Propyleneimine

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  • Identifiers

    CAS number
    75-55-8

    Molecular formula
    C3H7N

    SMILES
    CC1CN1

    Safety labels

    Flammable
    Flammable

    Corrosive
    Corrosive

    Acute Toxic
    Acute Toxic

    Health Hazard
    Health

    Environmental Hazard
    Environmental

  • Odor profile

    Fragrance
    Fishy 67.98%
    Nutty 47.52%
    Roasted 40.59%
    Odorless 38.8%
    Popcorn 36.74%
    Meaty 32.46%
    Cheesy 27.11%
    Burnt 23.74%
    Cocoa 21.73%
    Ripe 21.54%

     

    Flavor
    Bitter 35.34%
    Roasted 28.79%
    Ammoniacal 28.04%
    Sweet 25.92%
    Alkaline 25.64%
    Odorless 23.58%
    Animal 23.58%
    Amine 23.4%
    Sulfurous 23.31%
    Cauliflower 22.09%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    0.0

    pKa est.
    5.08 (weak acid)

    Molecular weight
    57.09 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra fast

    Melting point expt.

    • -85 °F (EPA, 1998)
    • -65 °C
    • -63 °C
    • -85 °F

    Boiling point

    • 151 to 153 °F at 760 mmHg (EPA, 1998)
    • 67 °C
    • 152 °F

    Flash point

    • -11.83 ˚C est.
    • 25 °F (EPA, 1998)
    • -3 °C
    • -3.9 °C, closed cup
    • -18 °C c.c.
    • 25 °F

    Solubility expt.

    • greater than or equal to 100 mg/mL at 66 °F (NTP, 1992)
    • In water, miscible in all proportions
    • Soluble in ethanol
    • Soluble in most organic solvents
    • Solubility in water: miscible
    • Miscible

  • Synonyms

    • 2-Methylaziridine
    • PROPYLENEIMINE
    • Aziridine, 2-methyl-
    • Propylenimine
    • 75-55-8
    • Methylaziridine
    • 1,2-Propylenimine
    • 2-Methylethylenimine
    • Methylethylenimine
    • Propylene imine
    • 1,2-Propyleneimine
    • 2-Methylazacyclopropane
    • 2-Methyl aziridine
    • Propilenimina
    • RCRA waste number P067
    • Propilenimina [Spanish]
    • NSC 20655
    • CCRIS 539
    • HSDB 739
    • EINECS 200-878-7
    • ULC972Q7TZ
    • UN1921
    • BRN 0102386
    • DTXSID8024286
    • AI3-50325
    • Propyleneimine, inhibited
    • NSC-20655
    • PROPYLENEIMINE [HSDB]
    • DTXCID604286
    • CHEBI:82340
    • 2-METHYLAZIRIDINE [IARC]
    • 2-methylaziridine (propylenimine)
    • EC 200-878-7
    • 5-20-01-00150 (Beilstein Handbook Reference)
    • NSC20655
    • 2-METHYLAZIRIDINE, (+/-)-
    • (R)-2-Methylaziridine, 1M in toluene
    • Propilenimina (Spanish)
    • 2-METHYLAZIRIDINE (IARC)
    • Aziridine, 2-methyl-, (2S)-
    • 2-methylethyleneimine
    • DL-2-Methylaziridine
    • RCRA waste no. P067
    • UNII-ULC972Q7TZ
    • Propylene imine (inhibited)
    • 2methylaziridine
    • Methylethyleneimine
    • 1,2Propylenimine
    • 1,2Propyleneimine
    • 2Methylethylenimine
    • 2-methyl-aziridine
    • Aziridine, 2methyl
    • Aziridina, 2-metil
    • 2Methylazacyclopropane
    • 2-Methylethylen imine
    • Propylene-1,2-imine
    • Propylene imine, inhibited
    • WLN: T3MTJ B1
    • UN 1921 (Salt/Mix)
    • Aziridina, 2-metil (Spanish)
    • Propylene imine (ACGIH:OSHA)
    • CHEMBL3183775
    • OZDGMOYKSFPLSE-UHFFFAOYSA-
    • 2-?Methylaziridine (Propylenimine)
    • Tox21_202944
    • STL168051
    • AKOS005366679
    • CAS-75-55-8
    • NCGC00260490-01
    • 2-Methylaziridine, technical grade, 90%
    • DB-016804
    • NS00003777
    • C19257
    • Q7250470
    • InChI=1/C3H7N/c1-3-2-4-3/h3-4H,2H2,1H3
    • Propyleneimine, inhibited [UN1921] [Flammable liquid]
    • 200-878-7

