Description

Neutral Red 2Gl is a vital synthetic dye belonging to the phenazine class, widely recognized for its role as a biological stain and pH indicator. Its consistent quality and reliable performance make it a critical component for research and industrial processes requiring precise colorimetric analysis. This product is essential for professionals in the biotechnology, histology, and analytical chemistry sectors who depend on high-purity reagents for accurate results.

Application

• Biological Staining: Used as a vital stain for differentiating live and dead cells in microbiology and cell culture applications.
• Histology and Cytology: Employed in staining protocols for tissue sections and blood smears to enhance microscopic visualization.
• pH Indicator: Functions as a redox and pH indicator in various analytical and biochemical assays, changing color within a specific pH range.
• Viability Assays: A key component in standardized cytotoxicity and cell proliferation tests (e.g., Neutral Red Uptake Assay).
• Research Reagent: Serves as a critical reagent in life science research for studying lysosomal function and cell membrane integrity.
• Industrial Dye: Finds application in specialized coloring processes for non-textile materials where its specific color properties are required.

Basic Information

Product Name	Neutral Red 2Gl
CAS No.	12239-05-3
Molecular Formula	C15H17ClN4
Molecular Weight	288.78 g/mol
Synonyms	Neutral Red Chloride; Toluylene Red; Basic Red 5; C.I. 50040; 3-Amino-7-dimethylamino-2-methylphenazine hydrochloride; Neutral Red (indicator grade); Neutral Red, Biological Stain
EINECS	235-456-3

Quality Control

Our Neutral Red 2Gl is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity suitable for sensitive biological applications. Each lot is tested against rigorous in-house specifications, which typically include identity confirmation, purity assay, and impurity profiling. A Certificate of Analysis (COA) detailing these results is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Keep away from incompatible materials and sources of ignition.

Specification

Item	Specification
Appearance	Dark green to brownish-green powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Solubility	Soluble in water and ethanol
pH (1% Solution)	6.8 - 8.0
Heavy Metals (as Pb)	≤ 20 ppm

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