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Merck

730734

Trimethylgallium

packaged for use in deposition systems

Synonym(s):

Me3Ga, TMGa, TMG

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About This Item

Linear Formula:
Ga(CH3)3
CAS Number:
1445-79-0
Molecular Weight:
114.83
NACRES:
NA.23
PubChem Substance ID:
329764589
UNSPSC Code:
12352103
EC Number:
215-897-6
MDL number:
MFCD00014841

Key Documents

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InChI key

XCZXGTMEAKBVPV-UHFFFAOYSA-N

InChI

1S/3CH3.Ga/h3*1H3;

SMILES string

C[Ga](C)C

Quality Level

100

form

liquid

reaction suitability

core: gallium

bp

92.5 °C/760 mmHg (lit.)

mp

-15.8 °C (lit.)

density

1.132 g/mL at 25 °C

Related Categories

General description

Trimethylgallium (TMGa) [Ga(CH3)3] is a high-purity (99.9999%), colorless, and pyrophoric organometallic compound widely used as a key precursor in metal-organic chemical vapor deposition (MOCVD) for semiconductor manufacturing. Its high volatility and metal-organic reactivity make it essential for producing gallium-containing thin films in optoelectronics, photovoltaics, and high-frequency devices. TMGa′s ultra-low impurity levels ensure performance consistency in applications such as LEDs, laser diodes, and high-electron-mobility transistors (HEMTs). Recent advancements have also extended its role to quantum dot synthesis and photonic integrated circuits for energy-efficient and IoT-enabled technologies.

Application

Trimethylgallium can be used as:
  • A precursor to synthesize β-gallium oxide (β-Ga₂O₃) thin films for high-power electronic devices, offering superior breakdown voltage and thermal stability.
  • A precursor for epitaxial growth of gallium nitride (GaN) in blue LEDs and laser diodes, enabling high-brightness displays and optical communication systems.
  • A component in colloidal quantum dot synthesis for tunable near-infrared LEDs in biomedical imaging and telecommunications.
  • A source material for gallium arsenide (GaAs) layers in high-electron-mobility transistors (HEMTs), critical for 5G millimeter-wave amplifiers.

pictograms

FlameCorrosion
GHS02,GHS05

signalword

Danger

supp_hazards

EUH014

Storage Class

4.2 - Pyrophoric and self-heating hazardous materials

wgk

WGK 3

Hazard Classifications

Eye Dam. 1 - Pyr. Liq. 1 - Skin Corr. 1B - Water-react. 1

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Certificates of Analysis (COA)

Lot/Batch Number
HHBB6791V
HHBB6790V
HHBB6070V
HHBB6461V
HHBB5360V

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Mizuo Kajino et al.
GeoHealth, 4(9), e2020GH000259-e2020GH000259 (2020-10-02)
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Effects of Zn2+ and Ga3+ doping on the quantum yield of cluster-derived InP quantum dots
Friedfeld, Max R and Stein, et al.
The Journal of Chemical Thermodynamics, 151 (2019)
Noémie Kraaijpoel et al.
PloS one, 15(2), e0228788-e0228788 (2020-02-12)
Compression ultrasonography (CUS) is the first-line imaging test in the diagnostic management of suspected deep vein thrombosis (DVT) of the lower extremity. Three CUS strategies are used in clinical practice. However, their relative diagnostic accuracy is uncertain. This systematic review
C Guillén-Ponce et al.
Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico, 22(2), 201-212 (2020-01-26)
In the last 2 decades, clinical genetics on hereditary colorectal syndromes has shifted from just a molecular characterization of the different syndromes to the estimation of the individual risk of cancer and appropriate risk reduction strategies. In the last years, new
Gallium oxide nanostructures: A review of synthesis, properties and applications
Jamwal, Nishant Singh, et al.
Nanomaterials, 12, 2061-2061 (2022)
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