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P9029

Sigma-Aldrich

o-Phenylenediamine

Peroxidase substrate, ≥98.0%, powder

Synonym(s):
1,2-Diaminobenzene, 1,2-Phenylenediamine, OPD
Empirical Formula (Hill Notation):
C6H8N2
CAS Number:
Molecular Weight:
108.14
Beilstein:
606074
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.83

vapor density

3.7 (vs air)

Quality Level

vapor pressure

0.01 mmHg ( 25 °C)

assay

≥98.0%

form

powder

color

white to off-white

bp

256-258 °C

mp

98-102 °C

solubility

ethanol: 50 mg/mL, clear, colorless to faintly yellow

fluorescence

λex 337 nm; λem 417 nm (Pyruvic acid derivative)

storage temp.

2-8°C

SMILES string

Nc1ccccc1N

InChI

1S/C6H8N2/c7-5-3-1-2-4-6(5)8/h1-4H,7-8H2

InChI key

GEYOCULIXLDCMW-UHFFFAOYSA-N

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General description

o-Phenylenediamine (OPD) Free Base is a peroxidase substrate suitable for use in enzyme linked immunosorbent assay (ELISA) procedures. The substrate produces a soluble product that is orange-brown in color and can be read spectrophotometrically at 450 nm. The OPD reaction may be stopped with 3N HCl or 3M H2SO4 and read at 492 nm.

Application

o-Phenylenediamine has been used in the microtiter?based assay for hyaluronan quantification. It has also been used in enzyme linked immunosorbent assay (ELISA) for color development.

Packaging

50, 100 g in glass bottle

Caution

May darken in storage.

Signal Word

Danger

Hazard Classifications

Acute Tox. 3 Oral - Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 2 - Eye Irrit. 2 - Muta. 2 - Skin Sens. 1

Storage Class Code

6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 3

Flash Point(F)

276.8 °F - closed cup

Flash Point(C)

136 °C - closed cup

Certificate of Analysis

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Certificate of Origin

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