C3H9Al
72.09 g/mol
Electronic ChemicalDanger
Trimethylaluminum
CAS75-24-1EC200-853-0
Category
Electronic Chemical
Compound Class
Organometallic
Primary Use
Semiconductor thin film growth precursor
Trimethylaluminum is an organoaluminum compound that exists as a dimer and is a colorless, pyrophoric liquid. It is primarily used as a precursor in semiconductor thin film growth processes.
Precursor for semiconductor thin film growthSource of aluminum in chemical vapor deposition
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
Sourcing Trimethylaluminum?
Post a free purchase request — no account needed. It reaches suppliers of this product, and replies go straight to your inbox.
Related Compounds
StrongSame Parent
Methyllithium
CAS917-54-4
research compound
StrongSame Parent
Methylmagnesium iodide
CAS917-64-6
research compound
StrongSame Parent
Aluminum, dichloromethyl-
CAS917-65-7
research compound
StrongSame Parent
Dimethylaluminum chloride
CAS1184-58-3
research compound
ReferenceSame Category
Tetramethylammonium hydroxide
CAS75-59-2
Semiconductor photoresist developer and etchant
ReferenceSame Category
Lithium 4,5-dicyano-2-(trifluoromethyl)imidazolate
CAS761441-54-7
Lithium salt for battery electrolyte
ReferenceSame Category
Diisopropyldichlorosilane
CAS7751-38-4
Silane precursor for electronic chemicals
ReferenceSame Category
Germane
CAS7782-65-2
semiconductor production and doping agent
Related Reading
What Are Electronic Resins? The Polymers Inside Chips, Substrates, and Circuit Boards
"Electronic resin" is not one material. It is a family of electronic-grade polymers — epoxy molding compounds, laminate resins, build-up films, and photoresists — defined less by what they are made of than by the electrical, thermal, and dimensional numbers they must hit.
Read moreWhy the AI Boom Is Also a Chemistry Boom: Inside the Ultra-High-Purity Electronic Chemicals Supply Chain Behind HBM, CoWoS, and Electronic-Grade HF
An AI chip isn't just bigger than an ordinary chip — it passes through more lithography, etch, clean, and polish cycles, each consuming ultra-high-purity photoresist, CMP slurry, electronic-grade HF, sulfuric acid, and PGMEA at parts-per-trillion purity. A fact-based map of why this supply chain is short, hard to switch suppliers on, and now visibly tightening.
Read moreSafety Reference
Danger
H250Catches fire spontaneously if exposed to air
H260In contact with water releases flammable gases which may ignite spontaneously
H314Causes severe skin burns and eye damage
H318Causes serious eye damage
Regulatory Compliance1
- CN Catalogue of Hazardous ChemicalsCNRegulation
Customs Tariff Classification
The international HS code for Trimethylaluminum (CAS 75-24-1) is 2931.90.
HS code (international, 6-digit)
2931.90
EU CN code (8-digit)
2931 90 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
trimethylalumane
InChIKey
JLTRXTDYQLMHGR-UHFFFAOYSA-N
SMILES
C[Al](C)C
Synonyms (23)
- Al(Me)3
- Aluminum trimethanide
- Aluminum, trimethyl-
- TRIMETHYLALUMINUM (AL(CH3)3)
- Trimethylalane
- Trimethylaluminum
- Trimethylaluminum, elec. gr.
- trimethyaluminium
- trimethyaluminum
- trimethyl aluminium
- trimethylaiuminium
- trimethylalumane
- trimethylalumimum
- trirnethylaluminium
Sourcing Trimethylaluminum?
Post a free purchase request — no account needed. It reaches suppliers of this product, and replies go straight to your inbox.