Phenolphthalein CAS 77-09-8: Your Premier pH Indicator and Pharmaceutical Intermediate Supplier
Discover the versatile applications of Phenolphthalein (CAS 77-09-8), a vital chemical intermediate and pH indicator. As a trusted manufacturer and supplier from China, we provide high-purity Phenolphthalein to meet diverse industrial and laboratory needs, ensuring quality and reliability for your critical processes.
Get a Quote & SampleReliable Phenolphthalein for Diverse Applications

Phenolphthalein
As a leading Phenolphthalein manufacturer and supplier in China, we offer high-quality C20H14O4 chemical compound. Our Phenolphthalein is essential for precise pH determination, acting as a critical intermediate in pharmaceutical formulations, particularly for laxatives, and in advanced organic synthesis for high-performance polymers. We ensure consistent quality and competitive pricing for bulk purchases.
- High Purity Phenolphthalein Powder: Essential for accurate laboratory pH titrations and chemical analyses.
- Pharmaceutical Intermediate: A key ingredient in laxative formulations, trusted by the pharmaceutical industry.
- Organic Synthesis Applications: Crucial for creating advanced polymers with excellent heat and chemical resistance.
- Trusted China Supplier: Benefit from reliable supply, competitive prices, and stringent quality control from a reputable manufacturer.
Key Advantages of Our Phenolphthalein
Exceptional pH Indicator Performance
Our Phenolphthalein provides a clear and reliable color change from colorless to red-violet within the crucial pH range of 8.2-10.0, making it an indispensable tool for chemical titrations and laboratory testing.
Versatile Pharmaceutical & Industrial Use
Beyond its role as a pH indicator, Phenolphthalein is a vital pharmaceutical raw material and a key component in synthesizing specialized polymers, demonstrating its broad utility.
Commitment to Quality and Consistency
We are a dedicated Phenolphthalein manufacturer committed to delivering products that meet USP26, EP8.0, and BP2014 quality standards, ensuring efficacy and safety for all applications.
Applications of Phenolphthalein
pH Determination
Widely used as a colorimetric pH indicator in acid-base titrations and various laboratory analyses to determine solution acidity or alkalinity.
Pharmaceutical Manufacturing
Serves as a pharmaceutical raw material for laxative preparations, valued for its efficacy and established safety profile in medicinal formulations.
Organic Synthesis
Essential in the synthesis of high-performance polymers like poly (aryl ether ketone) due to its contribution to excellent heat and chemical resistance properties.
Chemical Reagent
Utilized in non-aqueous titrations and colorimetric analysis, serving as a reliable reagent for chemical research and industrial processes.