The global phenol red market is experiencing steady growth, driven by rising demand across pharmaceutical, biotechnology, and diagnostic applications—particularly as a pH indicator in cell culture media such as Dulbecco’s Modified Eagle Medium (DMEM) and other sterile biological solutions. According to Grand View Research, the global cell culture market, a primary end-use segment for phenol red, was valued at USD 21.3 billion in 2022 and is projected to expand at a compound annual growth rate (CAGR) of 11.3% from 2023 to 2030, fueled by increased R&D in life sciences and biopharmaceuticals. This surge in cell culture activity directly correlates with heightened demand for high-purity phenol red. Furthermore, Mordor Intelligence forecasts similar momentum, citing increasing investments in drug discovery and personalized medicine as key growth catalysts. As demand escalates, a select group of manufacturers has emerged to dominate the supply of high-quality phenol red, ensuring consistency, regulatory compliance, and scalability for industrial and laboratory use. Here, we examine the top eight companies leading this specialized chemical segment.
Top 8 Phenol Red Manufacturers 2026
(Ranked by Factory Capability & Trust Score)
#1 Phenol Red, Reagent, 5G
Domain Est. 2018
Website: congeriem.com
Key Highlights: Rating 4.8 (2,210) · Free delivery over $200Chemical purchases under $50 requires an additional $10 handling fee. Manufacturer ID – IS25042 CAS#: 34487-61-1. Chemical Formula: …
#2 Phenol Red Manufacturer and Suppliers
Domain Est. 2019
Website: scimplify.com
Key Highlights: Source high-quality Phenol Red CAS Number: 143-74-8 from Scimplify, a trusted manufacturer and distributor. Available in stock at competitive prices….
#3 Phenol red
Domain Est. 1990
Website: bd.com
Key Highlights: A unique BD manufacturing process reduces the presence of artifacts—a chemical precipitate sometimes mistaken for microorganisms in Gram stain preparations. The ……
#4 CAS Number 143-74-8
Domain Est. 1995
Website: spectrumchemical.com
Key Highlights: 15-day returnsSpectrum Chemical manufactures and distributes fine chemicals with quality you can count on including those with CAS number 143-74-8….
#5 Phenol Red Ind, ACS Grade, 10 Grams
Domain Est. 1997
Website: calpaclab.com
Key Highlights: In stock Free deliveryPhenol Red Ind, ACS Grade, 10 grams. Catalog Number: IS25172; CAS # 34487-61-1; Chemical Formula: C19H13NaO5S; Shelf Life (months): 36; Country of Origin: ……
#6 Phenol Red Rapid
Domain Est. 1997
Website: lovibond.com
Key Highlights: Phenol Red is used for pH measurement. The tablet produces characteristic colour changes when dissolved in the water sample….
#7 pH Indicator Solution (for 2000 Series), Phenol Red
Domain Est. 1998
Website: taylortechnologies.com
Key Highlights: In stock 30-day returnsTaylor R-0004 pH Indicator Solution measures pH levels in pool and spa water by delivering accurate colorimetric readings….
#8 Phenol red, ACS, 25 g
Domain Est. 2003
Website: mpbio.com
Key Highlights: 11-day delivery 30-day returnsPhenol Red Sodium Salt is used as a pH indicator, it is used widely in culture media to identify changes from neutral to acidic pH values. Phenol red …
Expert Sourcing Insights for Phenol Red

H2: Market Trends for Phenol Red in 2026
As the global demand for biochemical reagents and pH indicators continues to expand, the market for Phenol Red is expected to experience steady growth through 2026. This trend is driven by several interrelated factors across the pharmaceutical, biotechnology, and diagnostic industries. Below is an analysis of key market trends expected to shape the Phenol Red landscape in 2026:
1. Rising Demand in Cell Culture Applications
Phenol Red remains a critical pH indicator in cell culture media, particularly in mammalian cell cultures used for vaccine production, monoclonal antibody development, and regenerative medicine. With the continued expansion of biopharmaceutical manufacturing — especially in emerging markets such as India, China, and Southeast Asia — demand for high-quality Phenol Red is projected to rise. The growth in contract development and manufacturing organizations (CDMOs) further amplifies this demand.
2. Advancements in Diagnostic and Research Tools
The increasing use of Phenol Red in diagnostic assays and laboratory research, including microbiology and environmental testing, supports market growth. Its role in detecting pH changes in microbial metabolism (e.g., in carbohydrate fermentation tests) ensures ongoing relevance. In 2026, innovations in high-throughput screening and lab-on-a-chip technologies may incorporate Phenol Red as a visual indicator, expanding its utility.
3. Shift Toward Serum-Free and Chemically Defined Media
A notable trend in bioprocessing is the shift from traditional serum-containing media to serum-free and chemically defined formulations. While some serum-free media eliminate Phenol Red due to estrogenic activity concerns, others retain it for real-time pH monitoring. Manufacturers are responding by offering ultra-pure, low-endotoxin grades of Phenol Red tailored for sensitive cell cultures, which is expected to sustain market demand.
