P9029

Sigma-Aldrich

o-Phenylenediamine

Peroxidase substrate, ≥98.0%, powder

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

Quality Level

vapor density

3.7 (vs air)

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

RIDADR

UN 1673 6.1 / PGIII

WGK Germany

WGK 3

Flash Point(F)

276.8 °F - closed cup

Flash Point(C)

136 °C - closed cup

Expression of hyaluronan synthase 2 or hyaluronidase 1 differentially affect the growth rate of transplantable colon carcinoma cell tumors
Jacobson A, et al.
International Journal of Cancer. Journal International Du Cancer, 102(3), 212-219 (2002)
Development of a chicken-derived antivenom against the taipan snake (Oxyuranus scutellatus) venom and comparison with an equine antivenom
Navarro D, et al.
Toxicon, 120(3), 1-8 (2016)
Bothrops asper envenoming in cattle: Clinical features and management using equine-derived whole IgG antivenom
C.Rodriguez, et al.
The Veterinary Journal, 207(, pages=), 160-163 (2016)
Patrick A Julien et al.
Beilstein journal of organic chemistry, 13, 2160-2168 (2017-11-09)
We provide the first in situ and real-time study of the effect of milling frequency on the course of a mechanochemical organic reaction conducted using a vibratory shaker (mixer) ball mill. The use of in situ Raman spectroscopy for real-time...
Hai-Long Wang et al.
Acta tropica, 137, 58-66 (2014-05-13)
Nasal vaccination is an effective therapeutic regimen for preventing certain infectious diseases. The mucosal immune response is important for resistance to Toxoplasma gondii infection. In this study, we evaluated the immune responses elicited in BALB/c mice by nasal immunisation with...
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