4-Diethylaminobenzaldehyde CAS 120-21-8 Supplier | High Purity
4-Diethylaminobenzaldehyde CAS 120-21-8
CAS:120-21-8 |C11H15NO |MW：177.24 | EINECS NO：204-377-4
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Port: Shanghai Port, Qingdao Port
Description of 4-Diethylaminobenzaldehyde
4-Diethylaminobenzaldehyde, also known as 4-(diethylamino)benzaldehyde, 4-DEAB, or p-(diethylamino)benzaldehyde, is an aromatic aldehyde with the molecular formula C11H15NO and a molecular weight of approximately 177.24 g/mol. Its CAS number is 120-21-8. The compound normally appears as a light yellow to brown powder or crystalline solid, with a melting range commonly reported around 39–43°C. Commercial high-purity grades are available at 99.0% or higher by GC, depending on the supplier and specification. The material is also reported to be soluble in methanol and sensitive to storage conditions, so appropriate packaging and storage control are important when purchasing this chemical.
Product Images & Packaging
Product Parameters
| Property | Information |
|---|---|
| Product Name | 4-Diethylaminobenzaldehyde |
| CAS No. | 120-21-8 |
| IUPAC Name | 4-(Diethylamino)benzaldehyde |
| Synonyms | 4-DEAB; p-Diethylaminobenzaldehyde |
| Molecular Formula | C11H15NO |
| Molecular Weight | 177.24 g/mol |
| Appearance | Light yellow to brown powder/crystal |
| Melting Point | Approx. 39–43°C |
| Physical State at 20°C | Solid |
| Solubility | Soluble in methanol |
| Typical High-Purity Grade | ≥99.0% GC |
| Storage | Follow the applicable product SDS and supplier specification |
| Application Areas | Chemical research, analytical chemistry, biochemical research, organic synthesis |
The application of 4-Diethylaminobenzaldehyde
1. Key intermediates for triarylmethane pigments and dyes
4-Dimethylaminobenzaldehyde is a core precursor for the synthesis of numerous important triarylmethane dyes and pigments. Condensing the aldehyde with aromatic amines allows the central carbon of the triarylmethane structure and the benzene rings to be constructed. It is a key raw material in the preparation of a number of high-end dyes such as C.I. Alkaline violet 3
Due to its bright color and strong coloring power, 4-diethylaminobenzaldehyde is widely used in paper coloring, special inks, carbon paper, and dyeing of acidic mordant fibers such as acrylic. It can be modified further to produce triarylmethane-based pigments that perform better.
2.Synthesis of functional cyanine and near-infrared coloured building blocks
In the more cutting-edge field of functional dyes, 4-Diethylaminobenzaldehyde plays an irreplaceable role. Its structure, which contains both an aldehyde and an electron-retaining diethylamino, makes it a good starting material to synthesize various cyanine colors.
Especially, 4-diethylaminobenzaldehyde is an important intermediate for the preparation of cyanine dyes and phthalocyanine dyes. The core conjugated system of these dye molecules is often bridged by a benzene ring fragment with a strong electron donating group provided by 4-diethylaminobenzaldehyde and an electron deficient center. Functional dyes made from this have excellent near-infrared emission and absorption properties, and they are used mainly in high-tech areas.
3. Organic optoelectronic material and precursors to chemical sensing molecules
With the development of materials science, the application of 4-diethylaminobenzaldehyde has extended to the emerging field of organic electronics. Due to its strong intramolecular transfer properties, derivatives of it are used in organic semiconductor materials as well as nonlinear optical material. One more specific application is to use it as a pre-cursor for the synthesis recognition groups for pH fluorescent or ion probes.
The tertiary amino group in the molecular structure of 4-diethylaminobenzaldehyde is sensitive to environmental acidity and alkalinity. It can be used as a sensor molecule by connecting it to a fluorescent group. This allows the molecule to detect ions and pH levels through changes in its fluorescence. It can be used in biochemical analyses and environmental monitoring.
4.Synthesis of pesticide and pharmaceutical intermediates
It is not the main use but as a class benzaldehyde derivates with specific substitution patterns it can be used to synthesize certain heterocyclic or specific molecules for research and development in medicinal chemistry and insecticide chemistry. It can be used, for example, to synthesize agricultural chemicals or drug molecules containing triarylmethane or specific aminobenzaldehyde structure.
