Trimellitic anhydride chloride

Overview IFRA Request a quote

  • Identifiers

    CAS number
    1204-28-0

    Molecular formula
    C9H3ClO4

    SMILES
    C1=CC2=C(C=C1C(=O)Cl)C(=O)OC2=O

    Safety labels

    Corrosive
    Corrosive

  • Odor profile

    Fragrance
    Odorless 52.47%
    Sweet 40.39%
    Nutty 34.05%
    Burnt 33.22%
    Phenolic 29.77%
    Balsamic 27.77%
    Caramellic 26.8%
    Bitter 25.23%
    Coumarinic 24.72%
    Sour 23.73%

     

    Flavor
    Bitter 63.97%
    Odorless 38.8%
    Very mild 23.77%
    Nitrile 20.69%
    Urine 20.05%
    Fenugreek 20.03%
    Faint 19.9%
    Lovage 19.74%
    Bread crust 19.67%
    Seedy 19.49%

     

    Odor impact est.
    Medium

  • Properties

    XLogP3-AA
    1.8

    pKa est.
    6.4 (neutral)

    Molecular weight
    210.57 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    342°C

    Flash point

    • 193.03 ˚C est.

  • Synonyms

    • Trimellitic anhydride chloride
    • 1204-28-0
    • 4-(Chloroformyl)phthalic anhydride
    • Anhydrotrimellitic acid chloride
    • 5-Isobenzofurancarbonyl chloride, 1,3-dihydro-1,3-dioxo-
    • Trimellitic acid anhydride chloride
    • Trimellitic anhydride acid chloride
    • 4-(Chlorocarbonyl)phthalic anhydride
    • 1,3-Dioxo-1,3-dihydro-2-benzofuran-5-carbonyl chloride
    • Phthalic anhydride, 4-(chloroformyl)-
    • Trimellitic anhydride monochloride
    • 1,3-Benzofurandione-5-carbonyl chloride
    • Trimellitic anhydride monoacid chloride
    • NSC 89728
    • Trimellitic acid anhydride 4-monoacid chloride
    • UNII-56231EU26X
    • EINECS 214-874-8
    • NSC-89728
    • 56231EU26X
    • DTXSID9061621
    • 4-(Chlorocarboxy)benzenedicarboxylic anhydride
    • RefChem:191725
    • DTXCID5033620
    • Phthalic, 4-(chloroformyl)-,anhydride
    • Phthalic anhydride, 4-(chloroformyl)-(8CI)
    • 214-874-8
    • NJMOHBDCGXJLNJ-UHFFFAOYSA-N
    • 4-Chloroformylphthalic anhydride
    • 1,3-dioxo-2-benzofuran-5-carbonyl chloride
    • MFCD00005924
    • 1,3-dioxoisobenzofuran-5-carbonyl chloride
    • 1,3-dioxo-1,3-dihydroisobenzofuran-5-carbonyl chloride
    • C9H3ClO4
    • TrimelliticAnhydrideChloride
    • 1,3-Dioxo-1,3-dihydro-isobenzofuran-5-carbonyl chloride
    • 1,2,4-Benzenetricarboxylic anhydride acid chloride
    • SCHEMBL74379
    • SCHEMBL29490657
    • 4-chlorocarbonylphthalic anhydride
    • NSC89728
    • BBL011371
    • SBB003447
    • STL146468
    • Trimellitic anhydride chloride, 98%
    • AKOS000268753
    • Phthalic , 4-(chloroformyl)-,anhydride
    • AS-15393
    • BP-12576
    • Trimellitic anhydride chloride treated BSA
    • Trimellitic anhydride chloride treated HSA
    • DB-041553
    • 1,3-dioxo-isobenzofuran-5-carbonyl chloride
    • NS00021564
    • ST50214052
    • T1079
    • Trimellitic anhydride chloride treated casein
    • F20325
    • Q7842162
    • 5-Isobenzofurancarbonyl chloride,3-dihydro-1,3-dioxo-
    • 1,3-Dioxo-1,3-dihydro-2-benzofuran-5-carbonyl chloride #
    • Trimellitic anhydride chloride treated .beta.-lactoglobulin from bovine whey
    • 1,3-dioxo-1,3-dihydro-2-benzofuran-5-carbonyl chloride (trimellitic anhydride chloride)
    • 4-Chloroformylphthalic anhydride;5-Isobenzofurancarbonyl chloride, 1,3-dihydro-1,3-dioxo-
    • 1204-28-0

