Preservatives(food)
Flavor Enhancers
Acidulants
Sweeteners
Antioxidants
Colorants(food)
Nutraceutical Ingredients (food)
Nutrient Supplements
Emulsifiers
Collectors
Dust Suppressants
Explosives and Blasting Agents
Flocculants and Coagulants
Frothers
Leaching Agents
pH Modifiers
Precious Metal Extraction Agents
Antioxidants(plastic)
Colorants (Pigments, Dyes)
Fillers and Reinforcements
Flame Retardants
Monomers
Plasticizers
Polymerization Initiators
Stabilizers (UV, Heat)
Antifoaming Agents
Chelating Agents
Coagulants and Flocculants
Corrosion Inhibitors
Disinfectants and Biocides
Oxidizing Agents
pH Adjusters
Scale Inhibitors( water)
Antioxidants(cosmetic)
Emollients
Fragrances and Essential Oils
Humectants
Preservatives
Surfactants(cosmetic)
Thickeners
UV Filters
Fertilizers
Soil Conditioners
Plant Growth Regulators
Animal Feed Additives
Biostimulants
Pesticides (Herbicides, Insecticides, Fungicides)
Active Pharmaceutical Ingredients (APIs)
Excipients
Solvents(pharmaceutical)
Antibiotics
Antiseptics and Disinfectants
Vaccine Adjuvants
Nutraceutical Ingredients (pharmaceutical)
Analgesics & Antipyretics
Analytical Reagents
Solvents(lab)
Chromatography Chemicals
Spectroscopy Reagents
microbiology-and-cell-culture-reagents
Molecular Biology Reagents
Biochemical Reagents
Inorganic and Organic Standards
Laboratory Safety Chemicals
Specialty Laboratory Chemicals(Special Laboratory Equipment)
Demulsifiers
Hydraulic Fracturing Fluids
Scale Inhibitors(oil)
Surfactants(oil)
Drilling Fluids
Dyes and Pigments
Bleaching Agents
Softening Agents
Finishing Agents
Antistatic Agents
Admixtures
Waterproofing Agents
Sealants and Adhesives
Curing Compounds
Concrete Repair Chemicals
Anti-Corrosion Coatings
Surfactants(cleaning)
Builders
Enzymes
Solvents (Cleaning)
Fragrances
Electronic Chemicals
Catalysts
Lubricants
Photographic Chemicals
Refrigerants
Automotive chemicals
Pyrotechnic Chemicals
Biodegradable Surfactants
Bio-based Solvents
Renewable Polymers
Carbon Capture Chemicals
Wastewater Treatment Chemicals
Pigments
Solvents(paint)
Specialty Coatings
Binders/Resins
Additives
Driers
Anti-Corrosion Agents
Functional Coatings
Application-Specific Coatings
Leavening Agents
Dough Conditioners
Flour Treatments
Fat Replacers
Decoratives
Preservatives(baking)
Plasticizers & Softeners
Reinforcing Agents
Adhesion Promoters
Vulcanizing Agents
Antidegradants
Blowing Agents
Fillers & Extenders
Accelerators & Retarders
Phenol Red Extra Pure
$ 17.20
Phenol Red Extra Pure is a highly refined pH indicator dye widely used in biological and chemical laboratories. Appearing as a reddish crystalline powder, it changes color based on pH—yellow in acidic environments (pH < 6.8), red in neutral to slightly basic conditions (around pH 7.4), and fuchsia in more alkaline solutions (pH > 8.2).
This Extra Pure grade is particularly suited for cell culture media, where it helps monitor pH fluctuations during cell growth and metabolic activity. It is also employed in analytical chemistry, water quality testing, and titrations. Phenol Red is stable under normal storage conditions but should be kept in a dry, tightly sealed container away from strong acids or bases. Proper lab safety protocols—such as wearing gloves and goggles—are recommended when handling the powder or concentrated solutions.
Phenol Red Extra Pure
PRIMARY USES
- Serves as a pH indicator in cell culture media, showing color changes from yellow (acidic) to red (neutral) to fuchsia (alkaline).
- Widely used in microbiology and biochemistry to monitor pH changes due to microbial activity.
- Integral component in cell and tissue culture, helping detect contamination and metabolic activity.
- Utilized in aquarium and pool water testing kits to measure pH levels.
- Applied in clinical diagnostics, especially in phenol red thread tests for eye tear production.
SECONDARY USES
- Employed in educational labs for demonstrating acid-base reactions and pH scales.
- Occasionally used in urine analysis kits as a pH indicator.