The use of 4-diethylaminobenzaldehyde is highly concentrated in the creation of color and light functional molecules. It evolved from the cornerstone of triarylmethane-based dyes, to a core component in cyanine dyes for laser and information storage technology.
The value of 4-diethylaminobenzaldehyde lies in its unique structure, which provides downstream products with strong color, specific light absorption/emission ability, and controllable electronic properties. It is an important link between chemical raw materials and functional chemicals.
Why Choose Zhishang Bio for 4-Diethylaminobenzaldehyde?
For procurement teams, sourcing a specialty chemical is not simply about finding a supplier that lists 4-Diethylaminobenzaldehyde 120-21-8 online. The more important questions are whether the supplier can provide consistent quality, complete documentation, responsive communication, and a practical supply plan when the order moves from laboratory testing to regular purchasing.
Zhishang Bio integrates chemical manufacturing, R&D, laboratory testing, warehousing, and international sales. Our production and quality-control system is designed around batch management, raw-material control, process monitoring, purification, packaging, and final inspection. Before shipment, buyers can request relevant documents such as COA, SDS, product specifications, and batch information according to their qualification requirements. Our technical and sales teams can also communicate with purchasing and laboratory personnel about required purity, packaging, quantity, and delivery arrangements.
As a professional chemical raw material supplier, Zhishang Bio supports customers looking for 4-Diethylaminobenzaldehyde supplier, 4-Diethylaminobenzaldehyde manufacturer, and high purity 4-Diethylaminobenzaldehyde supply. Our broader product portfolio covers pharmaceutical intermediates, pesticide intermediates, dyes and pigments, cosmetic raw materials, and other specialty chemicals. This one-stop sourcing model can be useful when a buyer needs several chemical materials from the same supply chain.
Production & Quality Advantages
- Controlled batch production and quality inspection
- In-house laboratory and technical support
- Batch-level quality documentation available upon request
- Flexible packaging for laboratory and commercial purchasing
- Support for sample evaluation before larger orders
- Stable supply planning for repeat customers
- International export and logistics experience
- Technical communication in English for overseas procurement teams
4-Diethylaminobenzaldehyde 's Procurement Guide
Procurement Guidelines
1. Sample Policy
We can provide a 2-3g free trial package (shipping fee required)
2. Batch procurement
Packaging: 25kg/bag; 220kg/barrel; Special packaging according to your needs
MOQ：1kg
3. Customized services
Concentration customization (90% -99%)
Paeonol’s outsourcing services
FAQ
4-Diethylaminobenzaldehyde, also known as p‑diethylaminobenzaldehyde, is an aromatic aldehyde with molecular formula C₁₁H₁₅NO and molecular weight 177.24 g/mol. It is a pale yellow crystalline solid, widely applied as a key building block for organic synthesis and color‑forming reagents.
4-Diethylaminobenzaldehyde CAS 120-21-8 is primarily used as a specialty chemical reagent and research intermediate. It can be found in applications involving organic synthesis, biochemical research, analytical chemistry and proteomics research. The exact suitability depends on the customer’s process and required specification.
Commercial grades vary by supplier and application. High-purity commercial material is commonly available at around 99.0% or higher by GC. For procurement, buyers should request the current COA rather than relying only on the product-page specification.
- Storage requirements should follow the current SDS and supplier specification. Commercial technical data indicate that the material should be protected from unsuitable environmental conditions, and some suppliers recommend refrigerated storage and inert-gas protection. Buyers should confirm the storage requirement for the specific batch before shipment.
Yes. Zhishang Bio can arrange sample quantities for evaluation, subject to current stock and shipping conditions. For a quotation, buyers should provide the required quantity, purity, packaging and destination so that the available batch and delivery schedule can be checked before the order is confirmed.
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Manufacturer of 4-Diethylaminobenzaldehyde
Achievements
Advantage
Service
FAQ
Advice on Shipping
Achievements
Zhishang Bio is based in Shandong, serves the whole country, faces the world, and is determined to become an excellent supplier and service provider in the chemical industry.
As a top manufacturer of cosmetic raw materials, disinfectants, flavors and fragrances in China, we are committed to producing high-quality products and have won high praise from customers all over the world.
In the next 10 years or even longer, Zhishang Bio will always adhere to the tenet of quality first and reputation first, and devote itself to providing customers with thoughtful and perfect services.
