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N,N-Dimethyl-1,4-phenylenediamine

N,N-Dimethyl-1,4-phenylenediamine structure

CAS No.: 99-98-9

Chemical Name:: N,N-Dimethyl-1,4-phenylenediamine

Synonyms: N1,N1-dimethylbenzene-1,4-diamine;N,N-DIMETHYL-P-PHENYLENEDIAMINE;DMPD;Dimethyl-p-phenylenediamine;n,n-dimethyl-p-phenylenediamin;N,N-Dimethyl-1,4-benzenediamine;1,4-Benzenediamine, N1,N1-dimethyl-;ci76075;-p-phenyL;c.i.76075

CBNumber:: CB9280070

Molecular Formula:: C8H12N2

Molecular Weight:: 136.19

MDL Number:: MFCD00007860

MOL File:: 99-98-9.mol

MSDS File:: SDS

TDS File:: TDS

Last updated:2026-04-10 10:27:33

Product description	Number	Pack Size	Price
N,N-Dimethyl-p-phenylenediamine for spectrophotometric det. of SO42-, S2-, ≥97.0%	07750	25g	$64.7
N,N-Dimethyl-1,4-phenylenediamine >98.0%(GC)(T)	D0779	25g	$125
N,N-Dimethyl-p-phenylenediamine 97%	193992	5g	$58.7
N,N-Dimethyl-p-phenylenediamine 97%	193992	100g	$205
N,N-Dimethyl-p-phenylenediamine 97%	193992	500g	$740
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N,N-Dimethyl-1,4-phenylenediamine Properties

Melting point	34-36 °C(lit.)
Boiling point	262 °C(lit.)
Density	1.09
refractive index	1.5914 (estimate)
Flash point	130 °C
storage temp.	2-8°C
solubility	Chloroform (Slightly), Methanol (Slightly), Water (Slightly)
pka	6+-.0.12(Predicted)
form	crystalline
color	black
Water Solubility	11 g/L (20 ºC)
Sensitive	Light Sensitive
Merck	14,3254
BRN	508105
Henry's Law Constant	3.3×10² mol/(m³Pa) at 25℃, HSDB (2015)
Stability	Stable. Incompatible with acid chlorides, acid anhydrides, strong acids, strong oxidizing agents. Combustible.
Cosmetics Ingredients Functions	HAIR DYEING
InChI	1S/C8H12N2/c1-10(2)8-5-3-7(9)4-6-8/h3-6H,9H2,1-2H3
InChIKey	BZORFPDSXLZWJF-UHFFFAOYSA-N
SMILES	CN(C)c1ccc(N)cc1
CAS DataBase Reference	99-98-9(CAS DataBase Reference)
EWG's Food Scores	1-5
FDA UNII	7GZH2FMK7X
NIST Chemistry Reference	1,4-Benzenediamine, N,N-dimethyl-(99-98-9)
EPA Substance Registry System	N,N-Dimethyl-p-benzenediamine (99-98-9)
UNSPSC Code	41116105
NACRES	NA.21

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS06

Signal word

Danger

Hazard statements

H300+H310-H331

Precautionary statements

P262-P264-P280-P301+P310-P302+P352+P310-P304+P340+P311

PPE

Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges

Hazard Codes

Risk Statements

23/24/25-36/37/38

Safety Statements

28-45-36/37/39-26

RIDADR

UN 2811 6.1/PG 2

WGK Germany

RTECS

ST0874000

8-10-23

Hazard Note

Toxic/Keep Cold

TSCA

TSCA listed

HazardClass

6.1

PackingGroup

HS Code

29215900

Storage Class

6.1A - Combustible acute toxic Cat. 1 and 2
very toxic hazardous materials

Hazard Classifications

Acute Tox. 1 Dermal
Acute Tox. 2 Oral
Acute Tox. 3 Inhalation

Hazardous Substances Data

99-98-9(Hazardous Substances Data)

