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High Purity Aniline (99.9%) | Leading Global Supplier

The Unseen Engine: Global Industry Trends for Aniline

The global Aniline market is on a robust growth trajectory, projected to expand significantly in the coming years. This growth is primarily fueled by the soaring demand for Methylene Diphenyl Diisocyanate (MDI), the main precursor for rigid and flexible polyurethane foams. These foams are indispensable in energy-efficient construction, automotive manufacturing for lightweighting, and consumer goods. As sustainability becomes a core driver, the role of Aniline in creating insulating materials and lighter vehicles is more critical than ever. Furthermore, the rubber processing and agrochemical sectors continue to be stable consumers, while emerging applications in high-performance polymers and specialty dyes are opening new avenues for market expansion. Our commitment is to stay ahead of these trends, ensuring a reliable supply of high-purity Aniline to meet the evolving demands of a dynamic global market.

Global Aniline Market Growth Projection (USD Billion)

Uncompromising Quality: Technical Specifications

At DS Biochemical, our Aniline is not just a commodity; it's a commitment to precision and purity. Each batch is produced to exceed industry standards, ensuring optimal performance in the most demanding applications. Our product adheres to stringent quality control protocols, verified against international standards like ISO and ASTM. The data below reflects the superior quality of our standard grade Aniline, but we also offer customized specifications to meet unique client requirements.

The **purity level** is paramount, as even trace impurities can adversely affect downstream processes, such as polymerization rates or final product color. Our typical purity of >99.95% guarantees consistency and reliability. The **APHA color** is another critical quality indicator, especially for dye and polymer applications where color integrity is crucial. Our low APHA value ensures a near-colorless product, providing a perfect starting point for your synthesis.

High Purity Aniline (99.9%) | Leading Global Supplier

Product Specification: High-Purity Aniline
Parameter	Specification
Chemical Name	Aniline, Phenylamine, Aminobenzene
CAS Number	62-53-3
Molecular Formula	C₆H₅NH₂
Molar Mass	93.13 g/mol
Appearance	Colorless to pale yellow oily liquid
Purity (by GC)	≥ 99.95%
Moisture Content (Karl Fischer)	≤ 0.03%
Color (APHA)	≤ 50
Nitrobenzene Content	≤ 1 ppm
Density (at 20°C)	1.0217 g/cm³
Boiling Point	184.13 °C (363.43 K)
Melting Point	-6.3 °C (266.8 K)
Compliance Standard	ISO 9001, ASTM D3264

From Blueprint to Bottle: Our Advanced Manufacturing Process

Our state-of-the-art production of Aniline is centered around the catalytic hydrogenation of nitrobenzene, a process renowned for its high efficiency, selectivity, and environmental friendliness. This multi-stage process is meticulously controlled and monitored to guarantee the final product's superior quality and consistency. We leverage advanced process control systems and in-line analytics to ensure every drop of Aniline meets our stringent specifications.

1. Benzene Nitration

High-purity benzene is reacted with a mixed acid (nitric and sulfuric acid) to produce nitrobenzene.

2. Nitrobenzene Purification

The crude nitrobenzene is washed and distilled to remove impurities and unreacted materials.

3. Catalytic Hydrogenation

Purified nitrobenzene is vaporized and reacted with hydrogen over a specialized catalyst (e.g., copper or nickel).

4. Crude Aniline Separation

The reaction product is cooled, and crude Aniline is separated from water and by-products.

5. Final Purification

The crude Aniline undergoes fractional distillation to achieve >99.95% purity and is packaged under a nitrogen blanket.

Key Process Highlights:

Material Purity: We start with 99.9%+ pure benzene, ensuring a clean final product with minimal by-products like cyclohexylamine.
Advanced Catalysis: Our proprietary catalyst technology maximizes conversion rates while minimizing energy consumption, a key advantage in cost-effective and sustainable manufacturing.
Rigorous Testing (ISO/ASTM Standards): Quality control is embedded in every stage. We employ Gas Chromatography (GC) for purity analysis, Karl Fischer titration for moisture, and APHA colorimetry, all conforming to international testing standards like ASTM D3264.
Optimized for Longevity: The final product is stabilized and packaged in sealed, nitrogen-purged container111s to prevent oxidation and color degradation, ensuring a shelf life of up to 12 months when stored correctly.

Versatility in Action: Key Application Scenarios

Aniline is a foundational building block in numerous industries. Its unique chemical properties make it an irreplaceable intermediate for a wide range of high-value products. Our high-purity grade ensures superior performance and reliability across all applications.

