Description

Astra Blue For Microscopy is a high-purity, specialized biological stain designed for precise histological and cytological applications. Its consistent quality and performance are critical for achieving reliable, high-contrast staining in diagnostic and research microscopy. This product is essential for professionals in life sciences, clinical pathology, and academic research who require dependable reagents for cell structure visualization.

Application

• Histological Staining: Used as a counterstain or specific dye in tissue section protocols to differentiate cellular components under a light microscope.
• Cytological Analysis: Employed in smear preparations for staining blood cells, bone marrow, or other cytological specimens.
• Microbiological Staining: Applicable in specialized staining techniques for certain bacteria or microbial structures.
• Botanical Microscopy: Useful for staining plant tissue sections to study cell walls and other structures.
• Educational and Research Laboratories: A standard reagent in teaching and investigative protocols across universities and R&D facilities.
• Dye Intermediate: Can serve as a precursor or intermediate in the synthesis of other specialized dyes and pigments.

Basic Information

Product Name	Astra Blue For Microscopy
CAS No.	82864-57-1
Molecular Formula	C46H54N4O6S2
Molecular Weight	823.08 g/mol
Synonyms	Astrablau; Astra Blue; C.I. 51180; Astra Blue 6GLL; Astra Blue FFR; Astra Blue for Microscopy; Direct Blue 1; Pontamine Blue 4BX
EINECS	Contact for details

Quality Control

Our Astra Blue For Microscopy is manufactured and tested to meet the stringent requirements for biological staining reagents. Each batch undergoes rigorous quality testing to ensure compliance with industry standards for purity, color value, and performance in microscopy applications. Certificates of Analysis (COA) detailing identity, purity, and suitability for use are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after use to prevent absorption of atmospheric moisture, which can affect performance.

Specification

Item	Specification
Appearance	Dark blue to blue-black powder
Identification (IR)	Conforms to structure
Assay (Dye Content)	≥ 85%
Solubility	Soluble in water; sparingly soluble in ethanol
Loss on Drying	≤ 5.0 %
Ash Content	≤ 1.0 %
Suitability for Staining	Passes test

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