Limited Quantities

100ml (liquid) or 0.5 Kg (solid)

Excepted Quantities

Max Inner Pack (1g or 1ml) and Max Outer Pack (500g or 500ml)

NFPA 704

	1
4		1

N,N-Dimethyl-1,4-phenylenediamine price More Price(27)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	07750	N,N-Dimethyl-p-phenylenediamine for spectrophotometric det. of SO42-, S2-, ≥97.0%	99-98-9	25g	$64.7	2022-05-15	Buy
TCI Chemical	D0779	N,N-Dimethyl-1,4-phenylenediamine >98.0%(GC)(T)	99-98-9	25g	$125	2026-03-19	Buy
Sigma-Aldrich	193992	N,N-Dimethyl-p-phenylenediamine 97%	99-98-9	5g	$58.7	2026-03-19	Buy
Sigma-Aldrich	193992	N,N-Dimethyl-p-phenylenediamine 97%	99-98-9	100g	$205	2026-03-19	Buy
Sigma-Aldrich	193992	N,N-Dimethyl-p-phenylenediamine 97%	99-98-9	500g	$740	2026-03-19	Buy

Product number	Packaging	Price	Buy
07750	25g	$64.7	Buy
D0779	25g	$125	Buy
193992	5g	$58.7	Buy
193992	100g	$205	Buy
193992	500g	$740	Buy

N,N-Dimethyl-1,4-phenylenediamine Chemical Properties,Uses,Production

Description

Dimethyl-p-phenylenediamine is a colorless toreddish-violet crystalline solid; Molecular weight= 136.23;Boiling point = 262℃; Freezing/Melting point = 41℃;Flash point = 90℃. Insoluble in water

Chemical Properties

grey to black solid

Uses

Base for production of methylene blue, photodeveloper, reagent for detection of hydrogen sulfide, reagent for cellulose, organic synthesis, reagent for certain bacteria.

Uses

N,N-Dimethyl-p-phenylenediamine is a redox indicator. Readily forms stable, red radical cation, involved in a variety of redox reactions.

Uses

N,N-Dimethyl-p-phenylenediamine may be used for the preparation of molecular compounds with tetracyano-p-quinodimethane (TCNQ). Polarized absorption spectra of these molecular compounds were investigated.

Definition

ChEBI: N,N-dimethyl-1,4-phenylenediamine is a substituted aniline and a diamine.

Synthesis Reference(s)

Chemistry Letters, 9, p. 439, 1980
Tetrahedron Letters, 34, p. 2441, 1993 DOI: 10.1016/S0040-4039(00)60436-7

General Description

Colorless to reddish-violet solid. Used in the production of methylene blue and photographic developer. Used as a chemical intermediate for dyes and diazonium chloride salts and as an analytical reagent to detect chloroamine in water.

Reactivity Profile

N,N-Dimethyl-1,4-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. Incompatible with strong oxidizers, strong acids and acid anhydrides. Also incompatible with alkalis .

Hazard

Toxic by ingestion or inhalation of vapor.

Health Hazard

Lowest toxic dose with skin effect is 14 mg/kg. Irritant to skin and eyes.

Fire Hazard

When heated to decomposition, N,N-Dimethyl-1,4-phenylenediamine emits toxic fumes of nitrogen oxides.

First aid

If this chemical gets into the eyes, remove any contact lenses at once and irrigate immediately for at least15 min, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts the skin,remove contaminated clothing and wash immediately withsoap and water. Seek medical attention immediately. If thischemical has been inhaled, remove from exposure, begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR if heart actionhas stopped. Transfer promptly to a medical facility. Whenthis chemical has been swallowed, get medical attention.Give large quantities of water and induce vomiting. Do notmake an unconscious person vomit.

storage

Color Code—Blue: Health Hazard/Poison: Storein a secure poison location. Store in cool, dry place awayfrom strong oxidizers and acids.

