Trimethylphenylammonium hydroxide solution
SIAL/79266 - ~0.5 M (CH3)3N(OH)C6H5 in methanol, derivatization grade (GC derivatization), LiChropur™
Synonym: Phenyltrimethylammonium hydroxide; TMAH
CAS Number: 1899-02-1
Empirical Formula (Hill Notation): C9H15NO
Molecular Weight: 153.22
MDL Number: MFCD00041899
Linear Formula: (CH3)3N(OH)C6H5
Product Type: Chemical
| concentration | ~0.5 M (CH3)3N(OH)C6H5 in methanol |
| form | liquid |
| grade | derivatization grade (GC derivatization) |
| impurities | ≤0.2% halides (as chloride) |
| InChI | 1S/C9H14N.H2O/c1-10(2,3)9 |
| InChI key | HADKRTWCOYPCPH-UHFFFAOYSA |
| quality | LiChropur™ |
| Quality Level | 100 ![]() |
| reaction suitability | reagent type: derivatization reagent reaction type: Esterifications |
| SMILES string | [OH-].C[N+](C)(C)c1ccccc1 |
| storage temp. | 2-8°C |
| technique(s) | gas chromatography (GC): suitable |
| Application: | Learn more in the Product Information |
| Application: | Suitable for the derivatization of amino acids, n-methyl and n-aryl carbamates and fatty acids, clonidine, and substituted phenylureas. |
| Application: | TMAH may be used as a 0.1 mole/litre solution in methanol to determine plasma concentrations of carbamazepine and other anticonvulsant drugs, including phenobarbital, diphenylhydantoin, primidone, and mephenytoin using Gas-Liquid Chromatography. |
| Disclaimer: | Sales restrictions may apply |
| General description: | Trimethylphenylammonium hydroxide (TMAH) is a methylating reagent. |
| Legal Information: | LiChropur is a trademark of Merck KGaA, Darmstadt, Germany |
| Other Notes: | Reagent for n-methyl and methyl esters. |
| Symbol | ![]() ![]() ![]() GHS02,GHS05,GHS06,GHS08 |
| Signal word | Danger |
| Hazard statements | H225 - H301 + H311 + H331 - H314 - H370 |
| Precautionary statements | P210 - P280 - P301 + P310 + P330 - P301 + P330 + P331 - P303 + P361 + P353 - P305 + P351 + P338 + P310 |
| Hazard Codes | F,T |
| Risk Statements | 11-23/24/25-36/38-39/23/24/25 |
| Safety Statements | 16-26-36/37-45 |
| RIDADR | UN1230 - class 3 - PG 2 - Methanol |
| WGK Germany | WGK 3 |
| Flash Point(F) | 51.8 °F - closed cup |
| Flash Point(C) | 11 °C - closed cup |
| Storage Temp. | 2-8°C |
| UNSPSC | 41115710 |





