PHENYLTRIMETHYLAMMONIUM HYDROXIDE
Synonym(s):Phenyltrimethylammonium hydroxide;TMAH
- CAS NO.：1899-02-1
- Empirical Formula: C9H15NO
- Molecular Weight: 153.22
- MDL number: MFCD00041899
- EINECS: 217-592-3
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 03:59:38
What is PHENYLTRIMETHYLAMMONIUM HYDROXIDE?
Chemical properties
clear colorless solution
The Uses of PHENYLTRIMETHYLAMMONIUM HYDROXIDE
Trimethylanilinium hydroxide is the most common reagent in this type of organic ammonium salts.Other reagents used are tetramethylammonium hydroxide and m-(trifluoromethylphenyl)trimethylammonium hydroxide. the acetate salt and fluoride salt have also been reported.
The Uses of PHENYLTRIMETHYLAMMONIUM HYDROXIDE
Learn more in the Product Information
Definition
ChEBI: A quaternary ammonium salt that is the hydroxide of trimethylphenylammonium. It is a derivatisation agent used in gas chromatography/mass spectrometry applications.
General Description
Trimethylphenylammonium hydroxide (TMAH) is a methylating reagent.
Properties of PHENYLTRIMETHYLAMMONIUM HYDROXIDE
| Boiling point: | 65 °C |
| refractive index | n |
| Flash point: | 10 °C |
| storage temp. | 2-8°C |
| form | Liquid |
| color | Clear colorless |
| BRN | 3917033 |
| CAS DataBase Reference | 1899-02-1(CAS DataBase Reference) |
| EPA Substance Registry System | Benzenaminium, N,N,N-trimethyl-, hydroxide (1899-02-1) |
Safety information for PHENYLTRIMETHYLAMMONIUM HYDROXIDE
| Signal word | Danger |
| Pictogram(s) |
 Corrosion Corrosives GHS05 |
| GHS Hazard Statements |
H314:Skin corrosion/irritation |
| Precautionary Statement Codes |
P280:Wear protective gloves/protective clothing/eye protection/face protection. P363:Wash contaminated clothing before reuse. P301+P330+P331:IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for PHENYLTRIMETHYLAMMONIUM HYDROXIDE
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