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Merck

P8787

Sigma-Aldrich

o-Fenilendiamina dihydrochloride

chromogenic, tablet

Sinónimos:

1,2-Phenylenediamine tablet, OPD, OPD Tablet

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About This Item

Fórmula lineal:
C6H4(NH2)2·2HCl
Número de CAS:
Peso molecular:
181.06
Beilstein/REAXYS Number:
3912045
MDL number:
UNSPSC Code:
12352204
PubChem Substance ID:
NACRES:
NA.83

Nombre del producto

o-Fenilendiamina dihydrochloride, tablet, 4 mg substrate per tablet

Quality Level

form

tablet

mp

258 °C (dec.) (lit.)

storage temp.

2-8°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

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General description

El diclorhidrato de o-fenilendiamina (OPD) es un sustrato cromógeno que puede utilizarse en procedimientos de enzimoinmunoanálisis de absorción (ELISA), ya que utiliza conjugados de peroxidasa de rábano picante. El sustrato rinde un producto final soluble que es de color naranja-marrón y puede leerse en el espectrofotómetro a 450 nm. La reacción del OPD puede detenerse con HCl 3N o H2SO4 3 M y leerse a 492 nm.

Application

o-Phenylenediamine dihydrochloride has been used as a substrate for horseradish-peroxidase-conjugated secondary antibodies in enzyme-linked immunosorbent assay (ELISA).

Reconstitution

Dissolve one tablet in 0.05 M phosphate-citrate buffer, pH 5.0, to the desired concentration (typically an OPD concentration of 0.4 mg/ml is used). Add 40 μl of fresh 30% hydrogen peroxide per 100 ml of substrate buffer solution, immediately prior to use. Tablets are individually packaged in foil packets.

signalword

Warning

Hazard Classifications

Aquatic Chronic 2 - Carc. 2 - Muta. 2 - Skin Sens. 1

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3


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Nitroblue Tetrazolium (NBT) is used with the alkaline phosphatase substrate 5-Bromo- 4-Chloro-3-Indolyl Phosphate (BCIP) in western blotting and immunohistological staining procedures. These substrate systems produce an insoluble NBT diformazan end product that is blue to purple in color and can be observed visually.

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