Title Description
REF No 5017
Purpose It is used to detect acid-resistant bacteria by staining.
Ingredients Fuchsin, Phenol, Ethanol, Methanol, Hydrochloric acid, Methylene Blue, Tween 80, Potassium hydroxide.
Working Principle Mycobacterium, nocardia and corynebacterium do not have taychoic acid in their walls. About 35% of the wall is composed of lipids and especially mycolic acid. It is hypothesised that this feature of the wall increases the resistance of the bacterial wall against acid and alcohol. They do not easily release the stain they have taken up, i.e. they retain the Fuchsin stain. Since the wall of the bacilli is resistant to acidic alcohol, the dye remains in the bacilli.
Warnings, Precautions, Recommendations Highly flammable liquid and vapour. Harmful if swallowed. Causes severe skin burns and eye damage. Suspected of causing genetic damage.
Application 1.Cover the preparation with "A-Carbol Fuchsin Solution ZN".
2.Heat from the bottom for not less than 5 minutes.
3.Wash with distilled water for 15 seconds.
4.Cover the preparation with "B-Acid Alcohol Solution". After 15 seconds, shake the slide to remove the reagent.
5.Wash with distilled water for 15 seconds.
6.Cover the preparation with "C-Methylene Blue Solution". After 30 seconds, shake the slide to remove the reagent.
7.Wash with distilled water for 15 seconds.
8.Air dry, preferably on a heated plate. Examine under a microscope.
Theoretical Results
Acid Resistant Microorganisms Red
Other Microorganisms Blue
Back Areas Blue

Related Media
Shelf Life 24 months
Shelf Life After Opening the Lid 3 months
Storage Temperature 15/25°C
pH (at 25°C) C-Methylene Blue Solution; 10,7
Transportation Information Carriage/shipment by road (ADR/RID) - UN1993, Methanol/Ethanol, 3, II
Carriage/shipment by sea (IMDG) - UN1993, Methanol/Ethanol, 3, II
Carriage/shipment by air (ICAO/IATA) - UN1993, Methanol/Ethanol, 3, II
Ordering and Packaging Information
Order No Unit Volume Packaging Type Quantity in a Box Quantity in a Parcel
445017050050 Piece 50 mL 50 ml, White Bottle with HDPE Dropper 1 kit 20 kits
445017050250 Piece 250 mL 250 ml, PP White Bottle with Dropper 1 kit 15 kits
445017020500 Piece 500 mL 500 ml, HDPE White Bottle 28 mm 1 kit 6 kits

Keywords acid-fast stain, Ziehl-Neelsen stain bacteria, asidofilik, Ziehl Neelsen, asit-fast, carbol-fuksin, aside dirençliler, ZN, Friedrich Neelsen, methylene blue