MilliporeSigma
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C8302

Sigma-Aldrich

4-Chloro-1-naphthol solution

For HRP detection on Western Blots

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CAS Number:
604-44-4
MDL number:
MFCD00003974
PubChem Substance ID:
24893047
NACRES:
NA.52

Quality Level

200

grade

for molecular biology

form

liquid

storage temp.

2-8°C

SMILES string

Oc1ccc(Cl)c2ccccc12

InChI

1S/C10H7ClO/c11-9-5-6-10(12)8-4-2-1-3-7(8)9/h1-6,12H

InChI key

LVSPDZAGCBEQAV-UHFFFAOYSA-N

General description

4-Chloro-1-naphthol is a substrate for HRP in a reaction that results in a colored precipitate. It is commonly used for colorimetric detection and visualization of proteins in western blotting.

Application

Suitable for visualizing protein-peroxidase conjugates in western blotting.

Packaging

100 mL in poly bottle

Components

This product contains 0.48 mM 4-chloro-1-naphthol, 50 mM Tris-HCl, 0.2 M NaCl and 17% methanol.

Other Notes

0.48 mM 4-chloro-1-naphthol, 50 mM Tris-HCl, 0.2 M NaCl and 17% methanol.

Principle

Enzymes such as HRP convert 4-Chloro-1-naphthol to a purple-colored precipitate on the blot that is readily visible to the eye.

Pictograms

Exclamation markHealth hazard
GHS07,GHS08

Signal Word

Danger

Hazard Statements

H302 + H312 + H332 - H370

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - STOT SE 1

Target Organs

Eyes

Storage Class Code

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

WGK

WGK 2

Flash Point(F)

163.9 °F - closed cup

Flash Point(C)

73.3 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

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Articles

Colorimetric Detection of Western blot using 4-Chloro-1-Naphthol Solution Protocol

Solution contains 0.48 mM 4-Chloro-1-Naphthol, 50 mM Tris-HCl and 0.2 M NaCl in 17% methanol. This is a substrate solution designed for visualizing horseradish peroxidase conjugates in Western Blotting.

Colorimetric Alkaline Phosphatase and Peroxidase Substrate Detection Systems

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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