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07750

Supelco

N,N-Dimethyl-p-phenylenediamine

for spectrophotometric det. of SO42-, S2-, ≥97.0%

Synonym(s):
4-(Dimethylamino)aniline, 4-Amino-N,N-dimethylaniline, DMPPDA, N,N-Dimethyl-1,4-phenylenediamine
Linear Formula:
(CH3)2NC6H4NH2
CAS Number:
Molecular Weight:
136.19
Beilstein:
508105
Beilstein:
1718733
EC Number:
EC Number:
MDL number:
MDL number:
PubChem Substance ID:
PubChem Substance ID:
NACRES:
NA.21

Quality Level

grade

ACS reagent
puriss. p.a.

vapor density

1.59 (vs air)

assay

≥97.0% (GC)
≥97.0%
≥99.8%

vapor pressure

44.6 mmHg ( 20 °C)

quality

for spectrophotometric det. of SO42-, S2-
absolute alcohol, without additive, A15 o1

autoignition temp.

683 °F

application(s)

UV/Vis spectroscopy: suitable

bp

262 °C (lit.)
78 °C (lit.)

mp

34-36 °C (lit.)
−114 °C (lit.)

expl. lim.

19 %, 60 °F

storage temp.

2-8°C

impurities

KMnO4-reducing substances, in accordance
substances darkened by H2SO4, in accordance
≤0.0004% free alkali (as NH3)
≤0.001% aldehyde (as CH3CHO)
≤0.001% formaldehyde (HCHO)
≤0.001% ketone (as CH3COCH3)
≤0.002% free acid (as CH3COOH)
≤0.1% methanol (CH3OH)
≤0.2% water

evapn. residue

≤0.001%

refractive index

n20/D 1.3600 (lit.)
n20/D 1.362

density

0.790 g/mL at 20 °C
0.789 g/mL at 25 °C (lit.)

cation traces

Al: ≤0.5 mg/kg
Ba: ≤0.1 mg/kg
Bi: ≤0.1 mg/kg
Ca: ≤0.5 mg/kg
Cd: ≤0.05 mg/kg
Co: ≤0.02 mg/kg
Cr: ≤0.02 mg/kg
Cu: ≤0.1 mg/kg
Fe: ≤0.1 mg/kg
K: ≤0.5 mg/kg
Li: ≤0.1 mg/kg
Mg: ≤0.1 mg/kg
Mn: ≤0.02 mg/kg
Mo: ≤0.1 mg/kg
Na: ≤1 mg/kg
Ni: ≤0.02 mg/kg
Pb: ≤0.1 mg/kg
Sr: ≤0.1 mg/kg
Zn: ≤0.1 mg/kg

SMILES string

CCO
CN(C)c1ccc(N)cc1

InChI

1S/C2H6O/c1-2-3/h3H,2H2,1H3
1S/C8H12N2/c1-10(2)8-5-3-7(9)4-6-8/h3-6H,9H2,1-2H3

InChI key

LFQSCWFLJHTTHZ-UHFFFAOYSA-N
BZORFPDSXLZWJF-UHFFFAOYSA-N

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Application

N,N-Dimethyl-p-phenylenediamine (DMPD) may be used as a reagent for the determination of amoxicillin in aqueous solutions and pharmaceutical formulations by ultraviolet-visible (UV-vis) spectrophotometry.
It may also be used for the estimation of iron and copper based on the catalytic oxidation of DMPD with hydrogen peroxide (H2O2) and 1,3-phenylenediamine in the presence of H2O2 respectively by flow injection analysis (FIA) coupled with UV-vis spectrophotometry.

Other Notes

Sales restrictions may apply
Reagent for the spectrophotometric det. of SO42- and S2-

Footnote

1Distribution and use of ethyl alcohol in Switzerland require a license from the Swiss Federal Alcohol Administration

Legal Information

Riedel-de Haën is a registered trademark of Honeywell Specialty Chemicals Seelze GmbH.

Pictograms

FlameExclamation mark

Pictograms

Skull and crossbones

Signal Word

Danger

Hazard Statements

Hazard Statements

Precautionary Statements

Hazard Classifications

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

Hazard Classifications

Eye Irrit. 2 - Flam. Liq. 2

Storage Class Code

3 - Flammable liquids

Storage Class Code

6.1B - Non-combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 3

WGK

WGK 1

Flash Point(F)

55.4 °F

Flash Point(F)

195.8 °F - closed cup

Flash Point(C)

91 °C - closed cup

Flash Point(C)

13 °C

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

P K Zutshi et al.
Talanta, 17(10), 1014-1018 (1970-10-01)
The sensitivity and reproducibility of the Methylene Blue method for gaseous sulphide estimation have been investigated with respect to physical conditions and the concentrations of the reagents, especially sulphuric add. A new design of absorber is proposed to minimize gas-phase...
Determination of total and dissolved amount of iron in water samples using catalytic spectrophotometric flow injection analysis
Lunvongsa S, et al.
Talanta, 68(3), 969-973 (2006)
Spectrophotometric determination of amoxicillin by reaction with N, N-dimethyl-p-phenylenediamine and potassium hexacyanoferrate (III)
Al-Abachi MQ, et al.
Analytica Chimica Acta, 554(1-2), 184-189 (2005)
Novel catalytic oxidative coupling reaction of N, N-dimethyl-p-phenylenediamine with 1, 3-phenylenediamine and its applications to the determination of copper and iron at trace levels by flow injection technique
Lunvongsa S, et al.
Analytica Chimica Acta, 576(2), 261-269 (2006)
N.A. Matheson
Analyst, 99, 577-577 (1974)

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