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Substance Name: Trimethylamine
RN: 75-50-3
UNII: LHH7G8O305
InChIKey: GETQZCLCWQTVFV-UHFFFAOYSA-N

Note

  • Associated with egg "taints" - comparable to an egg having bad breath; degradation product of nitrogenous plant & animal substances; converted to free tertiary amine during putrefaction; detected in menstrual blood & urine stored at room temp; used as insect attractant; warming agent for gas.

Molecular Formula

  • C3-H9-N

Molecular Weight

  • 59.1111
 

Classification Codes

Classification Code

  • Reproductive Effect

Superlist Classification Codes

  • Reportable Quantity (RQ) = 100 lb
  • TWA (5 ppm); STEL (15 ppm)
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Names and Synonyms

Name of Substance

  • Trimethylamine

Synonyms

  • AI3-15639
  • CCRIS 6283
  • Dimethylmethaneamine
  • EC 200-875-0
  • EINECS 200-875-0
  • FEMA No. 3241
  • FEMA Number 3241
  • HSDB 808
  • Methanamine, N,N-dimethyl-
  • N,N-Dimethylmethanamine
  • N-Trimethylamine
  • Trimethylamine
  • UNII-LHH7G8O305

Systematic Names

  • Methanamine, N,N-dimethyl-
  • N,N-Dimethylmethanamine
  • Trimethylamine
  • Trimethylamine, in aqueous solution

Superlist Names

  • Methanamine, N,N-dimethyl-
  • Trimethylamine
  • Trimethylamine solution
  • Trimethylamine solution (30% or less)
  • Trimethylamine, anhydrous
  • Trimethylamine, anhydrous [UN1083] [Flammable gas]
  • Trimethylamine, aqueous solutions not >50% trimethylamine, by mass
  • Trimethylamine, aqueous solutions not >50% trimethylamine, by mass [UN1297] [Flammable liquid]
  • UN1083
  • UN1297

Registry Numbers

CAS Registry Number

  • 75-50-3

FDA UNII

  • LHH7G8O305

Other Registry Number

  • 4558-12-7

Related Registry Numbers

  • 20230-89-1 (hydriodide)
  • 2840-24-6 (hydrobromide)
  • 593-81-7 (hydrochloride)

System Generated Number

  • 0000075503

Structure Descriptors

InChI

InChI=1S/C3H9N/c1-4(2)3/h1-3H3

InChIKey

GETQZCLCWQTVFV-UHFFFAOYSA-N

Smiles

CN(C)C

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
frog LDLo subcutaneous 2gm/kg (2000mg/kg) CARDIAC: OTHER CHANGES

CARDIAC: PULSE RATE

BLOOD: OTHER CHANGES		 Skandinavisches Archiv fuer Physiologie. Vol. 10, Pg. 201, 1900.
guinea pig LD50 unreported 315mg/kg (315mg/kg)   Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 46(8), Pg. 79, 1981.
mammal (species unspecified) LC50 inhalation 19gm/m3 (19000mg/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 19gm/m3 (19000mg/m3) BEHAVIORAL: MUSCLE CONTRACTION OR SPASTICITY)

BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

BEHAVIORAL: EXCITEMENT		 Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 11(4), Pg. 26, 1967.
mouse LD50 intraperitoneal 946mg/kg (946mg/kg)   Yakugaku Zasshi. Journal of Pharmacy. Vol. 97, Pg. 1117, 1977.
mouse LD50 intravenous 90mg/kg (90mg/kg)   Medicina et Pharmacologia Experimentalis. Vol. 16, Pg. 529, 1967.
mouse LD50 unreported 460mg/kg (460mg/kg)   Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 46(8), Pg. 79, 1981.
pig LDLo oral 1gm/kg (1000mg/kg) PERIPHERAL NERVE AND SENSATION: SPASTIC PARALYSIS WITH OR WITHOUT SENSORY CHANGE

BEHAVIORAL: FOOD INTAKE (ANIMAL)		 Inhalation Toxicology. Vol. 2, Pg. 41, 1990.
rabbit LD50 unreported 240mg/kg (240mg/kg)   Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 46(8), Pg. 79, 1981.
rabbit LDLo intravenous 160mg/kg (160mg/kg)   Comptes Rendus des Seances de la Societe de Biologie et de Ses Filiales. Vol. 83, Pg. 481, 1920.
rabbit LDLo rectal 800mg/kg (800mg/kg)   Comptes Rendus des Seances de la Societe de Biologie et de Ses Filiales. Vol. 83, Pg. 481, 1920.
rabbit LDLo subcutaneous 800mg/kg (800mg/kg)   Comptes Rendus des Seances de la Societe de Biologie et de Ses Filiales. Vol. 83, Pg. 481, 1920.
rat LCLo inhalation 3500ppm/4H (3500ppm)   Toxicologist. Vol. 4, Pg. 68, 1984.
rat LD50 oral 500mg/kg (500mg/kg)   Inhalation Toxicology. Vol. 2, Pg. 41, 1990.
rat LD50 unreported 535mg/kg (535mg/kg)   Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 46(8), Pg. 79, 1981.

Physical Properties

Physical Property Value Units Temp (deg C) Source
Melting Point -1.17E+02 deg C   EXP
Boiling Point 2.8 deg C   EXP
pKa Dissociation Constant 9.801 (none)   EXP
log P (octanol-water) 0.16 (none)   EXP
Water Solubility 8.90E+05 mg/L 30 EXP
Vapor Pressure 1610 mm Hg 25 EXP
Henry's Law Constant 1.04E-04 atm-m3/mole 25 EXP
Atmospheric OH Rate Constant 6.09E-11 cm3/molecule-sec 25 EXP

Physical property data is provided to ChemIDplus by SRC, Inc.