ChemicalBook > CAS DataBase List > N,N-Dimethylbenzylamine

N,N-Dimethylbenzylamine

Product Name
N,N-Dimethylbenzylamine
CAS No.
103-83-3
Chemical Name
N,N-Dimethylbenzylamine
Synonyms
BDMA;N,N-DiMethyl-1-phenylMethanaMine;Benzyldimethylamine;N,N-DIETHYLBENZYLAMINE;N,N-Dimethyl-N-benzylamine;BENZYLDIETHYLAMINE;Dabco B-16;sumine2015;Dabco BDMA;Sumine 2015
CBNumber
CB8240778
Molecular Formula
C9H13N
Formula Weight
135.21
MOL File
103-83-3.mol
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N,N-Dimethylbenzylamine Property

Melting point:
-75 °C
Boiling point:
183-184 °C765 mm Hg(lit.)
Density 
0.9 g/mL at 25 °C(lit.)
vapor pressure 
2.4 hPa (20 °C)
refractive index 
n20/D 1.501(lit.)
Flash point:
130 °F
storage temp. 
Store below +30°C.
solubility 
water: soluble
pka
pK1:9.02(+1) (25°C)
form 
Liquid
color 
Clear colorless to light yellow
PH
10 (10g/l, H2O, 20℃)(saturated solution)
Odor
strong fish odor
explosive limit
0.9-6.3%(V)
Water Solubility 
8 g/L (20 ºC)
Sensitive 
Air Sensitive
BRN 
1099620
Stability:
Stable. Incompatible with strong acids, strong oxidizing agents.
LogP
1.98 at 25℃
CAS DataBase Reference
103-83-3(CAS DataBase Reference)
NIST Chemistry Reference
Benzenemethanamine, N,N-dimethyl-(103-83-3)
EPA Substance Registry System
N,N-Dimethylbenzylamine (103-83-3)
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Safety

Hazard Codes 
C
Risk Statements 
10-20/21/22-34-52/53
Safety Statements 
26-36-45-61
RIDADR 
UN 2619 8/PG 2
WGK Germany 
2
RTECS 
DP4500000
10-13-23
Autoignition Temperature
410 °C
TSCA 
Yes
HazardClass 
8
PackingGroup 
II
HS Code 
29214980
Toxicity
LD50 orally in Rabbit: 290 mg/kg LD50 dermal Rat 695 mg/kg
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H226Flammable liquid and vapour

H301Toxic if swalloed

H314Causes severe skin burns and eye damage

H411Toxic to aquatic life with long lasting effects

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P273Avoid release to the environment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
8.03206
Product name
N,N-Dimethylbenzylamine
Purity
for synthesis
Packaging
250ML
Price
$49.2
Updated
2024/03/01
Sigma-Aldrich
Product number
8.03206
Product name
N,N-Dimethylbenzylamine
Purity
for synthesis
Packaging
1L
Price
$159
Updated
2024/03/01
Sigma-Aldrich
Product number
185582
Product name
N,N-Dimethylbenzylamine
Purity
≥99%
Packaging
100ml
Price
$34.1
Updated
2024/03/01
Sigma-Aldrich
Product number
13365
Product name
N,N-Dimethylbenzylamine
Purity
for protein sequence analysis, ≥99.5% (GC)
Packaging
50mL
Price
$171
Updated
2022/05/15
TCI Chemical
Product number
D0688
Product name
N,N-Dimethylbenzylamine
Purity
>98.0%(GC)
Packaging
25mL
Price
$19
Updated
2024/03/01
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N,N-Dimethylbenzylamine Chemical Properties,Usage,Production

Chemical Properties

Colorless to light yellow flammable liquid with ammonia odor. Soluble in ethanol, ether, insoluble in water.

Uses

N,N-Dimethylbenzylamine was used in the synthesis of bis[(N,N-dimethylamino)benzyl] selenide. It has been used as catalyst during curing reaction of formulations of diglycidyl ether of bisphenol A and tetrahydrophthalic anhydride. It undergoes directed ortho metalation with butyl lithium. It reacts with methyl iodide to get ammonium salt, which is used as phase transfer catalysts. Further, it is used as a catalyst for the formation of polyurethane foams and epoxy resins.

Preparation

25% Aqueous Dimethylamine, 1088 grams
Benzyl Chloride, 126.6 grams
In the apparatus of Example 1, the benzyl chloride was added dropwise over a two-hour period to the amine (molar ratio 1 to 6) at a rate sufficient to maintain the temperature below 40°C. Stirring was continued at room temperature for an additional hour to insure completion of the reaction denoted by the equation below.

Thereafter the reaction mixture was cooled in a separatory funnel while standing in a refrigerator maintained at 5° C. and separated into two layers. The upper oily layer, weighing 111.5g, was removed and steam distilled until no further oleaginous component was observed in the distillate as it came over. The crude distillate was found to contain 103.5g of N,N-dimethylbenzylamine (76.1% of theory), 3.3g of dimethylamine and no quaternary salts. The dimethylamine was distilled off below 29°C under atmospheric pressure from the N,N-dimethylbenzylamine (bp 82°C/18mmHg).