- Used in formulation of test kits for enzymes or bacteria that alter pH in solution.
- Functions as a colorimetric marker in various experimental protocols.
- May be used in toxicology studies as a tracer to observe chemical exposure effects in cultures.
1. Basic Identification Attributes
- Chemical Name: Phenol Red
- CAS Number: 143-74-8
- HS Code: 3822.00.00
- Molecular Formula: C₁₉H₁₄O₅S
- Synonyms:
- Phenolsulfonphthalein
- PSP
- Sulfonphthalein
- C.I. 45350
2. Physical & Chemical Properties
- Physical State: Solid (powder or crystalline form)
- Color & Odor: Reddish to dark purple powder; odorless
- Boiling Point: Decomposes before boiling
- Melting Point: ~280 °C (with decomposition)
- Density: ~1.36 g/cm³
- Solubility:
- Slightly soluble in water
- Soluble in alcohol and alkaline solutions
- pH Range (Indicator Use):
- Yellow at pH < 6.4
- Red at pH > 8.2
- Vapor Pressure: Negligible
- Flash Point: Not applicable (non-flammable solid)
- Autoignition Temperature: Not readily available
- Viscosity: Not applicable
3. Safety & Hazard Attributes
- Hazard Class (GHS Classification):
- Not classified as hazardous under GHS for general lab use
- May cause mild irritation to skin or eyes with prolonged contact
- NFPA Ratings:
- Health: 1
- Flammability: 1
- Reactivity: 0
- Exposure Limits: Not established (low toxicity)
- Reactivity:
- Stable under normal conditions
- Incompatible with strong oxidizing agents
4. Storage & Handling Attributes
- Storage Conditions:
- Store in a cool, dry, and well-ventilated place
- Avoid moisture and direct sunlight
- Incompatible Materials:
- Strong oxidizers and strong acids
- Container Type: Tightly sealed plastic or glass containers
- Shelf Life & Expiration Date: 2–3 years under proper storage
- Special Handling Requirements:
- Use gloves and protective eyewear
- Avoid inhalation of dust
5. Regulatory & Compliance Attributes
- Regulatory Status:
- Listed under TSCA and REACH
- Not considered a hazardous chemical under OSHA regulations
- Transportation Restrictions:
- Not classified as hazardous for transport
- Waste Disposal Method:
- Dispose of in accordance with local, regional, and national regulations
- Dilute solutions may be disposed via standard wastewater (verify with local authority)
6. Environmental & Health Impact
- Ecotoxicity:
- Low toxicity to aquatic life in small quantities
- Persistence in Environment:
- Degradable, but specific rates vary with environmental conditions
- Carcinogenicity/Mutagenicity:
- Not listed as carcinogenic or mutagenic by IARC or OSHA
- Biodegradability:
- Generally considered biodegradable in natural conditions
SAFETY PRECAUTIONS
Personal Protective Equipment (PPE):
- Wear lab coats, chemical-resistant gloves (e.g., nitrile), and protective safety goggles.
- Use a dust mask or work in a fume hood to avoid inhalation of fine particles.
Handling:
- Avoid contact with skin, eyes, and clothing.
- Prevent dust formation and avoid breathing dust.
- Wash hands thoroughly after handling.
Storage:
- Store in a tightly sealed container in a cool, dry, and well-ventilated area.
- Protect from direct sunlight and moisture.
- Keep away from strong oxidizing agents.
FIRST AID MEASURES
Inhalation:
- Move the person to fresh air.
- Seek medical attention if symptoms such as coughing or difficulty breathing occur.
Skin Contact:
- Wash affected areas with plenty of water and soap.
- Remove contaminated clothing.
- Seek medical advice if irritation develops.
Eye Contact:
- Rinse immediately with plenty of water for several minutes.
- Remove contact lenses if it is easy to do so.
- Continue rinsing and seek medical attention if irritation persists.
Ingestion:
- Rinse mouth with water.
- Do not induce vomiting.
- Seek medical attention if symptoms occur.
FIRE FIGHTING MEASURES
Flammability:
- Not highly flammable but can burn if involved in fire.
Extinguishing Media:
- Use dry chemicals, CO₂, or foam.
- Water spray can be used to cool exposed containers.
Hazardous Combustion Products:
- May release carbon monoxide, carbon dioxide, and sulfur oxides upon combustion.
Firefighter Protection:
- Wear full protective gear and self-contained breathing apparatus (SCBA).
- Avoid inhaling combustion fumes.
