Tetramethylammonium hydroxide
四甲基氢氧化铵
Also known as: TMAH, N,N,N-Trimethylmethanaminium hydroxide, Tetramethylammonium hydroxide solution, TMNOH, Tetramethylammonium hydroxide pentahydrate
- CAS No.
- 75-59-2
- Jingsj CID
- J-1089529-4
- Molecular Formula
- C4H13NO
- Chinese Name
- 四甲基氢氧化铵
- Molecular Weight
- 91.152 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
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Request a quotePhysicochemical Properties
| Melting Point | °C |
|---|---|
| Boiling Point | 110 °C |
| Density | 0.866 g/mL at 25 °C |
| Flash Point | 80 °F |
GHS Safety & Compliance
Flammable / Corrosion / Acute Toxicity / Health Hazard / Environmental HazardSignal word: Danger
Frequently Asked Questions
What is the CAS number of Tetramethylammonium hydroxide?
75-59-2
What are the molecular formula and molecular weight of Tetramethylammonium hydroxide?
C4H13NO, molecular weight 91.152 g/mol
Is Tetramethylammonium hydroxide hazardous?
Danger
Data compiled from public chemical databases and supplier catalogs; verify specifications with suppliers before purchase. · Last updated: 8/21/2026