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P1526

o-Phenylenediamine dihydrochloride

peroxidase substrate, chromogenic, solid

Synonym(s):

OPD

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About This Item

Linear Formula:
C6H4(NH2)2·2HCl
CAS Number:
615-28-1
Molecular Weight:
181.06
NACRES:
NA.83
PubChem Substance ID:
24898213
UNSPSC Code:
12352204
EC Number:
210-418-7
MDL number:
MFCD00012966
Beilstein/REAXYS Number:
3912045
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Product Name

o-Phenylenediamine dihydrochloride, peroxidase substrate

Quality Level

300

form

solid

color

white to off-white

mp

258 °C (dec.) (lit.)

storage temp.

−20°C

SMILES string

Cl[H].Cl[H].Nc1ccccc1N

InChI

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

InChI key

RIIWUGSYXOBDMC-UHFFFAOYSA-N

General description

o-Phenylenediamine dihydrochloride (OPD) is a chromogenic substrate that can be used in enzyme-linked immunosorbent assay (ELISA) procedures as it utilizes horseradish peroxidase conjugates. The substrate produces a soluble end product that is orange-brown 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 dihydrochloride has been used as a peroxidase substrate in enzyme-linked immunosorbent assay (ELISA) procedures.

Disclaimer

May darken in storage.

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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

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

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

Deleterious substance

pdsc

Substances Subject to be Indicated Names

ishl_indicated

Substances Subject to be Notified Names

ishl_notified

P1526-50G:4.548173205359E12 + P1526-25G:4.548173205342E12 + P1526-10G:4.548173205328E12 + P1526-1KG:4.548173205335E12 + P1526-100G:4.548173205311E12

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Certificates of Analysis (COA)

Lot/Batch Number
029K5304
088K5300
121K5311
104H5006
101K5322

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