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N,N-Dimethyl-1,4-phenylenediamine structure
Chemical Name:
DMPD;ci76075;c.i.76075;Crategine;C.I. 76075;WURSTER'S RED;Pluragard C 133;N,N-Dimethyl-p-pheny;C.I.Oxidation Base 8;4-AMINODIMETHYLANILINE
Molecular Formula:
Formula Weight:
MOL File:

N,N-Dimethyl-1,4-phenylenediamine Properties

Melting point:
34-36 °C(lit.)
Boiling point:
262 °C(lit.)
refractive index 
1.5914 (estimate)
Flash point:
130 °C
storage temp. 
Water Solubility 
11 g/L (20 ºC)
Light Sensitive
Stable. Incompatible with acid chlorides, acid anhydrides, strong acids, strong oxidizing agents. Combustible.
CAS DataBase Reference
99-98-9(CAS DataBase Reference)
NIST Chemistry Reference
1,4-Benzenediamine, N,N-dimethyl-(99-98-9)
EPA Substance Registry System
1,4-Benzenediamine, N,N-dimethyl-(99-98-9)
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes  T
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  3
RTECS  ST0874000
Hazard Note  Toxic/Keep Cold
HazardClass  6.1
PackingGroup  II
HS Code  29215900
Hazardous Substances Data 99-98-9(Hazardous Substances Data)
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H300 Fatal if swallowed Acute toxicity,oral Category 1, 2 Danger P264, P270, P301+P310, P321, P330,P405, P501
H301 Toxic if swalloed Acute toxicity,oral Category 3 Danger P264, P270, P301+P310, P321, P330,P405, P501
H311 Toxic in contact with skin Acute toxicity,dermal Category 3 Danger P280, P302+P352, P312, P322, P361,P363, P405, P501
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H331 Toxic if inhaled Acute toxicity,inhalation Category 3 Danger P261, P271, P304+P340, P311, P321,P403+P233, P405, P501
Precautionary statements:
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P271 Use only outdoors or in a well-ventilated area.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P311 Call a POISON CENTER or doctor/physician.
P301+P310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.
P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P405 Store locked up.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.
P501 Dispose of contents/container to..…

N,N-Dimethyl-1,4-phenylenediamine price More Price(9)

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 $55.1 2018-11-13 Buy
Sigma-Aldrich 07750 N,N-Dimethyl-p-phenylenediamine for spectrophotometric det. of SO42-, S2-, ≥97.0% 99-98-9 100g $163 2018-11-13 Buy
TCI Chemical D0779 N,N-Dimethyl-1,4-phenylenediamine >98.0%(GC)(T) 99-98-9 25g $50 2018-11-22 Buy
Alfa Aesar A15962 N,N-Dimethyl-p-phenylenediamine, 96% 99-98-9 250g $167 2018-11-13 Buy
Alfa Aesar A15962 N,N-Dimethyl-p-phenylenediamine, 96% 99-98-9 50g $44.1 2018-11-13 Buy

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

Chemical Properties

grey to black solid


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

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 .


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.

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

Raw materials

Preparation Products

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

Global( 163)Suppliers
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N,N-Dimethyl-1,4-phenylenediamine Spectrum

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