  • Applications

    Trimellitic anhydride chloride, CAS 1204-28-0, is primarily used as an intermediate in the synthesis of high-temperature thermosetting polymers such as polyimides and polyesters, and as a crosslinking or curing agent for epoxy resins used in coatings, paints, and adhesives. It also serves as a specialty monomer for electronic-grade dielectric polymers and protective coatings, and as a reactive building block for functionalized polymers and advanced industrial materials.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 32.1
    methanol 62.2
    isopropanol 19.72
    water 0.73
    ethyl acetate 87.54
    n-propanol 24.78
    acetone 156.75
    n-butanol 22.56
    acetonitrile 60.44
    DMF 515.06
    toluene 27.17
    isobutanol 15.52
    1,4-dioxane 98.33
    methyl acetate 97.26
    THF 127.26
    2-butanone 118.63
    n-pentanol 24.66
    sec-butanol 27.36
    n-hexane 1.01
    ethylene glycol 30.12
    NMP 301.48
    cyclohexane 0.81
    DMSO 279.72
    n-butyl acetate 63.52
    n-octanol 48.31
    chloroform 24.39
    n-propyl acetate 63.57
    acetic acid 34.42
    dichloromethane 35.7
    cyclohexanone 114.94
    propylene glycol 17.7
    isopropyl acetate 64.23
    DMAc 370.88
    2-ethoxyethanol 122.85
    isopentanol 22.94
    n-heptane 2.48
    ethyl formate 57.16
    1,2-dichloroethane 46.1
    n-hexanol 35.77
    2-methoxyethanol 187.96
    isobutyl acetate 22.32
    tetrachloromethane 4.7
    n-pentyl acetate 61.84
    transcutol 358.23
    n-heptanol 35.54
    ethylbenzene 19.34
    MIBK 66.27
    2-propoxyethanol 127.47
    tert-butanol 33.87
    MTBE 36.09
    2-butoxyethanol 82.7
    propionic acid 35.45
    o-xylene 29.6
    formic acid 44.72
    diethyl ether 53.39
    m-xylene 25.53
    p-xylene 20.55
    chlorobenzene 22.57
    dimethyl carbonate 92.81
    n-octane 2.32
    formamide 143.82
    cyclopentanone 140.46
    2-pentanone 111.7
    anisole 69.94
    cyclopentyl methyl ether 65.7
    gamma-butyrolactone 154.72
    1-methoxy-2-propanol 128.17
    pyridine 86.84
    3-pentanone 92.54
    furfural 157.16
    n-dodecane 3.6
    diethylene glycol 133.12
    diisopropyl ether 18.72
    tert-amyl alcohol 37.52
    acetylacetone 173.04
    n-hexadecane 4.23
    acetophenone 88.22
    methyl propionate 104.31
    isopentyl acetate 46.9
    trichloroethylene 76.47
    n-nonanol 47.77
    cyclohexanol 27.68
    benzyl alcohol 57.61
    2-ethylhexanol 27.47
    isooctanol 26.62
    dipropyl ether 37.27
    1,2-dichlorobenzene 29.32
    ethyl lactate 57.82
    propylene carbonate 71.26
    n-methylformamide 200.59
    2-pentanol 23.86
    n-pentane 0.99
    1-propoxy-2-propanol 90.33
    1-methoxy-2-propyl acetate 98.68
    2-(2-methoxypropoxy) propanol 115.37
    mesitylene 17.43
    ε-caprolactone 99.66
    p-cymene 20.77