4. Regional Market Expansion and Supply Chain Diversification
Asia-Pacific is anticipated to be the fastest-growing regional market for Phenol Red by 2026, driven by government investments in biotechnology infrastructure and rising R&D expenditures. At the same time, supply chain resilience has become a priority post-pandemic. Producers in Europe and North America are diversifying sourcing and investing in local synthesis capabilities to reduce dependency on single-source suppliers, particularly from China.
5. Regulatory and Environmental Considerations
Regulatory scrutiny around chemical safety and environmental impact is increasing. While Phenol Red is not classified as highly hazardous, manufacturers are adopting greener synthesis methods and improving waste management practices to comply with REACH, EPA, and other environmental regulations. This shift supports long-term sustainability and market acceptance.
6. Competitive Landscape and Pricing Pressures
The Phenol Red market remains moderately competitive, with several key suppliers including Sigma-Aldrich (Merck), Thermo Fisher Scientific, and Tokyo Chemical Industry Co. (TCI). While commoditization exerts downward pressure on prices for standard grades, premium grades (e.g., cell culture tested, low in metals) command higher margins. In 2026, differentiation through purity, consistency, and technical support will be key competitive advantages.
Conclusion
By 2026, the Phenol Red market is expected to grow at a moderate CAGR of approximately 3.5–4.5%, underpinned by persistent demand in life sciences and biopharma. Innovation in application-specific formulations, geographic expansion, and sustainability initiatives will define market leadership. While alternative pH indicators are emerging, Phenol Red’s reliability, cost-effectiveness, and deep integration into established protocols ensure its continued relevance in the global reagent market.

H2: Common Pitfalls in Sourcing Phenol Red – Quality and Intellectual Property Concerns
Sourcing Phenol Red, a pH indicator widely used in cell culture media and diagnostic applications, presents several challenges related to product quality and intellectual property (IP) rights. Understanding these pitfalls is critical for manufacturers, biotech firms, and research institutions to ensure regulatory compliance, product consistency, and freedom to operate.
- Inconsistent Purity and Quality Standards
- Issue: Phenol Red from different suppliers may vary significantly in purity, contamination levels (e.g., heavy metals, endotoxins), and suitability for sensitive applications such as cell culture.
- Pitfall: Lower-grade or inadequately purified Phenol Red can introduce variability in assay results or harm cell viability, especially in serum-free or GMP-grade media.
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Mitigation: Require detailed Certificates of Analysis (CoA), adherence to pharmacopeial standards (e.g., USP, EP), and testing for endotoxins and solubility. Prefer suppliers with ISO or GMP certifications.
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Lack of Traceability and Documentation
- Issue: Some suppliers, particularly from less-regulated regions, may not provide full traceability of raw materials or synthetic pathways.
- Pitfall: This opacity raises concerns about batch-to-batch consistency and regulatory compliance, especially under FDA or EMA scrutiny.
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Mitigation: Audit suppliers for robust quality management systems and demand full documentation of synthesis and purification processes.
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Intellectual Property (IP) Infringement Risks
- Issue: Specific formulations or purification methods for Phenol Red may be protected by patents, particularly in pharmaceutical or diagnostic applications.
- Pitfall: Sourcing from a supplier using patented methods without licensing could expose the buyer to IP litigation, especially in commercial products.
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Mitigation: Conduct freedom-to-operate (FTO) analyses and verify that the supplier has the right to sell the product for your intended use. Request IP indemnification clauses in supply agreements.
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Mislabeling or Substitution
- Issue: Some suppliers may misrepresent the grade or source of Phenol Red, or substitute it with chemically similar but non-identical dyes.
- Pitfall: This can lead to failed experiments or regulatory non-compliance in clinical applications.
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Mitigation: Use independent analytical testing (e.g., HPLC, UV-Vis spectroscopy) to confirm identity and purity upon receipt.
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Supply Chain Vulnerabilities
- Issue: Reliance on single-source suppliers or regions prone to regulatory or logistical disruptions increases risk.
- Pitfall: Interruptions can halt production or research timelines, especially if qualified alternatives are not available.
- Mitigation: Qualify multiple suppliers and consider stockpiling critical batches.
In summary, sourcing Phenol Red requires due diligence in evaluating both quality attributes and IP landscape. A proactive approach involving supplier qualification, robust contracts, and technical validation is essential to avoid costly delays and legal exposure.

Logistics & Compliance Guide for Phenol Red (Using H2 Statement)
Prepared in accordance with GHS (Globally Harmonized System) and relevant safety regulations
1. Chemical Identification
- Chemical Name: Phenol Red (Phenolsulfonphthalein)
- CAS Number: 143-74-8
- Molecular Formula: C₁₉H₁₄O₅S
- Appearance: Dark red to purple crystalline powder
- Common Uses: pH indicator (range: 6.8–8.4), cell culture media additive, biological staining
2. Hazard Identification (GHS Classification)
Based on EU CLP Regulation (EC) No 1272/2008 and GHS Rev. 9
- Hazard Class: Not classified as hazardous under GHS for physical or health hazards in typical handling forms (solid, low concentration).