MDI & Polyurethane Production

The largest application by far. Our Aniline is the key raw material for MDI, which is then used to create polyurethane foams. Its low moisture and impurity profile prevents unwanted side reactions, leading to foams with superior insulation (low K-factor), structural integrity, and durability. Advantage: Energy savings in buildings and appliances.

Rubber Processing Chemicals

Aniline derivatives, such as antioxidants (e.g., P-phenylenediamines) and vulcanization accelerators (e.g., sulfenamides), are critical for manufacturing durable and long-lasting tires and other rubber goods. Our product's consistency ensures predictable curing times and enhanced product lifespan. Advantage: Improved safety and performance in automotive tires.

Pharmaceuticals & Agrochemicals

A vital intermediate in the synthesis of various active pharmaceutical ingredients (APIs), including sulfa drugs, and a precursor for herbicides, fungicides, and pesticides. The high purity of our Aniline is non-negotiable in these regulated industries to ensure final product safety and efficacy. Advantage: Crucial for health and crop protection.

Dyes and Pigments

Historically the first major use, Aniline remains essential for producing a spectrum of azo dyes, such as indigo for blue jeans and other pigments for textiles, inks, and plastics. The low APHA color of our product guarantees vibrant, consistent, and true colors. Advantage: Rich, stable coloration for consumer and industrial goods.

Global Application Share of Aniline

The DS Biochemical Advantage: Why Choose Our Aniline?

In a competitive market, our focus on technical excellence, customer-centric solutions, and unwavering reliability sets us apart. We don't just sell a chemical; we provide a partnership built on trust and performance.

Technical Superiority

Unmatched Purity: Our process yields Aniline with purity levels consistently exceeding 99.95%, minimizing side reactions and maximizing your product yield.
Low Color Index: A critically low APHA color value makes our product ideal for color-sensitive applications like premium polymers and dyes.
Minimal Impurities: We tightly control critical impurities like nitrobenzene (

Supply Chain Reliability

Global Logistics Network: Strategic partnerships ensure timely and secure delivery to any location worldwide.
Robust Inventory Management: We maintain significant stock levels to buffer against market volatility and ensure uninterrupted supply for our long-term partners.
Flexible Packaging: From lab-scale bottles to ISO tanks, we offer packaging solutions tailored to your specific needs.

Performance Benchmark: DS Biochemical Aniline vs. Industry Standard

Tailored to Your Needs: Custom Solutions & Expert Support

We understand that one size does not fit all. Our team of chemical engineers and technical experts is ready to collaborate with you to develop customized Aniline solutions. Whether you require a specific purity profile, a unique impurity limit, or specialized packaging and delivery logistics, we have the flexibility and expertise to meet your challenge.

Our Customization Services Include:

Specification Tolling

Need an even lower moisture content or a tighter specification on a particular impurity? We can adjust our final purification stage to meet your exact requirements.

Custom Packaging & Labeling

We provide a range of packaging from 1L amber glass bottles to 200L drums and 20MT ISO tanks, with options for custom labeling and barcoding for seamless integration into your inventory system.

Dedicated Logistics

Work with our logistics team to create a just-in-time (JIT) delivery schedule that minimizes your on-site storage and optimizes your production flow.

Request a Custom Quote

Proven Performance: Application Case Studies

Case Study 1: Enhancing Rigid Foam Insulation for a Leading Appliance Manufacturer

Client: A global leader in refrigeration and home appliances.

Challenge: The client was experiencing inconsistencies in the expansion and cell structure of their polyurethane rigid foam, used for refrigerator insulation. This led to variations in energy efficiency ratings and occasional production line stoppages. Analysis pointed to variable moisture and nitrobenzene levels in their incumbent Aniline supply.

Our Solution: We provided our >99.95% purity Aniline with a guaranteed moisture content below 0.02% and nitrobenzene under 1 ppm. We also established a JIT delivery schedule with dedicated ISO tanks to eliminate any risk of atmospheric moisture contamination during storage.

Result: The client achieved a 12% improvement in production consistency and a measurable 5% increase in the foam's thermal insulation performance (R-value). This allowed them to secure a higher energy efficiency rating for their new product line. Production line stoppages related to foam quality were eliminated.

"Switching to DS Biochemical's high-purity Aniline solved our nagging consistency issues and gave us a tangible competitive advantage in product performance. Their technical support was instrumental." - Head of R&D, Client Company

Case Study 2: Achieving Color Perfection for a Specialty Textile Dye Producer

Client: A boutique manufacturer of high-end, vibrant textile dyes.