    epichlorohydrin 138.56
    1,1,1-trichloroethane 23.29
    2-aminoethanol 33.83
    morpholine-4-carbaldehyde 286.88
    sulfolane 195.54
    2,2,4-trimethylpentane 1.44
    2-methyltetrahydrofuran 70.92
    n-hexyl acetate 85.86
    isooctane 1.1
    2-(2-butoxyethoxy)ethanol 146.33
    sec-butyl acetate 43.51
    tert-butyl acetate 69.24
    decalin 1.87
    glycerin 50.02
    diglyme 222.21
    acrylic acid 42.77
    isopropyl myristate 43.6
    n-butyric acid 35.72
    acetyl acetate 52.09
    di(2-ethylhexyl) phthalate 34.97
    ethyl propionate 73.21
    nitromethane 189.63
    1,2-diethoxyethane 105.7
    benzonitrile 60.43
    trioctyl phosphate 29.36
    1-bromopropane 18.01
    gamma-valerolactone 207.55
    n-decanol 39.02
    triethyl phosphate 33.22
    4-methyl-2-pentanol 18.58
    propionitrile 48.82
    vinylene carbonate 73.26
    1,1,2-trichlorotrifluoroethane 117.69
    DMS 87.17
    cumene 14.35
    2-octanol 36.03
    2-hexanone 73.52
    octyl acetate 54.39
    limonene 25.5
    1,2-dimethoxyethane 185.18
    ethyl orthosilicate 28.28
    tributyl phosphate 33.21
    diacetone alcohol 101.0
    N,N-dimethylaniline 59.52
    acrylonitrile 85.25
    aniline 44.01
    1,3-propanediol 45.38
    bromobenzene 18.1
    dibromomethane 17.95
    1,1,2,2-tetrachloroethane 62.37
    2-methyl-cyclohexyl acetate 42.08
    tetrabutyl urea 64.5
    diisobutyl methanol 20.5
    2-phenylethanol 64.3
    styrene 22.05
    dioctyl adipate 50.25
    dimethyl sulfate 158.23
    ethyl butyrate 55.81
    methyl lactate 93.54
    butyl lactate 58.91
    diethyl carbonate 36.3
    propanediol butyl ether 90.86
    triethyl orthoformate 38.65
    p-tert-butyltoluene 19.7
    methyl 4-tert-butylbenzoate 81.79
    morpholine 111.42
    tert-butylamine 15.56
    n-dodecanol 29.59
    dimethoxymethane 244.31
    ethylene carbonate 57.47
    cyrene 101.64
    2-ethoxyethyl acetate 99.91
    2-ethylhexyl acetate 39.83
    1,2,4-trichlorobenzene 39.87
    4-methylpyridine 97.65
    dibutyl ether 45.77
    2,6-dimethyl-4-heptanol 20.5
    DEF 179.19
    dimethyl isosorbide 152.43
    tetrachloroethylene 41.88
    eugenol 101.85
    triacetin 91.44
    span 80 75.77
    1,4-butanediol 27.18
    1,1-dichloroethane 25.38
    2-methyl-1-pentanol 24.52
    methyl formate 160.3
    2-methyl-1-butanol 21.92
    n-decane 5.21
    butyronitrile 38.66
    3,7-dimethyl-1-octanol 36.51
    1-chlorooctane 22.52
    1-chlorotetradecane 11.26
    n-nonane 4.23
    undecane 4.34
    tert-butylcyclohexane 1.73
    cyclooctane 0.74
    cyclopentanol 28.51
    tetrahydropyran 45.88
    tert-amyl methyl ether 46.94
    2,5,8-trioxanonane 177.68
    1-hexene 6.63
    2-isopropoxyethanol 78.07
    2,2,2-trifluoroethanol 36.33
    methyl butyrate 78.96

    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