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Key Documents

T7394

Sigma-Aldrich

N,N,N′,N′-Tetramethyl-p-phenylenediamine

99%, powder

Synonym(s):

TMPD, TMPDA, TMPPD, Wurster’s reagent

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About This Item

Linear Formula:
C6H4[N(CH3)2]2
Molecular Weight:
164.25
Beilstein/REAXYS Number:
1564025
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

Quality Level

assay

99%

form

flakes
powder

color

off-white to brown

bp

260 °C (lit.)

mp

49-51 °C (lit.)

SMILES string

CN(C)c1ccc(cc1)N(C)C

InChI

1S/C10H16N2/c1-11(2)9-5-7-10(8-6-9)12(3)4/h5-8H,1-4H3

InChI key

CJAOGUFAAWZWNI-UHFFFAOYSA-N

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General description

N,N,N′,N′-Tetramethyl-p-phenylenediamine (TMPDA) is a redox reagent with low ionization potential widely used as an electron donor for photosystem I. It also acts as an electron acceptor in photosystem II.

Application

N,N,N′,N′-Tetramethyl-p-phenylenediamine (TMPDA) can be used:
  • In the flow injection analysis of benzoyl peroxide.
  • To study photoinduced electron transfer to halogenated solvents.

Caution

May darken in storage.

pictograms

Exclamation mark

signalword

Warning

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

230.0 °F - closed cup

flash_point_c

110 °C - closed cup


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Flow injection analysis of benzoyl peroxide using N, N, N, N-tetramethyl-p-phenylenediamine (TMPDA) and surfactants
Pharr DY & Tomsyck JA
Analytical Letters, 42(5), 821-832 (2009)
Interaction of N, N, N′ ,N′ -tetramethyl-p-phenylenediamine with photosystem II as revealed by thermoluminescence: reduction of the higher oxidation states of the Mn cluster and displacement of plastoquinone from the QB niche
Gauthier A, et al.
Biochimica et Biophysica Acta, 1757(11), 1547-1556 (2006)
Ultrafast photoinduced electron transfer from N, N, N′ , N′ -tetramethyl-p-phenylenediamine and N, N, N′ , N′ -tetramethylbenzidine to dichloromethane
Boilet L, et al.
Journal of Photochemistry and Photobiology A: Chemistry, 163(3), 529-536 (2004)
Toshiaki Miura
Chemico-biological interactions, 236, 67-73 (2015-04-30)
To investigate the mechanisms of cardiotoxicity induced by adriamycin (ADM), the enzymatic activities of ADM-Fe(3+), including the peroxidase and lipoxygenase (LOX) activity, and participation of active oxygen species in the damage to biological components were examined. ADM-Fe(3+), but not ADM
P P Bawol et al.
Physical chemistry chemical physics : PCCP, 20(33), 21447-21456 (2018-08-09)
The reversibility of current Li-O2 batteries suffers from high charging overpotentials. To address this problem, the use of redox mediators has been proposed, which are supposed to improve the sluggish reaction kinetics of the oxygen evolution reaction via a solution

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