Synthesis Reference(s)

The Journal of Organic Chemistry, 40, p. 531, 1975 DOI: 10.1021/jo00892a043
Synthetic Communications, 6, p. 539, 1976 DOI: 10.1080/00397917608063545

General Description

Benzyldimethylamine appears as a colorless to light yellow liquid with an aromatic odor. Slightly less dense than water and slightly soluble in water. Corrosive to skin, eyes and mucous membranes. Slightly toxic by ingestion, skin absorption and inhalation. Used in the manufacture of adhesives;  dehydrohalogenating catalyst; corrosion inhibitor; acid neutralizer; potting compounds;  cellulose modifier and quaternary ammonium compounds.

Air & Water Reactions

Flammable. Slightly soluble in water.

Reactivity Profile

N,N-Dimethylbenzylamine neutralizes acids on 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 is generated by amines in combination with strong reducing agents, such as hydrides. May attack some plastics [USCG, 1999].

Health Hazard

Inhalation may be fatal as a result of spasm, inflammation and edema of the larynx and bronchi, chemical pneumonitis, and pulmonary edema. Symptoms of exposure may include burning sensation, coughing, wheezing, laryngitis, shortness of breath, headache, nausea, and vomitting.

Fire Hazard

Special Hazards of Combustion Products: Toxic vapors are generated when heated.

Safety Profile

Poison by ingestion. Moderately toxic by inhalation and skin contact. Corrosive. A severe eye and skin irritant. Flammable when exposed to heat or flame. When heated to decomposition it emits toxic fumes of NOx

Purification Methods

Dry the amine over KOH pellets and fractionate it over Zn dust in a CO2—free atmosphere. It has a pKa2 5 of 8.25 in 45% aqueous EtOH. Store it under N2 or in a vacuum. The picrate has m 94-95o, and the picrolonate has m 151o (from EtOH). [Skita & Keil Chem Ber 63 34 1930, Coleman J Am Chem Soc 55 3001 1933, Devereux et al. J Chem Soc 2845 1957.] The tetraphenyl borate salt has m 182-185o. [Crane Anal Chem 28 1794 1956, Beilstein 12 IV 2161.]

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N,N-Dimethylbenzylamine Suppliers

Jinan Jinhong Chemical Co. LTD
Tel
15853193335
Email
578166395@qq.com
Country
China
ProdList
17
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58
Hubei coward Chemical Co., Ltd
Tel
13125172151; 13125172151
Email
3508116617@qq.com
Country
China
ProdList
4992
Advantage
58
Tianjin Realet Chemical Technology Co.,Ltd.
Tel
022-022-58788819 13602056505
Fax
022-60321328
Email
linlin@realetchem.com
Country
China
ProdList
61
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55
Tianjin Zhongxin Chemtech Co., Ltd.
Tel
022-66880623
Fax
86(0)22-66880086
Email
sales@tjzxchem.com
Country
China
ProdList
613
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60
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
021-61259108 18621169109
Fax
86-21-61259102
Email
market03@meryer.com
Country
China
ProdList
40228
Advantage
62
Alfa Aesar
Tel
400-6106006
Fax
021-67582001/03/05
Email
saleschina@alfa-asia.com
Country
China
ProdList
30123
Advantage
84
Dr. J. Pharmachem (India)
Tel
+91 20 24332987
Fax
+91 20 24332137
Email
info@jpharmachem.com
Country
India
ProdList
97
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55
TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386
Fax
021-67121385
Email
Sales-CN@TCIchemicals.com
Country
China
ProdList
24529
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81
Energy Chemical
Tel
021-021-58432009 400-005-6266
Fax
021-58436166
Email
sales8178@energy-chemical.com
Country
China
ProdList
44689
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61
JinYan Chemicals(ShangHai) Co.,Ltd.
Tel
13817811078
Fax
86-021-50426522,50426273
Email
sales@jingyan-chemical.com
Country
China
ProdList
9976
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View Lastest Price from N,N-Dimethylbenzylamine manufacturers

Hebei Weibang Biotechnology Co., Ltd
Product
N,N-Dimethylbenzylamine 103-83-3
Price
US $1.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
10 mt
Release date
2024-11-13
Qingdao RENAS Polymer Material Co., Ltd.
Product
N,N-Dimethylbenzylamine 103-83-3
Price
US $0.00/kg
Min. Order
20kg
Purity
99%
Supply Ability
20 tons
Release date
2024-09-12
Hebei Chuanghai Biotechnology Co,.LTD
Product
N,N-Dimethylbenzylamine 103-83-3
Price
US $10.60/KG
Min. Order
1KG
Purity
99%
Supply Ability
5000kg
Release date
2024-08-01

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