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Carbol Fuchsin Kinyoun
Carbol Fuchsin Kinyoun (Product Code: SCI-2709/033) is a laboratory-grade primary stain used for acid-fast staining of bacteria in microbiology teaching and research laboratories. The concentrated solution of phenol and basic fuchsin permeates the lipoid capsule of acid-fast organisms so that they resist decolorisation by acid alcohol and stay red on the slide. It is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India, for microbiology staining work.
Key Details
| Parameter | Detail |
|---|---|
| Composition | Concentrated phenol and basic fuchsin solution |
| Grade | Laboratory grade |
| Action | Permeates the lipoid capsule of acid-fast organisms, rendering them resistant to acid-alcohol decolorisation |
| Hazards | Flammable, toxic |
| Shelf life | Shelf life depends on the chemical, its grade and storage conditions; ask us for the expiry date of the batch you are quoted |
| Product code | SCI-2709/033 |
| Supplied by | Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India |
What Is Kinyoun Carbol Fuchsin Used For?
Kinyoun carbol fuchsin is the primary stain in the Kinyoun acid-fast method, often called the cold method because the smear is not heated during staining. The phenol helps the fuchsin dye penetrate the waxy, lipid-rich cell walls of acid-fast bacteria. After staining, the slide is decolourised with acid alcohol and counterstained, usually with methylene blue: acid-fast cells hold the red dye while other cells lose it and take up the blue.
In teaching labs it lets students compare acid-fast and non-acid-fast organisms and understand why cell-wall chemistry matters. Because the solution is flammable and toxic, wear gloves and eye protection, work in a well-ventilated area away from flames, and keep the bottle tightly closed. It belongs in any staining kit for microbiology practicals in India alongside Gram-stain reagents.
Supplier
Jain Scientific Equipments Private Limited, which trades as ScienceLab, supplies Carbol Fuchsin Kinyoun to microbiology and biology laboratories as a laboratory-grade reagent. It can be quoted together with staining jars, slides, microscopes and safety items, so a college can equip an acid-fast practical through one supplier. Please ask us for pack sizes, batch details and any safety information you need for the chemical. Company profile.
Related Laboratory Equipment
Items used with Carbol Fuchsin Kinyoun in an acid-fast staining practical:
- Coplin Staining Jar — holds slides upright while they are stained and rinsed.
- Rack Staining Slides Horizontal — supports slides over a sink for flood staining.
- Plain Slides — glass slides for preparing bacterial smears.
- Immersion Oil, 25ml — needed to view stained bacteria under the oil-immersion objective.
- Safety Goggles — eye protection when handling the flammable, toxic stain.
Browse Laboratory Equipment for more microbiology supplies.
Frequently Asked Questions
What is Carbol Fuchsin Kinyoun used for?
Carbol Fuchsin Kinyoun is used as the primary stain in Kinyoun acid-fast staining. It permeates the lipoid capsule of acid-fast organisms so they resist decolorisation by acid alcohol and remain red, while non-acid-fast cells lose the stain.
Does Carbol Fuchsin Kinyoun need heating?
No, the Kinyoun method using Carbol Fuchsin Kinyoun is generally performed without heating the slide, which is why it is called the cold acid-fast method. The concentrated phenol in the solution helps the dye penetrate the cell wall instead.
What grade is Carbol Fuchsin Kinyoun?
Carbol Fuchsin Kinyoun is supplied in laboratory grade, suitable for teaching and routine laboratory staining. It is a concentrated phenol and basic fuchsin solution, so it should be stored and handled as a hazardous chemical.
What safety precautions apply to Carbol Fuchsin Kinyoun?
Carbol Fuchsin Kinyoun is flammable and toxic. Wear gloves and eye protection, avoid skin contact and inhalation, work in a well-ventilated space away from open flames, and store the bottle tightly closed out of reach of students when not in use.
What is the shelf life of Carbol Fuchsin Kinyoun?
The shelf life of Carbol Fuchsin Kinyoun depends on the chemical, its grade and storage conditions. Ask us for the expiry date of the batch you are quoted, and keep the solution tightly closed and away from heat.
Who supplies Carbol Fuchsin Kinyoun?
Carbol Fuchsin Kinyoun is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, Haryana, India. The company supplies laboratories in India and international markets and can combine the stain with slides, staining jars and microscopes in one quotation.
Request a Quote
For Carbol Fuchsin Kinyoun, tell us the quantity you need through the contact page or add it to the enquiry cart. We will confirm pack size and batch details with the quotation.
Last updated: 24 September 2026
