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2-Anilino-6-dibutylamino-3-methylfluoran (commonly known as ODB-2) is a specialized chemical compound primarily used as a color former in the paper industry.
Primary Uses:
Its main application is as a color former for the production of thermal and pressure-sensitive paper. It is widely utilized in manufacturing receipts, POS (point-of-sale) paper, self-adhesive labels, movie tickets, lottery tickets, and various recording papers.
Key Selling Points:
High Purity and Performance: Commercially available ODB-2 typically boasts high purity (≥98.0% to ≥99.5%), ensuring reliable and consistent color development in thermal printing applications.
High Market Dominance: China is the world's largest producer of this compound, accounting for nearly 90% of the global market share, indicating a highly stable and robust supply chain.
Physical Stability: It is a white powder with a distinct melting point (around 179–184°C), making it highly suitable for industrial coating processes in paper manufacturing.
Broad Application Scope: Its effectiveness in generating clear black text makes it an indispensable material for everyday thermal printing needs across retail, logistics, and ticketing industries.
Specifications of 2-Anilino-6-dibutylamino-3-methylfluoran CAS 89331-94-2 COA:
Items | Specifications | Results |
Appearance | White to off-white powder | Off-white powder |
Melting Point | ≥182℃ | 183.5℃~184.1℃ |
Insoluble matter | ≤0.5% | 0.03% |
Loss on drying | ≤0.3% | 0.03% |
Purity(HPLC) | ≥99.5% | 99.81% |
Conclusion | The product conforms to the above specifications. | |
Product Name:2-Anilino-6-dibutylamino-3-methylfluoran
CAS:89331-94-2
MF:C35H36N2O3
Melting point :183.5℃~184.1℃
form:powder
color:Off-white
Uses:
2-Anilino-6-dibutylamino-3-methylfluoran, commonly known as ODB-2 (CAS: 89331-94-2), is a leuco dye belonging to the fluoran family. Its molecular formula is C₃₅H₃₆N₂O₃ with a molecular weight of 532.67. In its normal state, it appears as a white to off-white crystalline powder with a melting point of 179–184°C. It is classified as a color former — a compound that is colorless in its reduced (leuco) form but develops a strong black color when exposed to acidic conditions or heat.
Primary Uses
Thermal Paper Manufacturing (Core Application)
ODB-2's dominant use is as a color former in thermal paper production. It is mixed with a developer (such as bisphenol A or alternative phenolic compounds) and coated onto paper. When a thermal printer's printhead applies heat, ODB-2 reacts with the developer to produce a deep black image — forming receipts, POS tickets, shipping labels, and more.
Carbonless (NCR) Paper
In carbonless paper systems, ODB-2 is microencapsulated. When pressure is applied (e.g., writing or typing), the microcapsules rupture, releasing ODB-2 to react with a developer coating on the sheet below, creating a visible copy without carbon paper.
Pressure-Sensitive Recording Paper
ODB-2 also serves in pressure-sensitive paper applications, where mechanical force triggers the color development reaction.
Temperature-Indicator / Thermochromic Materials
ODB-2 is used as a thermochromic warning material for surfaces where thermometers cannot be installed (e.g., machinery surfaces, bearings), changing color at specific temperature thresholds.
End-Use Industries
The downstream applications span retail (POS receipts), logistics (shipping labels), healthcare (clinic prints), hospitality, event/transportation ticketing, and barcode labeling.
Key Selling Points
Superior Color Development Performance
ODB-2 delivers high color sensitivity, producing deep neutral-to-black shades with excellent contrast and image clarity. This ensures crisp, legible prints even at high speeds — critical for retail and logistics environments.
High Purity & Consistency
Commercial-grade ODB-2 is typically available at ≥98–99.5% purity (HPLC), ensuring consistent batch-to-batch performance, minimal background staining, and reliable color development in industrial coating processes.
Excellent Lightfastness
Images produced with ODB-2 exhibit good light fastness on phenolic resin and zinc salicylate papers, ensuring printed records remain readable over time under normal storage conditions.