Shipping

Phenylenediamines require a shipping label of“POISONOUS/TOXIC MATERIALS.” T

N,N-Dimethyl-1,4-phenylenediamine synthesis

Synthesis of N,N-Dimethyl-1,4-phenylenediamine from N,N-DIMETHYL-4-NITROANILINE

N,N-Dimethyl-1,4-phenylenediamine Preparation Products And Raw materials

Raw materials

ZINC Methyl Orange Ethanol Coumarin Potassium carbonate

Nitrification N,N-Dimethylaniline m-Phenylenediamine Xylidine

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Preparation Products

4-DIMETHYLAMINOPHENYL ISOCYANATE Methylene Blue Fenaminosulf 6-BROMO-2,4-DIMETHOXYPYRIMIDINE 4-(DIMETHYLAMINO)PHENYL ISOTHIOCYANATE

4-Iodo-N,N-dimethyl-Benzenamine 9-(dimethylamino)-5-((4-(dimethylamino)phenyl)amino)benzo[a]phenoxazin-7-ium chloride Solvent Blue 8

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N,N-Dimethyl-1,4-phenylenediamine Suppliers

Global( 281)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Nanjing Kaitian Chemical Co., LTD	+86-13337816511 +86-13337835376	kt_chem@126.com	China	91	58
Hebei Chuanghai Biotechnology Co., Ltd	+8615350571055	Sibel@chuanghaibio.com	China	8738	58
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21591	55
Hefei TNJ Chemical Industry Co.,Ltd.	+86-0551-65418679 +8618949832763	info@tnjchem.com	China	2988	55
career henan chemical co	+86-0371-86658258 +8613203830695	sales@coreychem.com	China	29819	58
Shenzhen Nexconn Pharmatechs Ltd	+86-755-89396905 +86-15013857715	admin@nexconn.com	China	10404	58
Alchem Pharmtech,Inc.	8485655694	sales@alchempharmtech.com	United States	63687	58
CONIER CHEM AND PHARMA LIMITED	+8618523575427	sales@conier.com	China	49977	58
Antai Fine Chemical Technology Co.,Limited	18503026267	info@antaichem.com	CHINA	9636	58
Hubei Ipure Biology Co., Ltd	+8613367258412	ada@ipurechemical.com	China	10236	58

Supplier	Advantage
Nanjing Kaitian Chemical Co., LTD	58
Hebei Chuanghai Biotechnology Co., Ltd	58
Henan Tianfu Chemical Co.,Ltd.	55
Hefei TNJ Chemical Industry Co.,Ltd.	55
career henan chemical co	58
Shenzhen Nexconn Pharmatechs Ltd	58
Alchem Pharmtech,Inc.	58
CONIER CHEM AND PHARMA LIMITED	58
Antai Fine Chemical Technology Co.,Limited	58
Hubei Ipure Biology Co., Ltd	58

View Lastest Price from N,N-Dimethyl-1,4-phenylenediamine manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2026-03-20	N,N-Dimethyl-1,4-phenylenediamine 99-98-9	US $10.00 / KG	1KG	99%	10 mt	Hebei Chuanghai Biotechnology Co., Ltd
2025-09-16	N,N-Dimethyl-1,4-phenyle nediamine 99-98-9	US $0.00-0.00 / kg	1kg	97%	5 tons	Nanjing Kaitian Chemical Co., LTD
2023-05-04	N,N-Dimethyl-1,4-phenylenediamine 99-98-9	US $48.00-40.00 / KG	1KG	99%	200tons	Guangzhou Sunton Biotechnology Co., Ltd.

N,N-Dimethyl-1,4-phenylenediamine
99-98-9
US $10.00 / KG
99%
Hebei Chuanghai Biotechnology Co., Ltd

N,N-Dimethyl-1,4-phenyle nediamine
99-98-9
US $0.00-0.00 / kg
97%
Nanjing Kaitian Chemical Co., LTD

N,N-Dimethyl-1,4-phenylenediamine
99-98-9
US $48.00-40.00 / KG
99%
Guangzhou Sunton Biotechnology Co., Ltd.

