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79267

Sigma-Aldrich

Trimethylphenylammonium hydroxide solution

~25% in H2O (1.68 M)

Sinónimos:

Phenyltrimethylammonium hydroxide, TMAH

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About This Item

Fórmula lineal:
(CH3)3N(OH)C6H5
Número de CAS:
1899-02-1
Peso molecular:
153.22
Beilstein/REAXYS Number:
3917033
MDL number:
MFCD00041899
UNSPSC Code:
12352005
PubChem Substance ID:
57652783
NACRES:
NA.22

form

liquid

concentration

~25% in H2O (1.68 M)

refractive index

n20/D 1.395

SMILES string

[OH-].C[N+](C)(C)c1ccccc1

InChI

1S/C9H14N.H2O/c1-10(2,3)9-7-5-4-6-8-9;/h4-8H,1-3H3;1H2/q+1;/p-1

InChI key

HADKRTWCOYPCPH-UHFFFAOYSA-M

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General description

Trimethylphenylammonium hydroxide solution (TMPAH) is a quaternary ammonium compound that is commonly used as a strong base in organic synthesis. It is also used as a deprotecting agent for the removal of t-butoxycarbonyl (Boc) groups from amino acids or peptides and benzyl protecting groups from alcohols or amines.

Application

Trimethylphenylammonium hydroxide solution can be used to initiate the polymerization of the monomer 1,8-dihydroxymethyl-1,3,5,7-octatetrayne (DHOT) for the preparation of polymer nanospheres. It is also used as a base in the synthesis of alkyl 3-nitroacrylates via aldol reaction with nitroacetaldehyde or nitroacetone.

pictograms

Corrosion
GHS05

signalword

Danger

hcodes

H314

Hazard Classifications

Eye Dam. 1 - Skin Corr. 1B

Storage Class

8A - Combustible corrosive hazardous materials

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

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