- Hazard Statement (H-Statements):
- H2: Not classified as hazardous
(Per manufacturer SDS and available data, Phenol Red is generally not assigned GHS hazard classifications when handled as supplied. However, precautions should still be observed.) - Note: While Phenol Red is not formally classified under H3 (acute toxicity, skin corrosion, etc.), it may cause irritation upon prolonged or repeated exposure.
3. Precautionary Statements (P-Statements)
Even though classified under H2 (not hazardous), standard safety practices apply:
- P261: Avoid breathing dust/fume.
- P280: Wear protective gloves/eye protection.
- P302 + P321 + P352: IF ON SKIN: Wash with plenty of soap and water.
- P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing.
- P501: Dispose of contents/container in accordance with local regulations.
4. First Aid Measures
- Inhalation: Move to fresh air. If breathing is difficult, seek medical attention.
- Skin Contact: Wash with soap and water. Remove contaminated clothing.
- Eye Contact: Flush eyes with water for at least 15 minutes. Seek medical advice if irritation persists.
- Ingestion: Rinse mouth. Do not induce vomiting. Seek medical attention if discomfort occurs.
5. Handling & Storage
- Handling:
- Use in well-ventilated area.
- Avoid generating dust.
- Use appropriate personal protective equipment (PPE): gloves, safety goggles, lab coat.
- Storage:
- Store in a cool, dry, well-ventilated area.
- Keep container tightly closed.
- Protect from moisture and light (store in amber bottle or dark container).
- Separate from strong oxidizing agents.
6. Exposure Controls & Personal Protection
- Engineering Controls: Local exhaust ventilation if dust is generated.
- Personal Protection:
- Eye/Face Protection: Safety goggles
- Skin Protection: Nitrile or latex gloves
- Respiratory Protection: Not normally required; use dust mask if powder handling generates airborne particles.
7. Physical & Chemical Properties
- Physical State: Solid (powder or crystals)
- Color: Red to purple
- Melting Point: ~278°C (decomposes)
- Solubility: Soluble in ethanol, alkali solutions; slightly soluble in water
- pH Sensitivity: Changes from yellow (acidic) to red/purple (alkaline)
8. Stability & Reactivity
- Stable under normal conditions.
- Incompatible Materials: Strong oxidizing agents.
- Hazardous Decomposition Products: Carbon oxides, sulfur oxides (if heated to decomposition).
9. Transport Information
- Classification: Not regulated as dangerous goods (IATA, IMDG, ADR).
- UN Number: Not applicable
- Proper Shipping Name: Not regulated
- Packaging Group: Not applicable
- Remarks: Packaged for prevention of leakage and contamination. Label with chemical name and handling instructions.
10. Disposal Considerations
- Waste Code: Check local regulations (may be considered chemical waste depending on concentration and mixture).
- Disposal Method: Incineration in approved facility or disposal via licensed waste contractor.
- Do not dispose of in household waste or down the drain.
11. Regulatory Information
- TSCA (USA): Listed
- DSL (Canada): Listed
- REACH (EU): Registered
- GHS Implementation: Compliant with EU CLP and OSHA HCS
12. Additional Notes
- Although classified under H2 (not hazardous), treat Phenol Red with care due to potential irritant properties and environmental impact.
- Always consult the latest Safety Data Sheet (SDS) from your supplier before use.
- When used in biological systems (e.g., cell culture), ensure sterile handling and compliance with biosafety protocols.
Disclaimer: This guide is based on current regulatory data and assumes standard laboratory handling of Phenol Red. Always refer to the manufacturer’s SDS and local regulations for site-specific compliance.
Prepared using H2 classification per GHS – “Not classified as hazardous”
Conclusion: Sourcing Phenol Red Manufacturer
After a comprehensive evaluation of potential manufacturers for phenol red, it is evident that selecting the right supplier requires a balanced assessment of quality, regulatory compliance, scalability, cost-efficiency, and technical support. Phenol red, being a critical pH indicator widely used in cell culture media, diagnostics, and pharmaceutical applications, demands stringent quality control and adherence to international standards such as USP, EP, or ISO certifications.
Based on the evaluation criteria, manufacturers in regions like China, India, and Europe offer competitive advantages in terms of production capacity and cost. However, suppliers from established biopharmaceutical hubs in Europe and North America often provide superior documentation, traceability, and compliance with cGMP standards, which are essential for regulated markets.
The recommended approach is to partner with a manufacturer that not only meets current quality and volume requirements but also demonstrates a commitment to consistency, innovation, and regulatory readiness. Establishing a long-term partnership with a qualified supplier—supported by audit visits, sample testing, and contractual quality agreements—will ensure a reliable supply chain for phenol red, ultimately supporting product safety and regulatory success.
In conclusion, prioritizing quality over initial cost savings, verifying regulatory compliance, and conducting thorough due diligence are paramount in securing a dependable phenol red source for industrial or pharmaceutical use.







