CAS 75-24-1
Linear Formula: (CH3)3 Al
MDL Number: MFCD00009015
EC No.: 200-853-0

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(2N) 99% Trimethylaluminum
(3N) 99.9% Trimethylaluminum
(4N) 99.99% Trimethylaluminum
(5N) 99.999% Trimethylaluminum


Compound Formula C3H9Al
Molecular Weight 72.09
Appearance Colorless iquid
Melting Point 15 °C
Boiling Point 125-126°C
Density 0.752 g/mL
Monoisotopic Mass 72.051964
Exact Mass 72.051964

Health & Safety Info  |  MSDS / SDS

Signal Word Danger
Hazard Statements H250-H260-H314
Hazard Codes F,C
Risk Codes 14-17-34
Safety Statements 16-43-45
RTECS Number BD2050000
Transport Information UN 3394 4.2/PG 1
WGK Germany 3


Trimethylaluminum (TMA) is a precursor for Aluminum Oxide deposition and is the most popular aluminum precursor used for the production of Metal-Organic Vapor-Phase Epitaxy. Trimethylaluminum is also used as a methylation agent and is often released from sounding rockets as a tracer in studies of upper atmospheric wind patterns. American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available. Trimethylaluminium is available in a wide range of ultra-high purity grades. American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available. Additional technical, research and safety (MSDS) information is available as is a Reference Calculator for converting relevant units of measurement.


Aluminum trimethanide; TMA; AlMe3; Aluminum trimethanide; aluminum, trimethyl-; Trimethylalane

Chemical Identifiers

Linear Formula (CH3)3 Al
CAS 75-24-1
Pubchem CID 16682925
MDL Number MFCD00009015
EC No. 200-853-0
Beilstein Registry No. 3587197
IUPAC Name trimethylalumane
InchI Identifier InChI=1S/3CH3.Al/h3*1H3;

Packaging Specifications

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Safety Data Sheet (SDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes, and 36,000 lb. tanker trucks.

Related Products & Element Information

See more Aluminum products. Aluminum (or Aluminum) (atomic symbol: Al, atomic number: 13) is a Block P, Group 13, Period 3 element with an atomic weight of 26.9815386. It is the third most abundant element in the earth's crust and the most abundant metallic element. Aluminum Bohr Model Aluminum's name is derived from alumina, the mineral from which Sir Humphrey Davy attempted to refine it from in 1812. It wasn't until 1825 that Aluminum was first isolated by Hans Christian Oersted. Aluminum is a silvery gray metal that possesses many desirable characteristics. It is light, nonmagnetic and non-sparking. It stands second among metals in the scale of malleability, and sixth in ductility. It is extensively used in many industrial applications where a strong, light, easily constructed material is needed. Elemental AluminumAlthough it has only 60% of the electrical conductivity of copper, it is used in electrical transmission lines because of its light weight. Pure aluminum is soft and lacks strength, but alloyed with small amounts of copper, magnesium, silicon, manganese, or other elements it imparts a variety of useful properties. Aluminum was first predicted by Antoine Lavoisierin 1787 and first isolated by Friedrich Wöhler in 1827.

Recent Research

Validation and comparable analysis of aluminum in the popular Chinese fried bread youtiao by wavelength dispersive XRF., Hua, Hongying, Jiang Xiaofei, and Wu Shimin , Food Chem, 2016 Sep 15, Volume 207, p.1-5, (2016)

Distinctive colonization of Bacillus sp. bacteria and the influence of the bacterial biofilm on electrochemical behaviors of aluminum coatings., Abdoli, Leila, Suo Xinkun, and Li Hua , Colloids Surf B Biointerfaces, 2016 Sep 1, Volume 145, p.688-94, (2016)

Bias in determining aluminum concentrations: Comparison of digestion methods and implications on Al management., Y He, Thomas, and Ziemkiewicz Paul F. , Chemosphere, 2016 Sep, Volume 159, p.570-6, (2016)

Integrative functional transcriptomic analyses implicate specific molecular pathways in pulmonary toxicity from exposure to aluminum oxide nanoparticles., Li, Xiaobo, Zhang Chengcheng, Bian Qian, Gao Na, Zhang Xin, Meng Qingtao, Wu Shenshen, Wang Shizhi, Xia Yankai, and Chen Rui , Nanotoxicology, 2016 Sep, Volume 10, Issue 7, p.957-69, (2016)

Co-exposure to aluminum and acrylamide disturbs expression of metallothionein, proinflammatory cytokines and induces genotoxicity: Biochemical and histopathological changes in the kidney of adult rats., Ghorbel, Imen, Maktouf Sameh, Fendri Nesrine, Jamoussi Kamel, Chaabouni Semia Ellouze, Boudawara Tahia, and Zeghal Najiba , Environ Toxicol, 2016 Sep, Volume 31, Issue 9, p.1044-58, (2016)

Metal Ion Imbalance-Related Oxidative Stress Is Involved in the Mechanisms of Liver Injury in a Rat Model of Chronic Aluminum Exposure., Yang, Yang, Wang Hong, Guo Yuanxin, Lei Wenjuan, Wang Jianfeng, Hu Xinyue, Yang Junqing, and He Qin , Biol Trace Elem Res, 2016 Sep, Volume 173, Issue 1, p.126-31, (2016)

Assessment of the impact of Aluminum on germination, early growth and free proline content in Lactuca sativa L., Silva, Patrícia, and Matos Manuela , Ecotoxicol Environ Saf, 2016 Sep, Volume 131, p.151-6, (2016)

Removing hydrochloric acid exhaust products from high performance solid rocket propellant using aluminum-lithium alloy., Terry, Brandon C., Sippel Travis R., Pfeil Mark A., I Gunduz Emre, and Son Steven F. , J Hazard Mater, 2016 Nov 5, Volume 317, p.259-66, (2016)

Mixed titanium, silicon, and aluminum oxide nanostructures as novel adsorbent for removal of rhodamine 6G and methylene blue as cationic dyes from aqueous solution., Pal, Umapada, Sandoval Alberto, Madrid Sergio Isaac Urib, Corro Grisel, Sharma Vivek, and Mohanty Paritosh , Chemosphere, 2016 Nov, Volume 163, p.142-52, (2016)

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