N,N-Dimethyl-1,4-phenylenediamine Spectrum

N,N-Dimethyl-1,4-phenylenediamine(99-98-9)MS N,N-Dimethyl-1,4-phenylenediamine(99-98-9)¹HNMR N,N-Dimethyl-1,4-phenylenediamine(99-98-9)¹³CNMR N,N-Dimethyl-1,4-phenylenediamine(99-98-9)IR1 N,N-Dimethyl-1,4-phenylenediamine(99-98-9)IR2

99-98-9(N,N-Dimethyl-1,4-phenylenediamine)Related Search:

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4-ANIMODIMETHYLANILINE 4-AMINODIMETHYLANILINE 4-AMINO-N,N-DIMETHYLANILINE 4-DIMETHYLAMINOANILINE Dimethyl-p-phenylenediamine DIMETHYL(N,N-)-P-PHENYLENEDIAMINE WURSTER'S RED 4-(dimethylamino)benzenamine 4-(dimethylamino)phenylamine 4-Benzenediamine,N,N-dimethyl-1 N,N-Dimethyl-benzene-1,4-diamine N,N-Dimethyl-p-Benzenediamine N,N-Dimethyl-p-fenylendiamin n,n-dimethyl-p-phenylenediamin p-(Dimethylamino)aniline p-(Dimethylamino)phenylamine p-Amino-N,N-dimethylaniline p-Dimethylaminoaniline p-dimethylaminophenylamine Pluragard C 133 N,N-Dimethyl-p-phenylenediamine,85%,pract. N,N-Dimethyl-p-phenylenediamine,4-(Dimethylamino)aniline, 4-Amino-N,N-dimethylaniline, N,N-Dimethyl-1,4-phenylenediamine, DMPPDA N,N-Dimethyl-p-pheny 4-Amino-N,N-dimethylaniline 96% N1,N1-Dimethylphenylene-1,4-diamine, Wurster's Red, N1,N1-Dimethylbenzene-1,4-diamine, 4-Amino-N,N-dimethylaniline N,N-DiMethyl-p-phenylenediaMine, pract., 85% 5GR N,N-DiMethyl-1,4-phenylenediaMine N, N-Dimethyl-p-phenylenediamine, Practical -p-phenyL Dihydrochloric acid dimethyl p-phenylenediamine test solution(ChP) N,N-Dimethyl-p-phenylenediamine;p-Aminodimethylaniline N,N-DIMETHYL-1,4-PHENYLENEDIAMINE P-AMINODIMETHYLANILINE P-DIMETHYLAMINOAZOBENZENE C.I. 76075 c.i.76075 ci76075 Crategine dimethyl-4-phenylenediamine Dimethyl-paraphenylenediamine dimethyl-para-phenylenediamine dlmethyl-1,4-phenylenediamine DMPD N,N-Dimethyl-1,4-benzenediamine n,n-dimethyl-4-benzenediamine p-Phenylenediamine, N,N-dimethyl- C.I.Oxidation Base 8 N,N-DIMETHYL-P-PHENYLENEDIAMINE*FREE BAS E N,N-Dimethyl-p-phenylenediamine,96% N,N-Dimethyl-p-phenylenediamine, pract., 85% 1,4-Benzenediamine, N,N-dimethyl- 4-Dimethylaminoaniline 96% P-Amine-N,N-dimethylaniline PARA-AMINODIMETHYLANILINE Dimethyl-p-phenylenediamine, N,N- 4-(Dimethylamino)aniline, 4-Amino-N,N-dimethylaniline, DMPPDA N,N-Dimethyl-p-Phenyldiamine N,N-Dimethyl-p-phenylenediamine, Wurster's Red