Description
Specifications Table
Product Name – NEUTRAL RED TS ACC.TO USP
Quantity/Pack Size – 125 ml
Form – Liquid solution
Grade – USP
Application – pH indicator, microbial staining
Product Overview
Neutral Red TS (To Solution) USP is a high-purity, water-soluble dye widely used in microbiology and analytical laboratories for its reliable pH-indicating properties. This synthetic dye transitions from red to yellow between pH 6.8 and 8.0, making it ideal for differentiating bacterial growth media and staining applications. The USP-grade formulation ensures consistent performance with minimal impurities, critical for accurate test results. The solution is pre-dissolved in purified water, eliminating the need for manual preparation and ensuring uniform concentration. Its stability under standard lab conditions makes it a preferred choice for routine staining protocols. The product adheres to strict USP monograph specifications, guaranteeing batch-to-batch consistency. Neutral Red TS is compatible with most aqueous systems and can be directly incorporated into agar or broth media without precipitation. The solution’s low toxicity profile allows for safe handling under standard laboratory practices.
FAQs
1. What is the shelf life of Neutral Red TS USP after opening?
The solution remains stable for 12 months when stored at room temperature in its original container, protected from light. Discard if discoloration or precipitation occurs.
2. Can this be used for Gram staining procedures?
Neutral Red TS is not a primary stain for Gram staining but serves as a counterstain in modified protocols for differentiating bacterial cell walls.
3. How does this differ from Neutral Red powder?
This is a pre-dissolved solution standardized to USP specifications, offering convenience and eliminating weighing errors associated with powder formulations.
4. Is this compatible with alcohol-based fixatives?
The dye may precipitate in concentrations above 20% ethanol. For alcohol-based protocols, dilute the solution or use alternative fixatives.
5. What safety precautions are recommended during handling?
Wear nitrile gloves and safety goggles. Avoid inhalation of vapors and work in a well-ventilated area, though the solution is non-volatile at room temperature.
