Description

Giemsa Stain is a vital histological and cytological dye, renowned for its exceptional ability to differentially stain cellular components, particularly chromatin and certain parasites. This compound is essential for producing high-contrast, diagnostically critical images in microscopic analysis. It is a fundamental reagent for clinical diagnostics, hematology, and life science research, enabling the detailed examination of blood films and tissue sections.

Application

• Malaria Diagnosis: The definitive application for staining Plasmodium species (malaria parasites) in thick and thin blood smears for microscopic identification.
• Hematological Analysis: Routine staining of peripheral blood films and bone marrow aspirates for the morphological assessment of blood cells (e.g., differential white blood cell counts).
• Cytogenetics: Used in G-banding (Giemsa banding) techniques for chromosomal analysis and karyotyping.
• Histopathology: Staining of tissue sections to visualize bacteria (e.g., in Helicobacter pylori detection) and other microorganisms.
• Parasitology: Identification of other blood-borne parasites such as Trypanosoma and Babesia.
• Biological Research: General staining of cells and chromosomes in microbiology, cell biology, and genetic research laboratories.

Basic Information

Product Name	Giemsa Stain
CAS No.	51811-82-6
Molecular Formula	Mixture (Primarily Azure B, Methylene Blue, Eosin)
Molecular Weight	N/A (Mixture)
Synonyms	Giemsa's Stain; Romanowsky-Giemsa Stain; Azure B-Eosin-Methylene Blue Mixture; Giemsa Solution; Giemsa's Azure Methylene Blue; Giemsa Blood Stain; Diagnostic Giemsa Stain
EINECS	Contact for details

Quality Control

Our Giemsa Stain is manufactured under a rigorous quality management system. Each batch is tested to ensure consistent staining performance, spectral properties, and purity of its constituent dyes. We provide comprehensive Certificates of Analysis (COA) detailing identity, assay, and performance in standardized staining protocols. The product is suitable for in-vitro diagnostic (IVD) and research use.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). The product is hygroscopic (moisture-sensitive); ensure the container is sealed after each use to prevent absorption of atmospheric moisture which can affect performance.

Specification

Item	Specification
Appearance	Dark blue to violet powder or granules
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	Meets defined ratio of Azure B, Methylene Blue, and Eosin
Solubility	Completely soluble in methanol and glycerol
Staining Performance	Produces characteristic purple chromatin and pink cytoplasm in control blood smears
Loss on Drying	≤ 5.0%
Residue on Ignition	≤ 1.0%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.