Description

Wright Stain CAS NO 51938-72-8 is a high-purity, ready-to-use histological stain solution formulated for precise and consistent results in laboratory diagnostics. This product is essential for achieving clear differentiation of blood cells and malarial parasites in thin blood films, a critical step in hematological analysis and parasitology. It is primarily needed by clinical laboratories, research institutions, and pharmaceutical quality control departments for routine staining and specialized diagnostic procedures.

Application

• Hematology and Clinical Diagnostics: Standard staining for peripheral blood smears to differentiate leukocytes (neutrophils, eosinophils, basophils, lymphocytes, monocytes), erythrocytes, and platelets.
• Parasitology: Detection and identification of malarial parasites (*Plasmodium* spp.) and other blood-borne parasites in Giemsa-stained thin and thick blood films.
• Bone Marrow Examination: Staining of bone marrow aspirates and trephine biopsy specimens for the assessment of hematopoiesis and diagnosis of blood disorders.
• Veterinary Pathology: Used in veterinary clinics and diagnostic labs for animal blood film analysis.
• Microbiological Research: Staining of certain bacteria and cellular components in research settings.
• Quality Control in Dye Manufacturing: As a reference standard for the production and quality assurance of other Romanowsky-type stains.

Basic Information

Product Name	Wright Stain
CAS No.	51938-72-8
Molecular Formula	Mixture
Molecular Weight	N/A (Prepared Solution)
Synonyms	Wright's Stain; Wright-Giemsa Stain; Romanowsky-Wright Stain; Polychrome Methylene Blue Eosinate; Eosin-Methylene Blue Solution; Hematological Wright Stain; Diagnostic Wright Stain
EINECS	Contact for details

Quality Control

Our Wright Stain is manufactured under strict quality protocols to ensure batch-to-batch consistency and diagnostic reliability. Each lot is tested for staining performance, pH, and spectral characteristics to meet the requirements for clinical laboratory use. Certificates of Analysis (COA) detailing these parameters are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store at controlled room temperature (15-25°C). Due to the presence of strong acid/organic solvent components and high volatility, ensure proper ventilation in storage areas and keep away from open flames and heat sources.

Specification

Item	Specification
Appearance	Clear, deep purple-blue solution
Identification (IR)	Conforms to standard
Staining Performance	Produces characteristic nuclear and cytoplasmic staining of control blood film
pH	6.4 - 7.0
Absorbance Ratio (A650/A525)	Within specified range for lot consistency
Foreign Particles	Free from visible particulate matter

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