What is the structure of CAS 3425-61-4?

Nov 03, 2025Leave a message

CAS 3425-61-4, also known as 1,1,3,3-Tetramethylbutyl hydroperoxide, is a significant organic peroxide with a wide range of applications in various industries. As a reliable supplier of CAS 3425-61-4, I am well - versed in its structure, properties, and applications. In this blog, I will delve into the structure of CAS 3425-61-4, exploring its chemical makeup and how it relates to its functions.

Chemical Structure Basics

To understand the structure of CAS 3425-61-4, we first need to break down its chemical formula, which is C₈H₁₈O₂. The structure of this compound consists of a central oxygen - oxygen (O - O) bond, which is characteristic of peroxides. This O - O bond is relatively weak compared to other covalent bonds, making peroxides highly reactive.

The 1,1,3,3 - Tetramethylbutyl part of the name describes the alkyl group attached to the hydroperoxide moiety. The butyl chain forms the backbone of the molecule, with four methyl groups (CH₃) attached at the 1 and 3 positions. This arrangement of methyl groups around the butyl chain affects the physical and chemical properties of the compound.

Let's start by looking at the butyl chain. A butyl group is a four - carbon chain (C₄H₉). In the case of 1,1,3,3 - Tetramethylbutyl, the carbon atoms at the first and third positions of the butyl chain have three methyl groups attached to them. This high degree of substitution around the carbon atoms in the chain leads to increased steric hindrance. Steric hindrance refers to the repulsion between atoms or groups of atoms due to their physical bulk. In the case of CAS 3425-61-4, the steric hindrance around the butyl chain can influence the reactivity of the molecule, as it can make it more difficult for other molecules to approach the reactive O - O bond.

The hydroperoxide group (-OOH) is attached to one end of the 1,1,3,3 - Tetramethylbutyl group. The oxygen - hydrogen (O - H) bond in the hydroperoxide group can participate in hydrogen bonding. Hydrogen bonding occurs when a hydrogen atom is attracted to an electronegative atom, such as oxygen. In the case of CAS 3425-61-4, the hydrogen bonding can affect the solubility and boiling point of the compound.

Physical and Chemical Properties Related to Structure

The structure of CAS 3425-61-4 has a direct impact on its physical and chemical properties. Due to the presence of the weak O - O bond, it is a strong oxidizing agent. This property makes it useful in many chemical reactions where oxidation is required. For example, it can be used in polymerization reactions to initiate the formation of polymers. The reactive O - O bond can break under certain conditions, generating free radicals. These free radicals can then react with monomers, starting the polymerization process.

The steric hindrance caused by the four methyl groups on the butyl chain can also affect the stability of the compound. The bulky methyl groups can shield the O - O bond to some extent, making it less likely to react with other molecules in an uncontrolled manner. However, this does not mean that CAS 3425-61-4 is completely stable. It still needs to be handled with care, as peroxides can decompose exothermically, releasing a large amount of heat and potentially causing explosions if not stored and used properly.

In terms of physical properties, the presence of hydrogen bonding in the hydroperoxide group can increase the boiling point of the compound compared to non - hydrogen - bonding molecules of similar molecular weight. It also affects the solubility of CAS 3425-61-4. The compound is soluble in many organic solvents, such as hydrocarbons and ethers, but its solubility in water is limited due to the hydrophobic nature of the 1,1,3,3 - Tetramethylbutyl group.

Comparison with Other Organic Peroxides

When comparing CAS 3425-61-4 with other organic peroxides, such as Cumene Hydroperoxide 80S, TBHP | CAS 75 - 91 - 2 | Tert - butyl Hydroperoxide, and LPO | CAS 105 - 74 - 8 | Dilauroyl Peroxide, we can see some distinct differences in their structures and properties.

Cumene hydroperoxide has an isopropylbenzene group attached to the hydroperoxide moiety. The presence of the benzene ring in cumene hydroperoxide gives it different reactivity patterns compared to CAS 3425-61-4. The benzene ring can participate in resonance, which can affect the stability of the free radicals formed during the decomposition of the peroxide.

Tert - butyl hydroperoxide (TBHP) has a tert - butyl group attached to the hydroperoxide. The tert - butyl group is a highly branched alkyl group, similar to the 1,1,3,3 - Tetramethylbutyl group in CAS 3425-61-4. However, the tert - butyl group has a different structure and steric arrangement compared to the 1,1,3,3 - Tetramethylbutyl group. This can lead to differences in reactivity and stability between the two compounds.

Dilauroyl peroxide (LPO) has two lauroyl groups attached to the peroxide oxygen atoms. Lauroyl groups are long - chain fatty acid groups, which make LPO more hydrophobic compared to CAS 3425-61-4. The long - chain nature of the lauroyl groups also affects the physical properties of LPO, such as its melting point and solubility.

Applications Based on Structure

The unique structure of CAS 3425-61-4 makes it suitable for a variety of applications. As mentioned earlier, it is commonly used as an initiator in polymerization reactions. Its ability to generate free radicals under appropriate conditions allows it to start the polymerization of monomers such as vinyl chloride, styrene, and acrylonitrile.

In the field of organic synthesis, CAS 3425-61-4 can be used as an oxidizing agent. It can oxidize various organic compounds, such as alcohols to aldehydes or ketones. The reactivity of the O - O bond and the steric hindrance of the 1,1,3,3 - Tetramethylbutyl group can be carefully controlled to achieve selective oxidation reactions.

It is also used in the production of lubricants and fuels. In these applications, its oxidizing properties can be used to improve the performance and stability of the products.

LPO | CAS 105-74-8 | Dilauroyl PeroxideTBHP | CAS 75-91-2 | Tert-butyl Hydroperoxide

Quality Assurance as a Supplier

As a supplier of CAS 3425-61-4, I understand the importance of providing high - quality products. We ensure that our CAS 3425-61-4 is produced under strict quality control measures. Our manufacturing process is designed to maintain the purity and stability of the compound. We conduct regular quality checks on our products, including tests for purity, moisture content, and reactivity.

We also pay close attention to the storage and transportation of CAS 3425-61-4. Due to its reactive nature, it needs to be stored in a cool, dry place away from heat and sources of ignition. Our packaging is designed to prevent any leakage or contamination during transportation.

Conclusion

In conclusion, the structure of CAS 3425-61-4, with its characteristic O - O bond, substituted butyl chain, and hydroperoxide group, plays a crucial role in determining its physical and chemical properties. These properties, in turn, make it suitable for a wide range of applications in various industries. Whether you are involved in polymerization, organic synthesis, or the production of lubricants and fuels, CAS 3425-61-4 can be a valuable chemical in your processes.

If you are interested in purchasing CAS 3425-61-4 for your business, I encourage you to reach out for a detailed discussion. We can provide you with more information about our products, including specifications, pricing, and delivery options. Contact us to start a procurement discussion and find out how our high - quality CAS 3425-61-4 can meet your needs.

References

  • March, J. (1992). Advanced Organic Chemistry: Reactions, Mechanisms, and Structure. John Wiley & Sons.
  • Carey, F. A., & Sundberg, R. J. (2007). Advanced Organic Chemistry Part A: Structure and Mechanisms. Springer.

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