Product Name: Azure II
CAS No.: 37247-10-2
Molecular Formula: C16H18ClN3S · C15H16ClN3S
Molecular Weight: 625.68
Appearance: Bottle green powder
Biological dyeing test: Pass test
Ignition residue (SO4): 23.5% max
Package: 25kg/ fibre drum

Product Description:
Azure II is a synthetic basic dye belonging to the thiazine class, chemically known as 3-Amino-7-dimethylamino-2-methylphenothiazin-5-ium chloride. This blue-green biological stain is widely used in microscopy for chromatin and nucleic acid visualization.

Key Features:
- Synthetic basic thiazine dye
- Blue-green color
- Cationic properties for acidic cellular component binding
- Metachromatic properties
- Excellent staining for microscopy

Applications:
1. Medical Diagnostics: Component of polychromatic blood stains
2. Hematology: Differential white blood cell counting
3. Parasitology: Malaria parasite identification in peripheral blood smears
4. Cytogenetics: Chromosome banding studies
5. Histology: Staining of neural tissues and certain microorganisms
6. Flow Cytometry: Serves as a counterstain for nuclei
7. Immunocytochemistry: Nuclear counterstain
8. Special Stains: Mast cells and cartilage components in connective tissue studies

Usage:
- Essential for blood smear staining (Romanowsky-type stains)
- Used with eosin in Wright-Giemsa staining
- Produces consistent, reproducible results
- Valuable for diagnostic pathology

Quality: High-purity biological stain meeting biological dyeing test requirements.

Packaging: 25kg/fibre drum.

Storage: Store in a cool, dry place away from light and moisture.

This product is a premium biological stain for medical diagnostic and research applications.