As a professional 4-Diethylaminobenzaldehyde manufacturer, Zhi shang Bio has served more than 6,000 customers around the world. Because of our high-quality products and professional services, we have won high praise from most of our customers.
Advantage
Zhishang Bio is a professional enterprise engaged in the research and development, production, and sales of chemical raw materials. It has a strong supply chain system and strict quality control standards to ensure the provision of high-quality products with high purity and stability to customers.
Zhishang Bio’s core strength is its independent research and design capabilities. It has advanced production equipment, testing laboratories and can customize chemical raw materials to meet the market demands. This includes pharmaceuticals, electronic, coatings and agricultural applications.
Zhishang Bio’s supply chain management is based on long-term relationships with domestic and international suppliers of high quality to guarantee a stable supply, optimize logistic systems, and achieve efficient distribution. This helps reduce the cost of customer purchases.
We adhere to international environmental standards and we also adhere to the concept that environmental protection and safety production are important. All production processes must comply with these standards in order to guarantee that our products will be green and sustainable.
With a professional technical team and comprehensive after-sales service, Zhishang Bio can provide customers with precise technical support, solve application problems, and help customers enhance product competitiveness.
We are always customer-oriented and committed to becoming a trusted chemical raw material partner.
Service
Zhishang Biography is dedicated to using clients extensive and expert service, including chemical raw material. The customers will certainly receive hassle-free, efficient and one-stop options.
1. Custom-made Supply Solutions
Zhishang Bio provides tailored services for clients in the chemical basic material sector, including special bit dimension, solvent residue control, stability optimizations and more. Clients can personalize their services to satisfy details requirements in industries such as drugs, electronic devices, and finishings.
2. Strict quality assurance
Zhishang Bio utilizes advanced screening equipment and stringent quality examination procedures, in addition to various other files, to guarantee that every batch of products is certified with international criteria such ISO GMP, REACH, and so on. Customers are also given with full quality records and conformity documents.
The supply chain is secure
Zhishang Bio has actually established lasting calculated collaborations with worldwide makers of top notch raw materials to make certain a secure supply, maximize the storage facility and logistics system, and assistance both small-scale examinations and large orders. It adjusted to the changing requirements of clients by responding flexibly to these changes.
4. Technical support
Zhishang Bio’s technical group can offer suggestions on product applications, formula optimization and analysis of industry patterns to aid clients fix technological troubles during production and boost item efficiency.
5. Efficient after-sales service
Zhishang Bio provides complete monitoring, reacts to client requests and delivers promptly. This will certainly make certain customer complete satisfaction.
Zhishang Biography intends to help consumers expand their service by providing the very best solutions and chemical resources.
FAQ
DO YOU ACCEPT SAMPLE ORDER?
We will make samples before mass production. After the samples are approved by the department and users, we will start mass production. During the production process, we will carry out 100% inspection, and then carry out random inspection before packaging.
WHAT’S YOUR MOQ?
Our MOQ is 1kg. But usually we can also accept a smaller quantity, such as 100g, if you need it, provided that the sample fee is 100% paid.
IS THERE A DISCOUNT?
Different quantity has different discount.
HOW TO CONFIRM WHETHER THE PRODUCT QUALITY MEETS OUR NEEDS BEFORE PLACING AN ORDER?
You can consult us to get free samples of some products, you only need to pay the freight or arrange express delivery to us and get the samples. You can send us the product specifications and requirements you need, and we will manufacture products according to your requirements.
DO YOU SUPPLY PRODUCT REPORT?
Yes. We’ll give you product analysis report before shipping.
LEARN MORE ABOUT US
Shandong Look Chemical
Advice on Shipping
1. For products ≤50kg, we recommend using express delivery, which is usually called DDU service (discounted, convenient).
2. For products ≤500kg, we generally recommend air freight, which is usually called FOB, CFR or CIF service (fast and efficient).
3. For products >500kg, we generally recommend shipping by sea, which is usually called FOB, CFR or CIF service (economical, safe).
4. For high-value products, please choose air or express to ensure the safety of product transportation.
Company Info
Zhishang Bio company in China that exports chemicals, Cosmetic raw materials, and Intermediates for over 70 countries now.
And a range of 50,000 products with the best quality and competitive price to meet your different purchasing needs.
The company integrates research and development, production, and trade, with a modern production base, advanced testing equipment, and an experienced technical team to ensure that products reach industry-leading levels in purity, stability, and environmental friendliness.