Related products
Magnesium Carbonate Extra Pure
Magnesium Carbonate Extra Pure is a high-purity, white powder valued for its excellent absorbent and antacid qualities. It is commonly used in pharmaceuticals as a magnesium supplement or antacid, and in food applications as a drying agent, anti-caking agent, or acidity regulator. In the cosmetics and personal care industry, it functions as a filler and a bulking agent in powders and creams. It is also employed in laboratory settings for analytical applications due to its consistent chemical composition. Its high absorbency and stability make it useful in rubber, ceramics, and sports grip products as well.
Magnesium Carbonate Light Extra Pure
Magnesium Carbonate Light Extra Pure is a fine, white, odorless powder known for its excellent absorbent, drying, and antacid properties. It is widely used in pharmaceutical formulations, cosmetics, food additives, and laboratory reagents. Its “light” form refers to its low bulk density, making it ideal for applications requiring a fluffy, easily dispersible powder. In personal care products, it serves as a filler and opacifier, while in pharmaceuticals, it acts as a mild antacid and magnesium supplement. Its high purity ensures consistent performance in analytical procedures and specialty chemical processes.
Magnesium Chloride Extra Pure
Magnesium Chloride Extra Pure is a highly soluble, refined chemical compound commonly used for its excellent hygroscopic and electrolyte properties. In laboratory and analytical settings, it is valued for preparing magnesium-based solutions and as a reagent in various chemical reactions. In pharmaceuticals, it serves as a magnesium supplement, aiding in nerve function and muscle health. It is also used in cosmetics and personal care products for its skin-conditioning benefits. Additionally, it finds applications in textile processing, dust control, and de-icing formulations, where its purity ensures minimal impurities in sensitive applications.
Manganese Sulphate Extra Pure
Manganese Sulphate Extra Pure is a highly refined, pale pink crystalline compound widely valued for its use in both laboratory and industrial applications. In the lab, it serves as a reliable source of manganese ions in analytical chemistry, synthesis of manganese-based catalysts, and as a micronutrient in biological research. Industrially, it plays a crucial role in fertilizers, where it addresses manganese deficiency in crops, and in animal feed formulations. Due to its high solubility and purity, this compound is also used in electroplating, ceramics, and pigment production, making it a versatile and essential chemical in many scientific and manufacturing settings.
Manganous Dihydrogen Phosphate Extra Pure
Manganous Dihydrogen Phosphate Extra Pure is a high-purity, white to pale pink crystalline compound composed of manganese and phosphate ions. It is primarily used in analytical chemistry, research laboratories, and specialized industrial processes where a precise and reliable manganese source is required. This compound is valued for its solubility in water and its role as a reagent in studies involving nutrient uptake, coordination chemistry, and phosphate-related reactions. Additionally, it finds niche applications in fertilizers and micronutrient formulations, particularly in controlled agricultural studies. Its extra pure grade ensures minimal contamination, making it suitable for sensitive experiments and formulations.
Marble Chips Extra Pure
Marble Chips Extra Pure are high-grade, naturally occurring calcium carbonate fragments that have been carefully processed to ensure exceptional purity. These white or off-white chips are widely used in laboratory experiments, especially in demonstrations involving acid-carbonate reactions where the release of carbon dioxide is observed. Beyond educational and research use, they also serve as a buffering agent, filtration medium, and mild abrasive in various industrial applications. Due to their chemical stability and high calcium content, marble chips are ideal for use in controlled environments where contaminants must be minimized.
Menthol Crystals Extra Pure
Menthol Crystals Extra Pure are colorless to white, needle-like crystals derived from peppermint or other mint oils and refined to the highest purity. Known for their strong, refreshing minty aroma, they are widely used in pharmaceutical, cosmetic, and personal care formulations. These crystals provide a cooling sensation on the skin and mucous membranes, making them a common ingredient in balms, liniments, throat lozenges, and inhalants. In laboratories, menthol crystals are also used in sensory studies and product development. Their purity ensures consistent performance and minimal interference in sensitive formulations.
Methyl Orange Disodium Salt Extra Pure
Methyl Orange Disodium Salt Extra Pure is a high-purity pH indicator commonly used in titrations and analytical chemistry to determine acidity levels. It exhibits a sharp color change from red in acidic environments to yellow in alkaline conditions, typically within the pH range of 3.1 to 4.4. This disodium salt form ensures excellent solubility in water, making it especially reliable for use in aqueous solutions. Its stability and sensitivity make it ideal for laboratory applications involving strong acid–base reactions, particularly in titrations of mineral acids. Methyl Orange Disodium Salt Extra Pure is a trusted choice for consistent and accurate results in both educational and professional lab settings.
