MilliporeSigma
All Photos(1)

Documents

1.01641

Sigma-Aldrich

Congo Red staining kit

suitable for detection, according to Highman

Sign Into View Organizational & Contract Pricing

feature

according to Highman

Quality Level

IVD

for in vitro diagnostic use

application(s)

clinical testing
diagnostic assay manufacturing
hematology
histology

detection

storage temp.

15-25°C

Related Categories

General description

The Congo Red staining kit - Kit for the detection of amyloid acc. to Highman, is used for human-medical cell diagnosis and serves the purpose of the histological investigation of sample material of human origin for example histological sections of e. g. the kidney, the intestine, or the liver.
This Congo red staining kit contains all the reagents necessary for staining amyloid in histological tissues. Amyloid is a homogenous structure made up of protein fibrils (each between 8 and 15 nm in diameter) that can be stained eosinophilically, which e. g. in the case of amyloidosis forms deposits in the intercellular space. All deposits of amyloid contain similar protein fibrils that are resistant to the body′s natural defence mechanisms and that once they have formed cannot be eliminated.The Congo red staining principle is based on the formation of hydrogen bridge bonds with the carbohydrate component of the substrate. Congo red is an anionic dye and is capable of depositing itself in amyloid fibrils, which then exhibit a conspicuous dichroism under polarized light. The tissue stained with Congo red appears orange-red under the transmitted-light microscope; under polarized light, however, the amyloid deposits show up as brilliant green double-refraction images against a dark background. Other structures also stained by Congo red, e. g. collagen, however are not visualized under polarized light. Staining may be technically difficult when the paraffin sections used are too thin (<5 μm) or when the tissue is too strongly over-stained.
The kit is sufficient for up to 50 applications. This product is registered as IVD and CE marked. For more details, please see instructions for use (IFU). The IFU can be downloaded from this webpage.

Application

Kit for the detection of amyloid acc. to Highman

Analysis Note

Suitability for microscopypasses testAmyloidpink to red; in polarized ligt green metachromasisNucleidark blueConnective tissuelight red

signalword

Danger

Hazard Classifications

Carc. 1B - Eye Irrit. 2 - Flam. Liq. 2 - Met. Corr. 1 - Skin Irrit. 2

Storage Class

3 - Flammable liquids

wgk_germany

WGK 3


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’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).

Example:

T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service