demonstrated cystic lesions but failed to demonstrate cancerous growth. Inhalation of diphenylamine dust may cause systemic poisoning. The symptoms of toxicity include, but are not limited to, anoxia, headache, fatigue, anorexia, cyanosis, vomiting, diarrhea, emaciation, hypothermia, bladder irritation, kidney, heart, and liver damage.
Fire Hazard	Noncombustible solid; autoignition temperature 634°C (1173°F); low reactivity.
Flammability and Explosibility	Non flammable
Agricultural Uses	Insecticide, Fungicide, Herbicide, Plant growth regulator: Topically in anti-screwworm mixtures, foliar application in a modified growth chamber to decrease ozone injury to leaves of apple, bean, muskmelon, petunia, and tobacco plants. To control weather fleck in tobacco and inhibit algae formation. To prolong the fresh appearance of snapdragons. Protect rice from the toxic effects of thiolcarbamate herbicides [83] . Not currently approved for use in EU countries (resubmitted) . Registered for use in the U.S. and other countries.
Trade name	NOSCALD DPA 31; NOSCALD DPA 283; SCALDIP; Z-876
Safety Profile	Poison by ingestion. Experimental teratogenic effects. Action similar to anhne but less severe. Combustible when exposed to heat or flame. Can react violently with hexachloromelamine or trichloromelamine. Can react with oxilzing materials. To fight fire, use CO2, dry chemical. When heated to decomposition it emits highly toxic fumes of NOx,. See also ANILINE, AMINES, and AROMATIC AMINES.
Potential Exposure	AgriculturalChemical; Mutagen; Reproductive Effector. DPA is used asa stabilizer for plastics including solid rocket propellants;antioxidant for polymers, greases, and industrial oils; in themanufacture of pharmaceuticals; pesticides, explosives, anddyes.
First aid	If this chemical gets into the eyes, remove anycontact lenses at once and irrigate immediately for at least15 min, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts theskin, remove contaminated clothing and wash immediatelywith soap and water. Seek medical attention immediately. Ifthis chemical has been inhaled, remove from exposure,begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR ifheart action has stopped. Transfer promptly to a medicalfacility. When this chemical has been swallowed, get medical attention. Give large quantities of water and inducevomiting. Do not make an unconscious person vomit.Medical observation is recommended.
Environmental Fate	Diphenylamine is present in waste water from industrial processes. Diphenylamine has been detected in milk of animals (cow, sheep, goat, water buffalo) raised in Italy and France. Pseudokirchneriella subcapitata (Algae) growth was inhibited with a dose of 0.30 mg l^-1. Aquatic invertebrates Daphnia magna showed an acute 48 h EC50 dose of 1.2 mg l^-1.
Metabolic pathway	The major metabolite of diphenylamine (DPA) identified in stored apples is a glucose conjugate of 4-hydroxydiphenylamine, and additional metabolites, characterized as glycosyl conjugates of 2-hydroxy- DPA, 3-hydroxy-DPA, 4-hydroxy-DPA, or dihydroxy- DPA, are also detected along with their intact (i.e. non-conjugated) forms in apple pulp.
storage	Diphenylamine should be protected from physical damage. Storage of diphenylamine outside or a detached area is preferred. Inside storage should be in a standard flammable liquids storage room or cabinet. Diphenylamine should be kept separately from oxidizing materials and incompatible chemical substances. Storage and work areas should be no smoking areas. Diphenylamine should be kept protected from light.
Shipping	Toxic solids, flammable, organic, n.o.s. requiresa shipping label of “POISONOUS/TOXIC MATERIALS.”It falls into Hazard Class 6.1.
Purification Methods	Crystallise diphenylamine from pet ether, MeOH, or EtOH/water. Dry it under vacuum. [Beilstein 12 H 174, 12 IV 271.]
Degradation	Diphenylamine is an anti-oxidant and therefore reacts with oxygen under conditions of use. It darkens on exposure to sunlight. Aqueous photolysis is pH and oxygen dependant (Lopez et al., 1980). It is converted into carbazole (2) and hydrogen peroxide in the presence of dissolved oxygen. In degassed solution it is converted into carbazole (2) and tetrahydrocarbazole (3) (see Scheme 1).
Incompatibilities	Dust may form an explosive mixturewith air. Incompatible with strong acids, strong oxidizers,aldehydes, organic anhydrides, isocyanates, hexachloromelamine, trichloromelamine. Reacts with nitrogen oxidesforming n-nitrosodiphenylamine and heat-, friction-, andshock-sensitive nitro products
Precautions	Students and occupational workers should be careful during use and handling of diphenylamine. Workers should wear impervious protective clothing, including boots, gloves, a laboratory coat, apron or coveralls, as appropriate, to prevent skin contact. Finely dispersed particles of diphenylamine form explosive mixtures in air. Diphenylamine is very harmful on exposures by swallowing, inhalation, and/or skin absorption. Diphenylamine causes irritation to the skin, eyes, and respiratory tract, and causes blood vascular changes leading to methemoglobinemia.

