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Merck

07770

N,N-Dimethyl-p-phenylenediamine dihydrochloride

suitable for microbiology, ≥99.0%

Synonym(s):

4-Amino-N,N-dimethylaniline dihydrochloride, DMPD · 2HCl, DMPPDA · 2HCl

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About This Item

Linear Formula:
(CH3)2NC6H4NH2 · 2HCl
CAS Number:
536-46-9
Molecular Weight:
209.12
UNSPSC Code:
41171621
NACRES:
NA.85
PubChem Substance ID:
329748518
EC Number:
208-635-7
Beilstein/REAXYS Number:
3913463
MDL number:
MFCD00012991

Key Documents

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InChI key

IAEDWDXMFDKWFU-UHFFFAOYSA-N

InChI

1S/C8H12N2.2ClH/c1-10(2)8-5-3-7(9)4-6-8;;/h3-6H,9H2,1-2H3;2*1H

SMILES string

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

assay

≥99.0% (AT), ≥99.0%

form

powder

loss

≤0.05% loss on ignition

mp

210-215 °C (dec.), 222 °C (dec.) (lit.)

cation traces

Ca: ≤10 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, K: ≤50 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Na: ≤500 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Zn: ≤5 mg/kg

application(s)

food and beverages, microbiology

Quality Level

200

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General description

N,N-Dimethyl-p-phenylenediamine dihydrochloride is an azoreduction product of acid orange 52 (AO52). It is useful in the oxidase test which differentiates bacteria based on their ability to utilise the dye.

Application

N,N-Dimethyl-p-phenylenediamine dihydrochloride has been used to determine the plasma oxidant capacity in terms of plasma ferric equivalent oxidative potential (PFEOP).

Disclaimer

May discolor to red on storage.

pictograms

Skull and crossbones
GHS06

signalword

Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral

Storage Class

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

wgk

WGK 3

ppe

Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges

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Certificates of Analysis (COA)

Lot/Batch Number
BCCM7286
BCCJ7958
BCCD7210
BCBZ8872
BCBT6135

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Martin Alexander
Encyclopedia of Microbiology (2000)
Modulation of Erythrocyte Plasma Membrane Redox System Activity by Curcumin
Prabhakar Singh
Biochemistry Research International (2016)
S Marroquí et al.
Journal of bacteriology, 183(3), 854-864 (2001-02-24)
We isolated a Tn5-induced Rhizobium tropici mutant that has enhanced capacity to oxidize N,N-dimethyl-p-phenylendiamine (DMPD) and therefore has enhanced respiration via cytochrome oxidase. The mutant had increased levels of the cytochromes c(1) and CycM and a small increase in the
Veronica Verde et al.
Free radical research, 36(8), 869-873 (2002-11-08)
Oxidative stress has been clearly implicated in human disease by a growing body of scientific evidences. There is no ideal method for the measurement of this parameter. A possible strategy would be to measure simultaneously several biomarkers representing damage to
Francisco J Morales et al.
Journal of agricultural and food chemistry, 50(16), 4657-4661 (2002-07-26)
The Maillard reaction has a dramatic impact on the overall acceptance and nutritional quality of most of the foods consumed daily in European countries. Melanoidins are polymeric structures formed in the last stage of the Maillard reaction with nearly unknown
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