Merck
All Photos(3)

T3134

Sigma-Aldrich

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

≥95%, powder

Synonym(s):
TMPPD, Wurster’s reagent
Linear Formula:
C6H4[N(CH3)2]2·2HCl
CAS Number:
Molecular Weight:
237.17
Beilstein:
7442241
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.47

Quality Level

assay

≥95%

form

powder

color

off-white to gray-brown

mp

222-224 °C (lit.)

solubility

H2O: 500 mg/10 mL

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

Cl[H].Cl[H].CN(C)c1ccc(cc1)N(C)C

InChI

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

InChI key

FBHKTSXMTASXFJ-UHFFFAOYSA-N

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General description

N,N,N′,N′-Tetramethyl-p-phenylenediamine dihydrochloride (TMPD) is a redox mediator used in the oxidase test for detecting bacterial cytochrome c oxidases. TMPD is commonly used to perform the oxidase test for the colorimetric identification of pathogenic and non-pathogenic bacteria.

Application

N,N,N′,N′-Tetramethyl-p-phenylenediamine dihydrochloride has been used to determine the oxidase activity displayed by various microorganisms.

Packaging

5, 25 g in glass bottle

Caution

May darken in storage.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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