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N,N-Diethylaniline structure
Chemical Name:
Molecular Formula:
Formula Weight:
MOL File:

N,N-Diethylaniline Properties

Melting point:
-38 °C
Boiling point:
217 °C(lit.)
0.938 g/mL at 25 °C(lit.)
vapor density 
5.2 (vs air)
vapor pressure 
1 mm Hg ( 49.7 °C)
refractive index 
n20/D 1.542(lit.)
Flash point:
208 °F
storage temp. 
Store below +30°C.
water: soluble1g in 70ml at 12°C
6.61(at 22℃)
Clear yellow
8 (0.1g/l, H2O, 20℃)
explosive limit
Water Solubility 
14 g/L (12 ºC)
Stable. Combustible. Incompatible with strong oxidizing agents, strong acids.
CAS DataBase Reference
91-66-7(CAS DataBase Reference)
NIST Chemistry Reference
Benzenamine, N,N-diethyl-(91-66-7)
EPA Substance Registry System
Benzenamine, N,N-diethyl-(91-66-7)
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes  T,N
Risk Statements  23/24/25-33-51/53
Safety Statements  28-37-45-61-28A
RIDADR  UN 2432 6.1/PG 3
WGK Germany  2
RTECS  BX3400000
Autoignition Temperature 500 °C
Hazard Note  Toxic
HS Code  2921 42 00
HazardClass  6.1
PackingGroup  III
Hazardous Substances Data 91-66-7(Hazardous Substances Data)
Toxicity LD50 orally in Rabbit: 610 mg/kg LD50 dermal Rat > 5000 mg/kg
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H227 Combustible liquid Flammable liquids Category 4 Warning P210, P280, P370+P378, P403+P235,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
H371 May cause damage to organs Specific target organ toxicity, single exposure Category 2 Warning P260, P264, P270, P309+P311, P405,P501
H373 May cause damage to organs through prolonged or repeated exposure Specific target organ toxicity, repeated exposure Category 2 Warning P260, P314, P501
H401 Toxic to aquatic life Hazardous to the aquatic environment, acute hazard Category 2 P273, P501
H411 Toxic to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 2
Precautionary statements:
P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
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.
P273 Avoid release to the environment.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P311 Call a POISON CENTER or doctor/physician.
P391 Collect spillage. Hazardous to the aquatic environment
P301+P310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.
P370+P378 In case of fire: Use … for extinction.
P405 Store locked up.
P403+P235 Store in a well-ventilated place. Keep cool.
P501 Dispose of contents/container to..…

N,N-Diethylaniline price More Price(11)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 185868 N,N-Diethylaniline ≥99% 91-66-7 50ml $25.3 2018-11-13 Buy
Sigma-Aldrich 185868 N,N-Diethylaniline ≥99% 91-66-7 1l $59.8 2018-11-13 Buy
TCI Chemical D0475 N,N-Diethylaniline >99.0%(GC)(T) 91-66-7 25mL $12 2018-11-22 Buy
TCI Chemical D0475 N,N-Diethylaniline >99.0%(GC)(T) 91-66-7 500mL $32 2018-11-22 Buy
Alfa Aesar A10560 N,N-Diethylaniline, 99% 91-66-7 500ml $28.2 2018-11-13 Buy

N,N-Diethylaniline Chemical Properties,Uses,Production

Chemical Properties

light yellow liquid


DEA (diethanolamine) is an organic alkali used in formulations to neutralize organic acids and thus adjust pH. It is usually listed on ingredient labels preceding the compound that it is neutralizing. oleth-3 phosphate, for example, is a powerful emulsifier, but it is very acidic when it is made, so manufacturers use DeA to neutralize it and improve the nature of a formulation.


As dyestuff intermediate, in organic syntheses.

General Description

A colorless to yellow liquid with a fishlike odor, that is strongly corrosive. Irritating to skin, eyes and mucous membranes and moderately toxic by inhalation, absorption and ingestion. Flash point 185°F. Used in dyes and in the production of organic chemicals.

Air & Water Reactions

Insoluble in water.

Reactivity Profile

N,N-Diethylaniline 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.

Health Hazard

May be fatal if inhaled, swallowed or absorbed through the skin. Vapor or mist is irritant to the eyes, mucous membranes, upper respiratory tract; causes skin irritation. Absorption into the body leads to the formation of methemoglobin which, in sufficient concentration, may cause cyanosis. Onset may be delayed 2-4 hours or longer. Exposure can cause nausea, dizziness, headache, damage to the eyes, and blood effects.

Fire Hazard

Special Hazards of Combustion Products: Emits toxic fumes under fire conditions.

Safety Profile

Moderately toxic by ingestion and intraperitoneal routes. When heated to decomposition it emits toxic fumes of NOx. See also ANILINE DYES.

Purification Methods

Reflux the base for 4hours with half its weight of acetic anhydride, then fractionally distil it under reduced pressure (b 92o/10mm). [Beilstein 12 IV 252.]

N,N-Diethylaniline Preparation Products And Raw materials

Raw materials

Preparation Products

N,N-Diethylaniline Suppliers

Global( 198)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Hangzhou FandaChem Co.,Ltd.
0086 158 5814 5714 (Mobile; WhatsApp; Telegram)
+86-571-56059825 CHINA 2461 55
Henan DaKen Chemical CO.,LTD.
+86-371-55531817 CHINA 22043 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693 CHINA 20786 55
Mainchem Co., Ltd.
+86-0592-6210733 CHINA 32651 55
Anhui Royal Chemical Co., Ltd.
+86-025-86736275 CHINA 486 55
Hefei TNJ Chemical Industry Co.,Ltd.
86-0551-65418684 18949823763
86-0551-65418684 China 1664 55
Tianjin Zhongxin Chemtech Co., Ltd.
022-66880086 CHINA 559 58
Hubei Jusheng Technology Co.,Ltd.
86-188-71490254 CHINA 20229 58
Yancheng Green Chemicals Co.,Ltd
86-515-87883652 CHINA 351 58
career henan chemical co
+86-371-86658258 CHINA 19997 58

View Lastest Price from N,N-Diethylaniline manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2018-12-22 N,N-Diethylaniline
US $1.00 / kg 1kg 98% 100KG career henan chemical co

N,N-Diethylaniline Spectrum

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