Acetic Orcein – 100ml (La Cour Stain, UN 2790)

This high‑quality Acetic Orcein Solution is supplied in a 100ml bottle and is commonly used as a biological stain in microscopy and cytogenetics. Also known as La Cour’s stain, it contains orcein dissolved in acetic acid, providing strong and reliable contrast for the observation of chromosomes and other cellular structures. With CAS Number 14400‑62‑0 and classified under UN Number 2790, it is suitable for supervised use in educational laboratories.

Acetic orcein is widely used in school and college biology practicals for preparing slides that show mitosis, chromosome structure, and nuclear material. Its clear staining properties make it an excellent teaching tool for supporting curriculum‑aligned microscopy work.

Key Features

• Premium‑quality Acetic Orcein (La Cour’s stain)
• Supplied in a 100ml bottle
• Ideal for staining chromosomes and nuclear structures
• CAS No.: 14400‑62‑0
• UN Number: 2790
• Provides strong contrast for microscopy and cytology
• Widely used for demonstrating mitosis in plant root tips

Ideal for School Science Lessons

Acetic orcein is a valuable reagent for KS4 (GCSE) and A‑Level biology, particularly in microscopy‑based investigations.

• Perfect for preparing slides to observe mitosis and chromosomes
• Enhances visibility of nuclear material during cell division studies
• Ideal for cytogenetics, onion root tip squashes, and plant tissue staining
• Supports lessons on cell structure, genetics, and inheritance
• Provides strong, clear staining for reliable and repeatable microscopy work

Reliable, effective, and easy to use, this 100ml Acetic Orcein solution is an essential reagent for supporting high‑quality microscopy teaching.

Important Purchasing Information

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