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N-[3-(dimethylamino)propyl]-N, N’, N’-trimethyl-1, 3-propanediamine Cas#3855-32-1 Featured Image
  • N-[3-(dimethylamino)propyl]-N, N’, N’-trimethyl-1, 3-propanediamine Cas#3855-32-1
  • N-[3-(dimethylamino)propyl]-N, N’, N’-trimethyl-1, 3-propanediamine Cas#3855-32-1
  • N-[3-(dimethylamino)propyl]-N, N’, N’-trimethyl-1, 3-propanediamine Cas#3855-32-1

N-[3-(dimethylamino)propyl]-N, N’, N’-trimethyl-1, 3-propanediamine Cas#3855-32-1

  • MOFAN Grade: MOFAN 77
  • Competitor Brand: 77 by Evonik; JEFFCAT ZR40 by Huntsman
  • Chemical name: N-[3-(dimethylamino)propyl]-N,N',N'-trimethyl-1,3-propanediamine; (3-{[3-(dimethylamino)propyl](methyl)amino}propyl)dimethylamine; Pentamethyldipropylenetriamine
  • Cas Number: 3855-32-1
  • Molecular fomula: C11H27N3
  • Molecular weight: 201.35

    • Product Detail

    Product Tags

    Description

    MOFAN 77 is a tertiary amine catalyst that can balance the reaction of urethane (polyol-isocyanate) and urea (isocyanate-water) in various flexible and rigid polyurethane foams; MOFAN 77 can improve the opening of flexible foam and reduce the brittleness and adhesion of rigid foam; MOFAN 77 is mainly used in the production of car seats and pillows, rigid polyether block foam.

    Application

    MOFAN 77 is used for automative interiors, seat, cell open rigid foam etc.

    MOFANCAT T003
    MOFANCAT T001
    MOFANCAT T002

    Typical Properties

    Appearance Colorless  Liquid
    Viscosity@25℃ mPa*.s 3
    Calculated OH Number (mgKOH/g) 0
    Specific Gravity@, 25℃(g/cm³) 0.85
    Flash point, PMCC, ℃ 92
    Water solubilty Soluble

    Commercial specification

    Purity  (%) 98.00min
    Water content (%) 0.50max

    Package

     170 kg / drum or according to customer needs.

    Hazard statements

    H302: Harmful if swallowed.

    H311: Toxic in contact with skin.

    H412: Harmful to aquatic life with long lasting effects.

    H314: Causes severe skin burns and eye damage.

    Label elements

    2
    3

     Pictograms

    Signal word Danger
    UN number 2922
    Class 8(6.1)
    Proper shipping name and description CORROSIVE LIQUID, TOXIC, N.O.S., (Bis (dimethylaminopropyl) methylamine)

    Handling and storage

    Precautions for safe handling
    Avoid contact with skin and eyes. Use only in well-ventilated areas.

    Avoid breathing vapors and/or aerosols.
    Emergency showers and eye wash stations should be readily accessible.
    Adhere to work practice rules established by government regulations.
    Use personal protective equipment.
    When using, do not eat, drink or smoke.  

    Conditions for safe storage, including any incompatibilities
    Store in steel containers preferably located outdoors, above ground, and surrounded by dikes to contain spills or leaks. Do not store near acids. Keep containers tightly closed in a dry, cool and well-ventilated place. To avoid ignition of vapors by static electricity discharge, all metal parts of the equipment must be grounded. Keep away from heat and sources of ignition. Keep in a dry, cool place. Keep away from Oxidizers.

    Do not store in reactive metal containers. Keep away from open flames, hot surfaces and sources of ignition.

    FAQ

    I need a very low-odor catalyst for automotive seat foam. Is MOFAN 77 suitable?

    Yes, it is a low-emission, reactive catalyst that chemically binds into the foam, reducing fogging and odor.

    My high-resilience foam has poor compression set. Can MOFAN 77 improve it?

    By providing a more uniform crosslinking, it can improve compression set by 10–15% compared to conventional catalysts.

    What is the recommended dosage for a low-VOC molded foam formulation?

    0.2–0.4 phr, often used together with MOFAN 2040 to achieve total amine emission below 50 µg/g.

    Can MOFAN 77 be used in waterborne polyurethane adhesives?

    Yes, it is compatible with water systems and does not cause excessive thickening.

    My elastomer parts have a tacky surface after demolding. How to solve?

    Increase MOFAN 77 by 0.1 phr to ensure complete surface cure; it has a reactive hydroxyl group.

    Does MOFAN 77 work in polyurethane sealants for construction joints?

    Yes, it provides good adhesion and fast skin formation without cracking.

    How can I formulate a zero-amine-bloom flexible foam for medical applications?

    Use MOFAN 77 as the sole amine catalyst (0.35–0.5 phr) plus a tin catalyst; post-cure at 70°C for 4h.

    Is MOFAN 77 compatible with low-odor polyols (e.g., EO-capped)?

    Fully compatible; it does not cause any side reactions or discoloration.

    What catalyst combination gives the best balance of open time and cure speed for a two-component PU glue?

    MOFAN 77 (0.2 phr) + MOFAN 8 (0.1 phr) gives about 15 minutes open time and full cure in 2h.

    My spray polyurea formulation is too fast. Can MOFAN 77 slow it down?

    No, it’s not a retarder. Use a blocked amine or a weaker catalyst like MOFAN DMAAE.

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