Versatile Developer Compatibility
ODB-2 works with multiple developer types — phenolic resins, zinc salicylate, and clay developers — each yielding slightly different color tones (neutral black, greenish-black, or bluish-black). This flexibility allows manufacturers to tailor output to specific application needs.
Cost-Effective & Scalable
ODB-2 is economically priced for large-scale industrial use. China dominates global production (with companies like Jianxin Co. holding ~67% of domestic capacity at ~2,000 tons/year), ensuring stable, high-volume supply chains.
Growing Market Demand
The global ODB-2 market was valued at approximately USD 2.5 billion in 2024 and is projected to reach USD 3.8 billion by 2033 (~5% CAGR), driven by e-commerce growth, expanding logistics, and increasing POS system adoption worldwide.
Stable Physical Properties
With a well-defined melting point (179–184°C), low vapor pressure, and good thermal stability, ODB-2 integrates smoothly into standard paper coating formulations without degradation during processing.
Structural Simplicity & Single-Color Purity
ODB-2 develops a single, clean black color without unwanted color casts, making it ideal for applications requiring high-contrast, monochrome output such as barcodes and scannable labels.
Also, if you have any other questions, you can contact us
FAQ From Wuhan Fortuna Chemical Co.,Ltd
Q1: Can I get a sample for free ?
A: For small QTY and low value product, we can provide sample for free exclude shipping cost. For high value sample, we will charge the basic sample cost, but we can refund all the cost if customers place order after sample test.
Q2: How to confirm the product quality before placing orders ?
A: Most of our products confirm to international standards like USP/EP/BP/JP/CP. We will provide COA/TDS/MSDS for customers to confirm the specification before placing order.
Q3: What is the payment you accept?
A: For small and low value order, we accept CreditCard, MaterCard,VISA,Western Union and T/T.For large order, we can do T/T and L/C. Any pay on delivery or pay-after are not available for us.
Q4: What is your shipment way ?
A: For less than 100kg gross weight order will ship with courier like FedEx or UPS, we support customers to place courier orders remotely by their account, we will package the goods well and wait for pick up.For more than 100kg goods, we will transport by Air or Sea according to customers' requirement.
Q5: How long is your after-sales service?
A: We accept customer’s quality complaint in three month after customer received the goods. We provide tech.support for all-life if customer place order from our company.
Q6: How do you treat quality complaint ?
A: We support customer to provide our products to any rightful third party testing organization to test our products according to the COA specification, if the test result is confirm with COA, we will take all the loss for customers.
Name:Wuhan Fortuna Chemical Co.,Ltd
Category:Others
Trade Category: Trading Company
Employees: 11 - 50 People
Address: Room 2015, No.2 Building, Kaixin Mansion No.107
Company Information: Wuhan Fortuna Chemical Co.,Ltd established in 2006, is a big integrative chemical enterprise being engaged in Pharmaceutical and Intermediates, Food and Feed additives, Fine chemicals,Biochemical and Reagent, which is the members of Hubei E-commerce Chamber.
Our company has professional persons who major in chemical R&D and sicentific management, supply fine chemical products with high quality and close service, also supply custom-tailored products according to our clients' requirement.
We have a positive and self-motivated management work team with a common philosophy, caring and commitment through teamwork, our team strive to achieve success in delighting our clients and ourselves.
Since Wuhan Fortuna Chemical Co., Ltd founded, we continuously innovate our products and improve our service, sales network. Hence, we initiate the first sale mode on net in China, which is the retail trade of small package bring along wholesale of diversified management modes. Our products are exported widely to South Korea, Vietnam, Australia, Europe and South America, highly recommended by our clients.We insist on the management creed “Market is our compass, Quality is our life, Credit is our soul”. Clients’ trust is our forward power, their satisfaction is our struggling goal.
Wuhan Fortuna Chemical Co.,Ltd is a professional manufacturer which provide 2-Anilino-6-dibutylamino-3-methylfluoran with good quality and best price, welcome to contact us to get COA/TDS/MSDS of 2-Anilino-6-dibutylamino-3-methylfluoran.
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