Cas no 6434-78-2 (trans-2-Nonene)

Technical Introduction: trans-2-Nonene trans-2-Nonene (C?H??) is a linear unsaturated hydrocarbon featuring a trans-configuration double bond at the second carbon position. This high-purity alkene is valued for its role as an intermediate in organic synthesis, particularly in the production of flavors, fragrances, and specialty chemicals. Its well-defined structure and reactivity make it suitable for controlled reactions, including hydrogenation, oxidation, and polymerization. The trans-configuration ensures stability and predictable behavior in synthetic applications. With a low water solubility and clear liquid form, it is compatible with nonpolar solvents, facilitating use in laboratory and industrial settings. Proper handling under inert conditions is recommended due to its flammability and sensitivity to oxidation.
trans-2-Nonene structure
trans-2-Nonene structure
Product Name:trans-2-Nonene
CAS No:6434-78-2
MF:C9H18
MW:126.239223003387
CID:516412
PubChem ID:5364590
Update Time:2025-11-02

trans-2-Nonene Chemical and Physical Properties

Names and Identifiers

    • trans-2-Nonene
    • 2-Nonene, (2E)-
    • &#946
    • (E)- and (Z)-2-Nonene
    • (E)-2-C9H18
    • (E)-2-Nonene
    • (E)-non-2-ene
    • trans-2-Nonene100μg
    • -trans-Nonene
    • CAA21638
    • DTXSID60883134
    • EINECS 229-216-5
    • NS00007166
    • 6434-78-2
    • 2216-38-8
    • D91716
    • 2-Nonene, (E)-
    • UNII-W20AXW806F
    • (2E)-NON-2-ENE
    • MFCD00009549
    • W20AXW806F
    • (2E)-2-Nonene
    • Q27292204
    • .BETA.-TRANS-NONENE
    • MDL: MFCD00009549
    • Inchi: 1S/C9H18/c1-3-5-7-9-8-6-4-2/h3,5H,4,6-9H2,1-2H3/b5-3+
    • InChI Key: IICQZTQZQSBHBY-HWKANZROSA-N
    • SMILES: C(CC/C=C/C)CCC

Computed Properties

  • Exact Mass: 126.14094
  • Monoisotopic Mass: 126.141
  • Isotope Atom Count: 0
  • Hydrogen Bond Donor Count: 0
  • Hydrogen Bond Acceptor Count: 0
  • Heavy Atom Count: 9
  • Rotatable Bond Count: 5
  • Complexity: 62.4
  • Covalently-Bonded Unit Count: 1
  • Defined Atom Stereocenter Count: 0
  • Undefined Atom Stereocenter Count : 0
  • Defined Bond Stereocenter Count: 1
  • Undefined Bond Stereocenter Count: 0
  • XLogP3: 4.8
  • Topological Polar Surface Area: 0A^2

Experimental Properties

  • Density: 0.734?g/mL?at 25?°C(lit.)
  • Melting Point: -89.14°C (estimate)
  • Boiling Point: 144-145?°C(lit.)
  • Flash Point: 90?°F
  • Refractive Index: n20/D 1.42(lit.)
  • PSA: 0
  • LogP: 3.53290

trans-2-Nonene Security Information

  • Hazardous Material transportation number:UN 3295 3/PG 3
  • WGK Germany:3
  • Hazard Category Code: 10
  • Safety Instruction: 16-29-33
  • Risk Phrases:R10
  • HazardClass:3.2
  • PackingGroup:III

trans-2-Nonene Pricemore >>

Related Categories No. Product Name Cas No. Purity Specification Price update time Inquiry
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Additional information on trans-2-Nonene

Comprehensive Guide to trans-2-Nonene (CAS No. 6434-78-2): Properties, Applications, and Industry Insights

trans-2-Nonene (CAS No. 6434-78-2) is a nine-carbon unsaturated hydrocarbon belonging to the alkene family. This alpha-olefin is characterized by its trans-configuration at the second carbon, which significantly influences its chemical behavior and industrial utility. With growing interest in specialty chemicals and flavor/fragrance intermediates, this compound has garnered attention for its unique structural properties and versatile applications.

The molecular structure of trans-2-Nonene features a C=C double bond at the 2-position, contributing to its reactivity in organic synthesis. Unlike its cis-isomer, the trans-configuration provides greater thermodynamic stability, making it preferable for certain industrial processes. Researchers frequently search for "trans-2-Nonene vs cis-2-Nonene differences" or "6434-78-2 boiling point," reflecting the compound's technical relevance in comparative studies.

In the flavor and fragrance industry, trans-2-Nonene serves as a key intermediate for producing green notes and citrus-like aromas. Its degradation products contribute to the characteristic scents of cucumber and melon rinds—a fact that prompts frequent searches like "natural aroma compounds from nonene." The compound's low odor threshold makes it valuable for creating subtle, fresh top notes in perfumery.

From a material science perspective, 6434-78-2 demonstrates interesting properties when used in polymer modification. Its terminal double bond allows for copolymerization with ethylene or propylene, creating branched polyolefins with improved flexibility. Industry professionals often inquire about "nonene-based plasticizers" or "olefin metathesis with trans-2-Nonene," highlighting its role in advanced material development.

The synthetic methodology for trans-2-Nonene typically involves Wittig reactions or cross-metathesis of shorter alkenes. Recent green chemistry trends have spurred research into catalytic processes using biobased feedstocks, addressing queries like "sustainable production of C9 alkenes." The compound's vapor pressure (often searched alongside "6434-78-2 safety data") makes it suitable for gas-phase reactions in controlled environments.

Analytical characterization of trans-2-Nonene relies heavily on GC-MS and FTIR spectroscopy, with the =C-H out-of-plane deformation at ~965 cm-1 serving as a diagnostic peak for the trans-alkene configuration. Laboratories frequently search for "NMR spectra of 6434-78-2" or "nonene isomer separation by HPLC," underscoring the compound's analytical challenges.

Emerging applications in agrochemicals utilize trans-2-Nonene derivatives as semiochemicals—substances that influence insect behavior. This aligns with the increasing demand for eco-friendly pest control solutions, reflected in search trends like "plant-derived insect attractants." The compound's volatility profile makes it ideal for slow-release formulations in crop protection.

Storage and handling of 6434-78-2 require attention to its peroxidation tendency, a common query among industrial users ("stabilizers for trans-2-Nonene"). Best practices recommend nitrogen blanketing and antioxidant additives to maintain purity. The compound's flash point (~50°C) and miscibility with organic solvents are frequently referenced in process safety discussions.

Market analysts note rising demand for high-purity trans-2-Nonene (>98%), particularly from the electronic chemicals sector where it aids in semiconductor cleaning formulations. This niche application drives searches for "ultrapure C9 alkenes suppliers" and "nonene in wafer fabrication," illustrating the compound's expanding technological relevance.

Environmental fate studies indicate that trans-2-Nonene undergoes rapid photooxidation in air (half-life <4 hours), addressing concerns about "persistence of medium-chain alkenes." Its low aquatic toxicity and ready biodegradability make it compliant with modern green chemistry principles, a key consideration for sustainable manufacturing.

Future research directions for 6434-78-2 may explore its potential in biofuel additives or as a precursor for renewable diesel components—topics generating searches like "olefins in alternative fuels." The compound's balance of reactivity and stability positions it well for emerging energy applications.

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