Diphenylamine Preparation Products And Raw materials

Raw materials

Ethanol-->Aniline

Preparation Products

β-Alanine-->2,2-diphenyl-1-picrylhydrazyl-->photosensitive polyimide photoresist (PSPI)-->N,N'-Di-1-naphthyl-N,N'-diphenylbenzidine (NPB)-->Sulphur Dark Blue 3R-->alpha-Amylcinnamaldehyde-->lithium base grease-->9-METHYLACRIDINE-->N,N'-Bis(3-methylphenyl)-N,N'-bis(phenyl)benzidine-->Phenothiazine-->Molybdenum disulfide lithium-based grease-->3-Aminopropionitrile-->2-Amino-5-nitrobenzophenone-->Sulphur Blue 7-->Basic Blue 11-->N,N,N',N'-Tetraphenylbenzidine-->N,N'-Diphenylbenzidine-->BENZP-DINITRIDE-THIO-KETONE-->Direct Blend Blue-->4-Diazodiphenylamine sulfate-->Nordazepam-->Acid Brown 354-->Direct Black 168-->9,9-dimethylcarbazine-->TAMPRAMINE-->4-NITROSODIPHENYLAMINE-->ERIO GREEN B-->Sodium diphenylamine-4-sulfonate-->4,4`-di(a-methylbenzyl)diphenylamine-->N-Nitrosodiphenylamine-->METANIL YELLOW-->Acid Yellow 199-->5-[[4-(aminosulphonyl)-2-nitrophenyl]amino]-2-[[4-[[4-(aminosulphonyl)-2-nitrophenyl]amino]phenyl]amino]benzenesulphonic acid-->Direct Blending Navy Blue D-R-->DIRECT BLACK 22-->Bis[4-(2-phenyl-2-propyl)phenyl]amine

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Basic Info

Product Name:

Diphenylamine

Other Name:

Benzenamine,N-phenyl-;Diphenylamine;N-Phenylbenzenamine;Anilinobenzene;DFA;DPA;Benzene,(phenylamino)-;N,N-Diphenylamine;N-Phenylaniline;DBA;No-Scald;Naugalube 428L;NSC 215210;Antioxidant DPA;N-Phenyl-α-aniline;1135443-74-1

CAS No.:

122-39-4

Molecular Formula:

C12H11N

InChIKeys:

InChIKey=DMBHHRLKUKUOEG-UHFFFAOYSA-N

Molecular Weight:

169.22

Exact Mass:

169.22

BRN:

508755

EC Number:

204-539-4

UNII:

9N3CBB0BIQ

ICSC Number:

0466

NSC Number:

215210

UN Number:

2811|3077

DSSTox ID:

DTXSID4021975

Color/Form:

Monoclinic leaflets from dilute alcohol|Crystals|Colorless, tan, amber, or brown crystalline solid.

HScode:

2921440000

Categories:

Organic Reagents

Characteristics

PSA:

12.03000

XLogP3:

2.97

Appearance:

tan crystalline

Density:

1.16 g/cm³

Melting Point:

53-54 °C

Boiling Point:

302 °C

Flash Point:

307 °F

Refractive Index:

1.634

Water Solubility:

H2O: Slightly soluble . 0.03 g/100 mL;alcohol: passes test

Storage Conditions:

0-6°C

Vapor Pressure:

1 mm Hg ( 108 °C)

Vapor Density:

5.82 (vs air)

Toxicity:

Oral-Rat LD50: 1120 mg/kg; Oral-Mouse LD50: 1230 mg/kg

Flammability characteristics:

Combustion produces toxic nitrogen oxide gas

Odor:

Pleasant, floral odor.

OH:

1.94e-10 cm3/molecule*sec

Henrys Law Constant:

Henry's Law constant: 2.69X10-006 atm-cu m/mole @ 25 °C /Estimated/

Dissociation Constants:

pKa = 0.78 @ 24 °C

Experimental Properties:

Forms salts with strong acids|Hydroxyl radical reaction rate constant: 2.00X10-10 cu m/molecule-sec @ 25 °C

Air and Water Reactions:

Dust may be explosive if mixed with air in critical proportions and in the presence of a source of ignition (USCG, 1999). Insoluble in water.