Challenge: The client struggled to achieve batch-to-batch color consistency for a critical red azo dye. Minor variations in the starting Aniline, particularly its APHA color and trace metal impurities, were causing noticeable shade differences, leading to rejected batches.

Our Solution: We supplied our premium grade Aniline with a guaranteed APHA color of

Result: The client completely eliminated batch-to-batch color variation, reducing their rejection rate from 8% to less than 0.5%. This improved profitability and solidified their reputation for producing premium, consistent dyes.

Your Questions, Answered: Professional FAQ

1. What is the typical purity of your Aniline and how is it verified?

Our standard grade Aniline has a guaranteed purity of ≥ 99.95%. We verify this for every batch using Gas Chromatography (GC) with a Flame Ionization Detector (FID). This method provides a precise quantification of the Aniline content and separates and measures any trace impurities. A detailed Certificate of Analysis (COA) with the exact purity value is supplied with every shipment, ensuring full transparency and compliance with standards like ASTM D3264.

2. What are the main impurities to be aware of in industrial-grade Aniline?

The most critical impurities in Aniline are nitrobenzene, water (moisture), and cyclohexylamine. Nitrobenzene is a precursor and highly toxic, so its level must be minimized (we guarantee

3. How should Aniline be stored to maximize its shelf life?

Aniline is sensitive to air and light, which can cause it to oxidize and darken, increasing its APHA color value. For optimal shelf life (up to 12 months), it should be stored in tightly sealed, opaque or amber-colored container111s under an inert atmosphere (like nitrogen). The storage area should be cool, dry, well-ventilated, and away from direct sunlight and sources of ignition. We supply our product in nitrogen-purged container111s to ensure it reaches you in perfect condition.

4. What is the APHA color index and why is it important for Aniline?

The APHA (American Public Health Association) color scale, also known as the Platinum-Cobalt scale, is a standard method for measuring the "yellowness" of near-colorless liquids. For Aniline, a low APHA value (e.g.,

5. Is your Aniline suitable for pharmaceutical intermediate synthesis? What certifications do you have?

Yes, our high-purity Aniline is widely used as a starting material or intermediate in the synthesis of various Active Pharmaceutical Ingredients (APIs). While the product itself is a chemical intermediate, our manufacturing facilities operate under strict ISO 9001:2015 (Quality Management) and ISO 14001:2015 (Environmental Management) certifications. We can provide detailed purity analyses and impurity profiles to help clients with their regulatory submissions and process validation.

6. What are the key safety precautions for handling Aniline?

Aniline is a toxic substance and requires careful handling. Always work in a well-ventilated area or under a fume hood. Personal Protective Equipment (PPE) is mandatory, including chemical-resistant gloves (e.g., butyl rubber or Viton), safety goggles, and a lab coat. Avoid inhalation of vapors and skin contact. A comprehensive Safety Data Sheet (SDS) is provided with all shipments, which details handling, storage, first-aid measures, and emergency procedures.

7. Can you provide Aniline in custom packaging sizes, including for R&D?

Absolutely. We are committed to supporting our clients at every scale, from R&D to full-scale production. We offer a wide range of standard packaging, including 500mL/1L amber glass bottles for lab use, 25L pails, 200L steel drums, and 1,000L Intermediate Bulk Containers (IBCs). For bulk requirements, we supply 20MT ISO tanks. We are happy to discuss any custom packaging or quantity requirements you may have.

Partner with the Leader in Chemical Purity and Reliability

Elevate your production with Aniline that sets the standard for quality. Our team is ready to provide you with a detailed quote, technical data sheets, and expert consultation to ensure you get the perfect solution for your application.

Authoritative References & Further Reading

To ensure our content aligns with the highest standards of expertise and authoritativeness, we reference leading chemical industry publications and academic research. For those seeking a deeper technical understanding of Aniline, its properties, and applications, we recommend the following resources:

Ullmann's Encyclopedia of Industrial Chemistry: The chapter on "Aniline" offers a comprehensive overview of manufacturing processes, properties, and economic aspects. Wiley Online Library.
Journal of Catalysis: This peer-reviewed journal frequently publishes research on advancements in catalytic hydrogenation processes relevant to Aniline production. ScienceDirect.
American Chemical Society (ACS) Publications: The ACS provides extensive resources on the chemistry and industrial applications of aromatic amines. ACS Publications.
IHS Markit Chemical Economics Handbook: For detailed market analysis, trends, and forecasts for the Aniline and MDI markets. (Access typically requires a subscription).

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