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2,4-Dimethyl aniline

2,4-Dimethyl aniline
2,4-Dimethyl aniline structure
CAS No.
95-68-1
Chemical Name:
2,4-Dimethyl aniline
Synonyms
M-XYLIDINE;2,4-XYLIDINE;m-4-Xylidine;meta-xylidine;2,4-Xylylamine;2.4-DiMethylan;ASYM-M-XYLIDINE;4-AMINO-M-XYLENE;AKOS BBS-00003656;4-Amino-1,3-xylene
CBNumber:
CB7278882
Molecular Formula:
C8H11N
Formula Weight:
121.18
MOL File:
95-68-1.mol

2,4-Dimethyl aniline Properties

Melting point:
16 °C
Boiling point:
218 °C(lit.)
Density 
0.98 g/mL at 25 °C(lit.)
vapor density 
4.2 (vs air)
vapor pressure 
0.16 mm Hg ( 25 °C)
refractive index 
n20/D 1.558(lit.)
Flash point:
195 °F
storage temp. 
room temp
solubility 
5g/l
form 
Liquid
pka
pK1:4.89(+1) (25°C)
color 
Clear yellow to red-brown
PH
7 (22g/l, H2O, 20℃)
explosive limit
1.1-7.0%(V)
Water Solubility 
5 g/L (20 ºC)
Merck 
14,10084
BRN 
636243
Stability:
Stable. Combustible. Incompatible with strong oxidizing agents, acids, acid anhydrides, acid chlorides, chloroformates, halogens.
CAS DataBase Reference
95-68-1(CAS DataBase Reference)
NIST Chemistry Reference
Benzenamine, 2,4-dimethyl-(95-68-1)
EPA Substance Registry System
Benzenamine, 2,4-dimethyl-(95-68-1)
SAFETY
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes  T,N
Risk Statements  23/24/25-33-51/53
Safety Statements  28-36/37-45-61-28A
RIDADR  UN 1711 6.1/PG 2
WGK Germany  2
RTECS  ZE8925000
8
Autoignition Temperature 860 °F
TSCA  Yes
HazardClass  6.1
PackingGroup  II
HS Code  29214910
Hazardous Substances Data 95-68-1(Hazardous Substances Data)
Symbol(GHS):
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
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
H341 Suspected of causing genetic defects Germ cell mutagenicity Category 2 Warning P201,P202, P281, P308+P313, P405,P501
H351 Suspected of causing cancer Carcinogenicity Category 2 Warning P201, P202, P281, P308+P313, P405,P501
H370 Causes damage to organs Specific target organ toxicity, single exposure Category 1 Danger P260, P264, P270, P307+P311, P321,P405, P501
H372 Causes damage to organs through prolonged or repeated exposure Specific target organ toxicity, repeated exposure Category 1 Danger P260, P264, P270, P314, P501
H373 May cause damage to organs through prolonged or repeated exposure Specific target organ toxicity, repeated exposure Category 2 Warning P260, P314, P501
H411 Toxic to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 2
Precautionary statements:
P201 Obtain special instructions before use.
P202 Do not handle until all safety precautions have been read and understood.
P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P260 Do not breathe 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.
P391 Collect spillage. Hazardous to the aquatic environment
P307+P311 IF exposed: call a POISON CENTER or doctor/physician.
P370+P378 In case of fire: Use … for extinction.
P405 Store locked up.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.
P403+P235 Store in a well-ventilated place. Keep cool.
P501 Dispose of contents/container to..…

2,4-Dimethyl aniline price More Price(5)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 301493 2,4-Dimethylaniline 98% 95-68-1 250ml $44.9 2018-11-13 Buy
Sigma-Aldrich 240915 2,4-Dimethylaniline ≥99% 95-68-1 50g $65.9 2018-11-13 Buy
TCI Chemical D0667 2,4-Dimethylaniline >98.0%(GC)(T) 95-68-1 25mL $12 2018-11-22 Buy
TCI Chemical D0667 2,4-Dimethylaniline >98.0%(GC)(T) 95-68-1 500mL $65 2018-11-22 Buy
Sigma-Aldrich 442315 2,4-Dimethylaniline analytical standard 95-68-1 442315 $19.6 2018-11-23 Buy

2,4-Dimethyl aniline Chemical Properties,Uses,Production

Chemical Properties

colourless to yellow or dark brown liquid

Definition

ChEBI: A primary arylamine that is aniline in which the hydrogens at the 2- and 4-positions are replaced by methyl groups. A clear to yellow liquid, it is used in production of certain dyes, pesticides and other chemicals.

General Description

Dark brown liquid.

Air & Water Reactions

2,4-Dimethyl aniline may be sensitive to prolonged exposure to air. Slightly soluble in water.

Reactivity Profile

2,4-Dimethyl aniline ignites on contact with fuming nitric acid . 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.

Fire Hazard

2,4-Dimethyl aniline is combustible.

Safety Profile

Suspected carcinogen. Poison by ingestion. Mutation data reported. When heated to decomposition it emits toxic fumes of NOx. See also other xylidine entries.

Metabolic pathway

The major urinary metabolite of 2,4-dimethylaniline (2,4-DMA) in rats is N-acetyl-4-amino-3-methylbenzoic acid, while in dogs, it is 6-hydroxy-2,4-dimethylaniline. Dogs also produce a smaller amount of unacetylated 4-amino-3-methylbenzoic acid and its glycine conjugate. 2,6-Dimethylaniline (2,6-DMA) is metabolized principally to 4-hydroxy-2,6- dimethylaniline in both species, but dogs also produce a significant quantity of 2-amino-3-methylbenzoic acid along with a trace amount of the glycine conjugate of the latter metabolite and 2,6-dimethylnitrosobenzene. Trace levels of an unknown postulated to be 3,5- dimethyl-4-iminoquinone are found in dog urine.

Purification Methods

Convert uns-xylidine to a derivative (see below) which, after recrystallisation, is decomposed with alkali to give the free base. Dry it over KOH and fractionally distil. The acetyl derivative has m 130o, the benzoyl derivative has m 192o, and the picrate has m 209o. [Beilstein 12 H 1111, 12 IV 2545.]

2,4-Dimethyl aniline Preparation Products And Raw materials

Raw materials

Preparation Products


2,4-Dimethyl aniline Suppliers

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2,4-Dimethyl aniline Spectrum


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