  • Applications

    Propyleneimine (CAS 75-55-8) is primarily used as an organic synthesis intermediate and a building block for amino-functional compounds, including polyamines and related derivatives; it serves as a curing agent for epoxy resins and other polymer systems; it participates in the synthesis of components for coatings, adhesives, and plastics; it is a precursor for specialty chemicals and pharmaceutical intermediates; and it is used as a starting point for materials for electronics and other functional polymers.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 191.75
    methanol 291.81
    isopropanol 96.95
    water 13.18
    ethyl acetate 33.43
    n-propanol 119.29
    acetone 79.73
    n-butanol 90.72
    acetonitrile 55.11
    DMF 117.36
    toluene 7.51
    isobutanol 67.77
    1,4-dioxane 64.7
    methyl acetate 46.17
    THF 119.17
    2-butanone 50.06
    n-pentanol 51.74
    sec-butanol 67.54
    n-hexane 4.5
    ethylene glycol 138.22
    NMP 97.78
    cyclohexane 6.57
    DMSO 121.75
    n-butyl acetate 51.24
    n-octanol 25.87
    chloroform 78.0
    n-propyl acetate 26.12
    acetic acid 298.81
    dichloromethane 49.07
    cyclohexanone 62.93
    propylene glycol 149.36
    isopropyl acetate 18.16
    DMAc 82.87
    2-ethoxyethanol 79.13
    isopentanol 49.23
    n-heptane 9.98
    ethyl formate 36.94
    1,2-dichloroethane 27.22
    n-hexanol 84.37
    2-methoxyethanol 146.18
    isobutyl acetate 18.57
    tetrachloromethane 20.45
    n-pentyl acetate 20.14
    transcutol 139.49
    n-heptanol 34.3
    ethylbenzene 3.83
    MIBK 16.93
    2-propoxyethanol 137.18
    tert-butanol 66.19
    MTBE 26.66
    2-butoxyethanol 61.81
    propionic acid 134.64
    o-xylene 6.55
    formic acid 172.45
    diethyl ether 29.09
    m-xylene 6.21
    p-xylene 6.23
    chlorobenzene 16.27
    dimethyl carbonate 17.08
    n-octane 2.48
    formamide 110.07
    cyclopentanone 92.67
    2-pentanone 31.84
    anisole 13.97
    cyclopentyl methyl ether 40.18
    gamma-butyrolactone 94.59
    1-methoxy-2-propanol 94.66
    pyridine 54.42
    3-pentanone 26.48
    furfural 81.95
    n-dodecane 1.84
    diethylene glycol 137.08
    diisopropyl ether 7.64
    tert-amyl alcohol 51.66
    acetylacetone 30.52
    n-hexadecane 1.92
    acetophenone 17.61
    methyl propionate 35.55
    isopentyl acetate 33.81
    trichloroethylene 59.54
    n-nonanol 21.62
    cyclohexanol 55.72
    benzyl alcohol 25.18
    2-ethylhexanol 37.95
    isooctanol 21.6
    dipropyl ether 34.75
    1,2-dichlorobenzene 14.59
    ethyl lactate 26.83
    propylene carbonate 46.75
    n-methylformamide 95.95
    2-pentanol 41.46
    n-pentane 5.61
    1-propoxy-2-propanol 96.75
    1-methoxy-2-propyl acetate 43.37
    2-(2-methoxypropoxy) propanol 44.26
    mesitylene 4.26
    ε-caprolactone 51.68
    p-cymene 9.04
    epichlorohydrin 61.26
    1,1,1-trichloroethane 26.74
    2-aminoethanol 168.98
    morpholine-4-carbaldehyde 85.81
    sulfolane 100.6
    2,2,4-trimethylpentane 3.26
    2-methyltetrahydrofuran 66.05
    n-hexyl acetate 24.73
    isooctane 2.19
    2-(2-butoxyethoxy)ethanol 63.97
    sec-butyl acetate 14.12
    tert-butyl acetate 17.4
    decalin 2.54
    glycerin 167.21
    diglyme 85.49
    acrylic acid 136.17
    isopropyl myristate 10.39
    n-butyric acid 105.37
    acetyl acetate 24.0
    di(2-ethylhexyl) phthalate 17.05
    ethyl propionate 18.57
    nitromethane 141.13
    1,2-diethoxyethane 34.2
    benzonitrile 25.45
    trioctyl phosphate 12.76
    1-bromopropane 17.07
    gamma-valerolactone 95.49
    n-decanol 16.12
    triethyl phosphate 15.34
    4-methyl-2-pentanol 19.14
    propionitrile 42.65
    vinylene carbonate 41.93
    1,1,2-trichlorotrifluoroethane 111.65
    DMS 19.08
    cumene 3.88
    2-octanol 16.41
    2-hexanone 26.36
    octyl acetate 16.53
    limonene 15.83
    1,2-dimethoxyethane 60.88
    ethyl orthosilicate 15.3
    tributyl phosphate 15.07
    diacetone alcohol 37.17
    N,N-dimethylaniline 11.43
    acrylonitrile 54.33
    aniline 30.42
    1,3-propanediol 131.88
    bromobenzene 11.49
    dibromomethane 31.82
    1,1,2,2-tetrachloroethane 51.07
    2-methyl-cyclohexyl acetate 23.52
    tetrabutyl urea 18.96
    diisobutyl methanol 16.82
    2-phenylethanol 35.18
    styrene 5.89
    dioctyl adipate 17.45
    dimethyl sulfate 26.48
    ethyl butyrate 28.0
    methyl lactate 44.6
    butyl lactate 29.36
    diethyl carbonate 18.06
    propanediol butyl ether 63.34
    triethyl orthoformate 23.93
    p-tert-butyltoluene 9.0
    methyl 4-tert-butylbenzoate 21.43
    morpholine 93.34
    tert-butylamine 37.78
    n-dodecanol 12.69
    dimethoxymethane 43.11
    ethylene carbonate 34.54
    cyrene 39.93
    2-ethoxyethyl acetate 26.14
    2-ethylhexyl acetate 27.37
    1,2,4-trichlorobenzene 20.67
    4-methylpyridine 32.95
    dibutyl ether 15.22
    2,6-dimethyl-4-heptanol 16.82
    DEF 41.91
    dimethyl isosorbide 53.01
    tetrachloroethylene 44.63
    eugenol 26.98
    triacetin 29.05
    span 80 50.35
    1,4-butanediol 68.68
    1,1-dichloroethane 30.11
    2-methyl-1-pentanol 30.96
    methyl formate 57.67
    2-methyl-1-butanol 52.59
    n-decane 2.91
    butyronitrile 40.02
    3,7-dimethyl-1-octanol 21.3
    1-chlorooctane 8.53
    1-chlorotetradecane 3.89
    n-nonane 2.85
    undecane 2.2
    tert-butylcyclohexane 2.66
    cyclooctane 2.39
    cyclopentanol 83.36
    tetrahydropyran 57.14
    tert-amyl methyl ether 20.93
    2,5,8-trioxanonane 66.95
    1-hexene 11.08
    2-isopropoxyethanol 49.75
    2,2,2-trifluoroethanol 85.0
    methyl butyrate 25.76

