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Nantong Shengfeng Chemical Co., Ltd. is located in Fengli Town, Nantong City, bordering the Yangtze River to the south and the Yellow Sea to the east. Situated within Shanghai's one-hour economic circle, it enjoys convenient land and water transportation, giving it a significant geographical advantage. The company specializes in producing a series of phosphonates, including phosphonic acid, potassium dihydrogen phosphate, and potassium phosphonate.

2,2'-Azobis(2,4-dimethyl)valeronitrile
Chinese Name: Azobisisoheptonitrile. English Name: 2,2'-Azobis(2,4-dimethylvaleronitrile). Alias: V-65/ABVN. Key Identifiers: CAS No. 4419-11-8; EINECS No. 224-583-8; Molecular
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Dimethyl 2,2'-azobis
Item: Details. Chinese Name: Dimethyl Azobisisobutyrate. English Name: Dimethyl 2,2'-azobis(2-methylpropionate). Common Aliases: AIBME, V-601, MAIB
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Solid Azobisisobutyronitrile
Chinese Name: Azobisisobutyronitrile (AIBN). CAS No.: 78-67-1. Molecular Formula: C₈H₁₂N₄. Relative Molecular Mass: 164.21
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2,2'-Azodi(2-methylbutyronitrile)
Item: Content. Chinese Name: Azobisisovaleronitrile. English Name: 2,2'-Azobis(2-methylbutyronitrile). Common Aliases: AMBN, Vazo 67
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Why Choose Us

Rich Experience

We have accumulated 16 years of mature, All products strictly adhere to national standards, ensuring stable and reliable quality.

Sales Market

Our products are exported to South America, North America, Australia, and most parts of Europe, winning unanimous praise from customers both domestically and internationally.

Production Equipment

The production equipment is fully equipped, including 20 reaction kettles, 4 centrifuges, a thermal oil circulating boiler, and a small packaging filling line, which can fully meet the needs of large-scale production and standardized packaging of a series of phosphonate products.

Our Service

We have a professional service team that can provide clients with end-to-end problem solutions. We also support customized formulations with different content specifications and packaging methods based on clients' usage habits and individual needs, maximizing the satisfaction of diverse client requirements.

Overview of Azobis Compounds

Azobis compounds are organic compounds containing a \(-N=N-\) bridge connected to two organic groups, primarily used as free radical initiators for polymerizing plastics and rubber. They decompose upon heating to produce radicals and nitrogen gas, acting as foaming agents in manufacturing, or as model oxidants in pharmaceutical stability testing. Common examples include AIBN and AAPH.

Product Specification

We offers the following product specifications：

Item	Details
Chinese Name	Dimethyl Azobisisobutyrate
English Name	Dimethyl 2,2'-azobis(2-methylpropionate)
Common Aliases	AIBME, V-601, MAIB
CAS No.	2589-57-3
EINECS No.	219-976-6
Molecular Formula	C₁₀H₁₈N₂O₄
Relative Molecular Mass	230.26

Product features

Free Radical Initiation: Used widely as catalysts to initiate radical polymerization for polymers like PVC, polyvinyl alcohol, and polyalkene.

Thermal and Photochemical Decomposition: They undergo homolytic scission under heat or light, releasing nitrogen gas and generating radicals.

No Oxygenated Byproducts: Unlike organic peroxides, azobis compounds do not produce oxygenated byproducts, reducing oxidative degradation.

High-Nitrogen Energy Materials: Some azobis compounds, such as azobis-1,2,3-triazole, are studied as energetic materials due to high nitrogen content.

Versatile Solubility: AIBN is soluble in organic solvents (alcohol) but not water, while others like 2,2'-Azobis(2-methylpropionamidine) dihydrochloride are water-soluble for aqueous applications.

Photoswitching: Azobispyrazoles are used as molecular photoswitches with tunable thermal half-lives, changing structure through isomerization.

Typical Physical Properties: AIBN is typically a white powder that can cause little yellow discoloration during polymerization.

Stability: They have predictable, high thermal stability (e.g., AIBN 10-hour half-life at \(65^{\circ}C\)).

Application

Polymerization Initiator for Macromolecules: Suitable for monomers including PVC, PVA, PMMA and styrene series. Low-temperature and high-efficiency polymerization can be achieved by adding 0.02%–0.08% of the product in the solution.

Blowing Agent: Applied in the plastic and rubber industries

Process Compatibility: Applicable to bulk polymerization, suspension polymerization, solution polymerization and other processes

Laboratory Research: It serves as an initiation source for research on free radical polymerization kinetics and RAFT polymerization. According to literature reports, the 10-hour half-life decomposition temperature of 2,2'-Azodi(2-methylbutyronitrile) is approximately 67℃ (in toluene), with a decomposition activation energy of about 125 kJ/mol, providing reliable kinetic parameters for related polymerization mechanism studies.

