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T3134

Sigma-Aldrich

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

≥95%, powder

Synonym(s):

TMPPD, Wurster’s reagent

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About This Item

Linear Formula:
C6H4[N(CH3)2]2·2HCl
CAS Number:
637-01-4
Molecular Weight:
237.17
Beilstein/REAXYS Number:
7442241
EC Number:
211-274-8
MDL number:
MFCD00012482
UNSPSC Code:
12171500
PubChem Substance ID:
24900109
NACRES:
NA.47
Pricing and availability is not currently available.

Quality Level

200

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

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GranuCult® Nutrient Broth

agency

APHA, ISO 6888

agency

-

agency

according to IFU Method No. 12

agency

FDA-BAM

application(s)

food and beverages
microbiology
pathogen testing

application(s)

food and beverages
pharmaceutical

application(s)

bioburden testing
food and beverages

application(s)

food and beverages
pharmaceutical

form

granular

form

powder

form

medium granules (dehydrated culture medium (DCM))

form

granular

technique(s)

microbiological culture: suitable

technique(s)

microbe id | specific enzyme detection: suitable, microbiological culture: suitable

technique(s)

-

technique(s)

microbiological culture: suitable

manufacturer/tradename

GranuCult® prime

manufacturer/tradename

-

manufacturer/tradename

GranuCult® prime

manufacturer/tradename

GranuCult® prime

suitability

heterotrophic bacteria

suitability

Enterococcus spp., Haemophilus spp., Pneumococcus spp., Staphylococcus spp., Streptococcus spp.

suitability

Alicyclobacillus spp. (spp)

suitability

heterotrophic bacteria

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.

Caution

May darken in storage.

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H315,H319

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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    MKCN7496
    MKCG4403
    MKCL4711

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