Reactive Group:

Amines, Aromatic

Reactivity Profile:

DIPHENYLAMINE discolors in light. This chemical can react violently with hexachloromelamine and trichloromelamine. It is incompatible with strong oxidizing agents and strong acids. It is also incompatible with iron and silver salts. It reacts with nitrogen oxides. (NTP, 1992)

Autoignition Temperature:

1175 °F (USCG, 1999)|1173 °F (634 °C)|634 °C

Heat of Combustion:

-16.300 BTU/LB= -9.060 CAL/G= -379X10+5 J/KG

Ionization Potential:

7.40 eV

Flammable Limits:

Combustible Solid; explosive if a cloud of dust is exposed to a source of ignition.

Physical Dangers:

Dust explosion possible if in powder or granular form, mixed with air.

See More Diphenylamine Properties 

Hazard Identification

Classification of the substance or mixture

Acute toxicity - Category 3, Oral

Acute toxicity - Category 3, Dermal

Acute toxicity - Category 3, Inhalation

Specific target organ toxicity â repeated exposure, Category 2

Hazardous to the aquatic environment, short-term (Acute) - Category Acute 1

Hazardous to the aquatic environment, long-term (Chronic) - Category Chronic 1

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)
Signal word	Danger
Hazard statement(s)	H301 Toxic if swallowed H311 Toxic in contact with skin H331 Toxic if inhaled H373 May cause damage to organs through prolonged or repeated exposure H410 Very toxic to aquatic life with long lasting effects
Prevention	P264 Wash ... thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/... P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P271 Use only outdoors or in a well-ventilated area. P260 Do not breathe dust/fume/gas/mist/vapours/spray. P273 Avoid release to the environment.
Response	P301+P316 IF SWALLOWED: Get emergency medical help immediately. P321 Specific treatment (see ... on this label). P330 Rinse mouth. P302+P352 IF ON SKIN: Wash with plenty of water/... P316 Get emergency medical help immediately. P361+P364 Take off immediately all contaminated clothing and wash it before reuse. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P319 Get medical help if you feel unwell. P391 Collect spillage.
Storage	P405 Store locked up. P403+P233 Store in a well-ventilated place. Keep container tightly closed.
Disposal	P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.

Other hazards which do not result in classification

no data available

Handling and Storage

Precautions for safe handling

NO open flames. Closed system, dust explosion-proof electrical equipment and lighting. Prevent deposition of dust. Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

Conditions for safe storage, including any incompatibilities

Provision to contain effluent from fire extinguishing. Separated from strong acids and oxidants. Store in an area without drain or sewer access.In general, materials which are toxic as stored or which can decompose into toxic components...should be stored in a cool, well-ventilated place, out of direct rays of the sun, away from areas of high fire hazard, and should be periodically inspected... Incompatible materials should be isolated from each other.

See More Diphenylamine Safety Data Sheet 

Seller Information

Business Type:
Trader

Main Products:
pharmaceutical intermediates,peptides,electronic chemicals

Location:
Room 102, 1st Floor, East Office Building, No. 45 Pengwan Road, Qianwan Bonded Port Area, Qingdao Zone, China (Shandong) Pilot Free Trade Zone

Payment Terms:
100% TT in advance

Average lead Time:
10

Total Annual Revenue:
$10 million-$25 million

Total Employees:
51-100

Year of Establishment:
2024

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We are mainly specilized in supply of pharmaceutical intermediates, electronic chemicals，food additives, and other fine chemical products.
Integrity is the foundation, quality is life. We would like to work together with you to build a greener and brighter future.

Website: orientchem.cc
Email: scarlett@orientchem.cc
WhatsApp: +86 17753254221

Inquiry History

8 Inquiries

Country	Product	Purchase Quantity	Date Posted
Czech	difenylamin	13 TON	Jul 13, 2025
Kazakstan	Diphenylamine	40000 KG	Aug 14, 2025
Egypt	DI-PHENYLAMINE(Technical) MIL-D-98A	20 MT	Mar 10, 2026
Russia	Diphenylamine	70 KG	Feb 14, 2024
Senegal	diphenylamine	1 MT	Jun 8, 2026
Uzbekistan	Diphenylamine solution Certified reference material, 5000 mcg/ml in methanol 40263-U	9 L	Mar 10, 2026
Uzbekistan	Diphenylamine solution	9 L	Mar 13, 2026
Pakistan	Diphenylamine	07 MT	Oct 2, 2023

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Diphenylamine122-39-4

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