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C8302

Sigma-Aldrich

4-Chloro-1-naphthol solution

For HRP detection on Western Blots

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About This Item

CAS Number:
604-44-4
MDL number:
MFCD00003974
UNSPSC Code:
12352200
PubChem Substance ID:
24893047
NACRES:
NA.52

grade

for molecular biology

Quality Level

200

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.

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

Health hazardExclamation mark
GHS08,GHS07

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,Central nervous system

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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Articles

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

This solution is used as a substrate for detecting 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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