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    • Tetraethylene Pentamine CAS 112-57-2
    • Tetraethylene Pentamine CAS 112-57-2

    Tetraethylene Pentamine CAS 112-57-2

    Tetraethylene Pentamine (TEPA), CAS 112-57-2, is a polyamine epoxy curing agent and resin intermediate. Confirm the required amine value, purity and handling requirements for the intended application.

    • CAS: 112-57-2
    • Synonyms: TEPA, 1,4,7,10,13-Pentaazatridecane, 3,6,9-Triazaundecamethylenediamine
    • Einecs: 203-986-2
    • Molecular Formula: C₈H₂₃N₅
    • Grade: Industrial grade 99%
    • Package: 200kg iron drum or 50kg plastic drum packing
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    Product Description

    Tetraethylene Pentamine (TEPA), CAS 112-57-2, is a linear polyamine also named 1,4,7,10,13-pentaazatridecane; the EC/EINECS number is 203-986-2.

    Synonyms: TEPA; 1,4,7,10,13-Pentaazatridecane; 3,6,9-Triazaundecamethylenediamine.

    CAS: 112-57-2.

    Molecular formula: C₈H₂₃N₅.

    Molecular weight: 189.30.

    EC number: 203-986-2.

    It is a clear to pale-yellow, viscous, hygroscopic liquid with an amine odor.

    Typical properties include melting point about -40 °C, boiling point about 340 °C, flash point about 185 °C, and relative density about 0.998 at 25 °C.

    It is widely used as an epoxy-resin curing agent and as an intermediate for polyamide resins, cation-exchange resins, corrosion inhibitors, and lubricating-oil or fuel-oil additives.

    It also appears in asphalt additives, mineral-processing aids, surfactants, sealants, textile chemicals and rubber accelerators.

    Confirm assay or amine value, color, water content, viscosity and the profile of related ethyleneamine oligomers; amine value is especially important for calculating the correct epoxy mix ratio.

    Store in tightly closed containers in a cool, ventilated area away from heat, sparks, open flames and strong oxidizers. Keep the material dry and use suitable PPE because TEPA is corrosive and can irritate the skin, eyes and respiratory tract.

    Confirm the current product-specific specification.

    Confirm packaging with the requested quantity and destination requirements.

    Document requirements should be confirmed from the current specification, SDS, COA, or other product-specific files.

    Regulated-use suitability must be confirmed separately with current product-specific documentation.

    The page is an RFQ entry point and does not state stock, price, MOQ, or fixed lead time.

    For an RFQ, state the intended use, required specification, quantity, packaging, destination, and document needs.

    FAQ - Technical & Supply Chain

    • Q:

      What is Tetraethylene Pentamine and how is it identified?

      A: Tetraethylene pentamine, commonly called TEPA, is a linear polyamine with CAS 112-57-2, molecular formula C₈H₂₃N₅ and molecular weight about 189.30. It is also named 1,4,7,10,13-pentaazatridecane.
    • Q:

      Which specifications should be checked before purchasing TEPA?

      A: Confirm assay or amine value, color, water content, viscosity and the profile of related ethyleneamine oligomers. Because TEPA is used as an epoxy curing agent and resin intermediate, amine value is especially important for calculating the correct mix ratio.
    • Q:

      What is Tetraethylene Pentamine used for?

      A: It is used as an epoxy-resin curing agent and as an intermediate for polyamide resins, cation-exchange resins, corrosion inhibitors and lubricating-oil or fuel-oil additives. It also appears in asphalt additives, mineral-processing aids, surfactants, sealants and textile chemicals.
    • Q:

      Why is TEPA selected as an epoxy curing agent?

      A: TEPA has multiple reactive amine groups, so it can produce a highly crosslinked epoxy network with good reactivity and adhesion. The resulting cured systems are used in coatings, adhesives, composites and sealants where a balance of cure speed and mechanical strength is required.
    • Q:

      How should TEPA be stored and handled?

      A: Store in tightly closed containers in a cool, ventilated area away from heat, sparks, open flames and strong oxidizers. Keep the material dry and use suitable PPE because TEPA is corrosive and can irritate the skin, eyes and respiratory tract.

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