Dimethylamine(124-40-3),Dimethylamine(124-40-3) Manufacturers & Suppliers,Synthesis,MSDS

Basic information

Name:
Dimethylamine
CAS No.:
124-40-3
Molecular Structure:
Formula:
C₂H₇N
Molecular Weight:
45.08
Synonyms:
N,N-Dimethylamine;N-Methylmethanamine;NSC 8650;
EINECS:
204-697-4
Density:
0.68 g/cm³
Melting Point:
-93 °C
Boiling Point:
6.1 °C at 760 mmHg
Solubility:
miscible with water
Appearance:
colourless compressed liquefied gas
Hazard Symbols:
F,Xn
Risk Codes:
12-20-37/38-41-34-20/22-11-39/23/24/25
Safety Description:
3-16-26-29-36/37/39-45 Details
Transport Information:
UN 2924 3/PG 2
particular:
particular

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Chemistry

IUPAC Name: N-Methylmethanamine
Synonyms of Dimethylamine (CAS NO.124-40-3): Dimethylamine (anhydrous) ; Methanamine, N-methyl- ; N,N-Dimethylamine ; N-Methylmethanamine ; Dimethylamine, in aqueous solution
CAS NO: 124-40-3
Molecular Formula: C₂H₇N
Molecular Weight: 45.08
Molecular Structure:
EINECS: 204-697-4
H bond acceptors: 1
H bond donors: 1
Freely Rotating Bonds: 0
Polar Surface Area: 3.24 Å²
Vapor density: 1.55 (vs air)
Vapor pressure: 16.97 psi ( 55 °C)
Refractive index: n20/D 1.37
Density: 0.654
Melting Point: -93°C
Boiling Point: 7°C
Flash Point: 60 °F
Solubility: Miscible
Appearance: colourless compressed liquefied gas
Storage temp: Flammables area
Sensitive: Hygroscopic
Stability: Stable. Generally used as a solution in water at concentrations up to around 40%. Extremely flammable in the pure form. Incompatible with strong oxidizing agents.
Product Categories of Dimethylamine (CAS NO.124-40-3): Pharmaceutical Intermediates;Compressed and Liquefied GasesChemical Synthesis;Chemical Synthesis;Compressed and Liquefied Gases;C2 to C6Chemical Synthesis;Amines;Nitrogen Compounds;Organic Bases;Synthetic Reagents

Uses

Dimethylamine (CAS NO.124-40-3) is a precursor to several industrially significant compounds. It is also raw material for dimefox and diphenhydramine.

Production

Dimethylamine (CAS NO.124-40-3) is manufactured by the reaction of methanol with ammonla．
2CH₃OH + NH₃→ (CH₃)₂NH + 2H₂O

Toxicity Data With Reference

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Effect	Source
guinea pig	LD50	oral	240mg/kg (240mg/kg)	BEHAVIORAL: EXCITEMENT BEHAVIORAL: MUSCLE WEAKNESS GASTROINTESTINAL: ULCERATION OR BLEEDING FROM STOMACH	Hygiene and Sanitation Vol. 32(6), Pg. 329, 1967.
mammal (species unspecified)	LC50	inhalation	3700mg/m³ (3700mg/m³)		Toksikologiya Novykh Promyshlennykh Khimicheskikh Veshchestv. Toxicology of New Industrial Chemical Substances. For English translation, see TNICS*. Vol. 14, Pg. 80, 1975.
mouse	LC50	inhalation	4725ppm/2H (4725ppm)		American Industrial Hygiene Association Journal. Vol. 43, Pg. 411, 1982.
mouse	LD50	intraperitoneal	736mg/kg (736mg/kg)		Yakugaku Zasshi. Journal of Pharmacy. Vol. 97, Pg. 1117, 1977.
mouse	LD50	oral	316mg/kg (316mg/kg)	BEHAVIORAL: EXCITEMENT BEHAVIORAL: MUSCLE WEAKNESS GASTROINTESTINAL: ULCERATION OR BLEEDING FROM STOMACH	Hygiene and Sanitation Vol. 32(6), Pg. 329, 1967.
rabbit	LD50	oral	240mg/kg (240mg/kg)	BEHAVIORAL: EXCITEMENT BEHAVIORAL: MUSCLE WEAKNESS GASTROINTESTINAL: ULCERATION OR BLEEDING FROM STOMACH	Hygiene and Sanitation Vol. 32(6), Pg. 329, 1967.
rabbit	LDLo	intravenous	4gm/kg (4000mg/kg)		"Merck Index; an Encyclopedia of Chemicals, Drugs, and Biologicals", 11th ed., Rahway, NJ 07065, Merck & Co., Inc. 1989Vol. 11, Pg. 509, 1989.
rat	LC50	inhalation	4540ppm/6H (4540ppm)	SENSE ORGANS AND SPECIAL SENSES: OTHER CHANGES: OLFACTION SENSE ORGANS AND SPECIAL SENSES: OTHER: EYE LUNGS, THORAX, OR RESPIRATION: DYSPNEA	American Industrial Hygiene Association Journal. Vol. 43, Pg. 411, 1982.
rat	LD50	oral	698mg/kg (698mg/kg)	BEHAVIORAL: EXCITEMENT BEHAVIORAL: MUSCLE WEAKNESS GASTROINTESTINAL: ULCERATION OR BLEEDING FROM STOMACH	Hygiene and Sanitation Vol. 32(6), Pg. 329, 1967.

Consensus Reports

EPA Genetic Toxicology Program. Reported in EPA TSCA Inventory.

Safety Profile

Safety Information of Dimethylamine (CAS NO.124-40-3):
Hazard Codes: F+,FXnCT
Risk Statements: 12-20-37/38-41-34-20/22-11-39/23/24/25
12: Extremely Flammable
20: Harmful by inhalation
37/38: Irritating to respiratory system and skin
41: Risk of serious damage to eyes
34: Causes burns
20/22: Harmful by inhalation and if swallowed
11: Highly Flammable
39/23/24/25: Toxic: danger of very serious irreversible effects through inhalation, in contact with skin and if swallowed
Safety Statements: 3-16-26-29-36/37/39-45
3: Keep in a cool place
16: Keep away from sources of ignition - No smoking
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
29: Do not empty into drains
36/37/39: Wear suitable protective clothing, gloves and eye/face protection
45: In case of accident or if you feel unwell, seek medical advice immediately (show label where possible)
RIDADR: UN 2924 3/PG 2
WGK Germany: 2
F: 3
HazardClass: 3
PackingGroup: II
Poison by ingestion. Moderately toxic by inhalation and intravenous routes. Mutation data reported. An eye irritant. Corrosive to the eyes, skin, and mucous membranes. A flammable gas. When heated to decomposition it emits toxic fumes of NO_x. Incompatible with acrylaldehyde, fluorine, and maleic anhydride

Standards and Recommendations

OSHA PEL: TWA 10 ppm
ACGIH TLV: TWA 5 ppm; STEL 15 ppm; Not Classifiable as a Human Carcinogen
DFG MAK: 2 ppm (3.7 mg/m³)
DOT Classification: 2.1; Label: Flammable Gas (UN 1032); DOT Class: 3; Label: Flammable Liquid (UN 1160)

Specification

Dimethylamine is a base, neutralizing acids in exothermic reactions, and a reducing agent. Dimethylamine is temperature sensitive. It reacts vigorously with mercury and chlorine. Besides, it also reacts violently with strong oxidizing agents and attacks copper and copper compounds. It still reacts with hypochlorites to give N-chloroamines, some of which are explosives when isolated.