Precautions

Storage
Store in a sealed package in a cool, dry and well-ventilated warehouse. Maintain the storage conditions as follows: temperature ≤30℃, relative humidity ≤75%. Keep away from ignition sources, heat, strong acids, strong bases and oxidants. Strictly prohibit mixed storage with food and feed. The shelf life is 6 months.

Transportation
Transport as hazardous goods. Avoid exposure to sunlight, rain and high temperatures. Handle with care during loading and unloading to prevent package damage. The transport vehicle must be equipped with leakage emergency treatment equipment.

Leakage
Isolate the leakage area and wear protective equipment. Cover and collect solid leakage with dry sand; adsorb liquid leakage with vermiculite. Prevent dust from spreading. Wastewater shall be treated by professional institutions.

Exposure
Skin Contact: Rinse the affected area thoroughly with soapy water for 15 minutes.
Eye Contact: Rinse eyes with flowing clean water for 15 minutes and then seek medical attention immediately.
Inhalation: Move the victim to fresh air. Administer oxygen if breathing is difficult.
Ingestion: Rinse the mouth immediately, drink a sufficient amount of warm water to induce vomiting, and seek medical treatment promptly.

Fire
Extinguish the fire with dry powder, carbon dioxide or foam. Do not directly spray water on molten substances. Firefighters must wear full-body fire suits and gas masks.

Package & Delivery

Regular Packaging: 25 kg per fiber drum (lined with plastic bag)
Customized Packaging: 1 kg, 5 kg, 25 kg and other specifications available according to customer requirements

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FAQ

Q: What are azobis compounds and what are their main applications?

A: Azobis compounds are a class of organic molecules containing the azo (-N=N-) functional group, commonly used as radical initiators in polymerization, crosslinking, and chemical synthesis processes.

Q: How do azobis compounds function as initiators?

A: They thermally decompose to generate free radicals, which initiate polymerization reactions in monomers such as styrene, acrylates, and vinyl compounds. The decomposition rate is temperature-dependent and controllable.

Q: What types of azobis compounds are most commonly used industrially?

A: Common types include AIBN (Azobisisobutyronitrile), VA-044, and VA-086. Selection depends on the required decomposition temperature, solubility, and application in aqueous or organic systems.

Q: What purity levels are typically available?

A: Industrial azobis compounds are available in 98–99% purity for polymerization applications. High-purity grades are also offered for pharmaceutical intermediates or specialty chemical synthesis.

Q: Are azobis compounds sensitive to storage conditions?

A: Yes, they are heat- and light-sensitive. They should be stored in a cool, dark, and well-ventilated area, typically at temperatures below 10–25°C depending on the compound, and away from oxidizing agents.

Q: What safety precautions should be taken when handling azobis compounds?

A: Proper PPE (gloves, goggles, lab coat) should be used. They are potentially explosive when dry and sensitive to friction or impact. Handling should follow SDS guidelines and local regulatory requirements.

Q: Can azobis compounds be used in both solution and bulk polymerization?

A: Yes, many azobis initiators are versatile. Solubility in organic solvents or water is an important factor in process design, and selection should match the intended polymerization system.

Q: How is the decomposition rate controlled in polymerization processes?

A: The rate depends on temperature, solvent, and concentration. Manufacturers provide half-life data at different temperatures to allow precise process control for consistent polymer properties.

Q: Are azobis compounds compatible with other initiators or additives?

A: They are generally compatible with common monomers and stabilizers, but compatibility with oxidizers, strong acids, or bases should be tested to avoid premature decomposition or side reactions.

Q: What certifications or compliance standards are expected from suppliers?

A: Reputable suppliers comply with ISO 9001, REACH, and local environmental and safety regulations. High-purity or pharmaceutical-grade azobis compounds may require additional GMP or analytical documentation.

Q: How are azobis compounds typically packaged?

A: They are supplied in tightly sealed, light-resistant containers such as glass or HDPE bottles, drums, or bulk bags. Packaging is designed to prevent exposure to heat, moisture, and friction.

Q: What is the shelf life of azobis compounds?

A: Shelf life is usually 6–24 months depending on the compound and storage conditions. Decomposition accelerates with heat, light, and moisture exposure, so proper storage is critical.

Q: Can azobis compounds be customized for specific polymerization processes?

A: Yes, suppliers can adjust particle size, solubility, and half-life characteristics to meet specific process requirements, ensuring optimal polymerization control and efficiency.

Q: Are there liquid formulations of azobis compounds?

A: Yes, some azobis initiators are available in solution form to improve handling safety, reduce dust hazards, and allow easier dosing in industrial polymerization systems.

Q: What quality documentation should be provided with shipments?

A: Standard documentation includes Certificate of Analysis (COA), Safety Data Sheet (SDS), Technical Data Sheet (TDS), and where applicable, half-life data, purity verification, and handling instructions.

We're well-known as one of the most experienced azobis compounds enterprises in China for 20 years. Please feel free to buy discount azobis compounds made in China here and get free sample from our factory. For price consultation, contact us.

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