    Scent© AI

1 4

IFRA standard 51

Recommendation
No restriction
Maximum acceptable concentrations in the finished product (%)
Category 1
Products applied to the lips
 No restriction Category 7A
Rinse-off products applied to the hair with some hand contact
 No restriction
Category 2
Products applied to the axillae
 No restriction Category 7B
Leave-on products applied to the hair with some hand contact
 No restriction
Category 3
Products applied to the face/body using fingertips
 No restriction Category 8
Products with significant anogenital exposure
 No restriction
Category 4
Products related to fine fragrance
 No restriction Category 9
Products with body and hand exposure, primarily rinse off
 No restriction
Category 5A
Body lotion products applied to the body using the hands (palms), primarily leave on
 No restriction Category 10A
Household care products with mostly hand contact
 No restriction
Category 5B
Face moisturizer products applied to the face using the hands (palms), primarily leave on
 No restriction Category 10B
Household care products with mostly hand contact, including aerosol/spray products (with potential leave-on skin contact)
 No restriction
Category 5C
Hand cream products applied to the hands using the hands (palms), primarily leave on
 No restriction Category 11A
Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate without UV exposure
 No restriction
Category 5D
Baby Creams, baby Oils and baby talc
 No restriction Category 11B
Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate with potential UV exposure
 No restriction
Category 6
Products with oral and lip exposure
 No restriction Category 12
Products not intended for direct skin contact, minimal or insignificant transfer to skin
 No restriction