2,6-Naphthalenedicarboxylic acid

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  • Identifiers

    CAS number
    1141-38-4

    Molecular formula
    C12H8O4

    SMILES
    C1=CC2=C(C=CC(=C2)C(=O)O)C=C1C(=O)O

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Odorless 50.36%
    Phenolic 48.56%
    Balsamic 43.32%
    Burnt 32.82%
    Sour 32.62%
    Nutty 30.28%
    Aromatic 28.85%
    Animal 28.22%
    Bitter 27.13%
    Honey 26.14%

     

    Flavor
    Odorless 49.05%
    Nutty 46.18%
    Balsam 45.59%
    Faint 45.54%
    Phenolic 43.67%
    Mild 38.77%
    Sour 35.89%
    Balsamic 34.1%
    Honey 30.6%
    Urine 27.4%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    2.8

    pKa est.
    5.79 (weak acid)

    Molecular weight
    216.19 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    475°C

    Flash point

    • 230.51 ˚C est.

  • Synonyms

    • 2,6-Naphthalenedicarboxylic acid
    • 1141-38-4
    • naphthalene-2,6-dicarboxylic acid
    • 2,6-NAPHTHALIC ACID
    • 2,6-DICARBOXYNAPHTHALENE
    • K3C4DYZ29O
    • DTXSID5029211
    • DTXCID009211
    • CHEBI:44460
    • RefChem:445809
    • 214-527-0
    • MFCD00004105
    • 2,6-naphthalene dicarboxylic acid
    • 2,6-naphthalene-dicarboxylic acid
    • NSC-96410
    • EINECS 214-527-0
    • NSC 96410
    • UNII-K3C4DYZ29O
    • 2,6-napthalenedicarboxylic acid
    • NCIOpen2_007124
    • SCHEMBL18758
    • YSWG160
    • SCHEMBL9421029
    • 2,6-Naphthalendicarboxylic acid
    • CHEMBL1205452
    • SCHEMBL29359975
    • 2,6-naphthalenedicarboxylic-acid
    • NSC96410
    • Tox21_201122
    • 2,?6-?Naphthalenedicarboxy?lic acid
    • BBL100601
    • EBC-47256
    • SBB008377
    • STL554395
    • AKOS003235571
    • DB08262
    • FN26138
    • PS-5917
    • SB12742
    • 2,6-Naphthalenedicarboxylic acid, 95%
    • 2,6-Naphthalenedicarboxylic acid, 99%
    • NCGC00248928-01
    • NCGC00258674-01
    • PD005016
    • SY011270
    • CAS-1141-38-4
    • DB-041200
    • NAPHTHALENEDICARBOXYLIC ACID, 2,6-
    • CS-0048818
    • N0377
    • NS00015758
    • ST50307328
    • EN300-91471
    • P10008
    • F013171
    • Q2725546
    • W-108606
    • Z276653308
    • 1141-38-4

  • Applications

    2,6-Naphthalenedicarboxylic acid (CAS 1141-38-4) is used primarily as a diacid monomer or dianhydride precursor for high-performance polymers, notably polyimides, which provide excellent thermal stability and mechanical strength for electronics, automotive, and aerospace components. It also serves as a building block for aromatic polyesters and other resin systems used in coatings and films. As a chemical intermediate, it is employed in the synthesis of specialty functionalized naphthalene derivatives and related materials. In addition, it can be used in high-temperature adhesives and composite matrix resins.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 1.92
    methanol 2.16
    isopropanol 1.2
    water 0.02
    ethyl acetate 0.7
    n-propanol 1.56
    acetone 0.5
    n-butanol 1.42
    acetonitrile 0.16
    DMF 18.74
    toluene 0.12
    isobutanol 0.68
    1,4-dioxane 3.78
    methyl acetate 1.06
    THF 14.37
    2-butanone 1.69
    n-pentanol 1.25
    sec-butanol 1.9
    n-hexane 0.01
    ethylene glycol 1.17
    NMP 14.57
    cyclohexane 0.0
    DMSO 10.96
    n-butyl acetate 1.85
    n-octanol 1.63
    chloroform 0.01
    n-propyl acetate 0.66
    acetic acid 0.56
    dichloromethane 0.03
    cyclohexanone 1.26
    propylene glycol 1.14
    isopropyl acetate 1.08
    DMAc 39.52
    2-ethoxyethanol 11.45
    isopentanol 1.55
    n-heptane 0.03
    ethyl formate 0.32
    1,2-dichloroethane 0.08
    n-hexanol 1.83
    2-methoxyethanol 18.26
    isobutyl acetate 0.3
    tetrachloromethane 0.01
    n-pentyl acetate 2.22
    transcutol 28.55
    n-heptanol 2.51
    ethylbenzene 0.28
    MIBK 1.23
    2-propoxyethanol 14.59
    tert-butanol 2.89
    MTBE 2.12
    2-butoxyethanol 10.38
    propionic acid 0.79
    o-xylene 0.38
    formic acid 1.54
    diethyl ether 1.01
    m-xylene 0.26
    p-xylene 0.22
    chlorobenzene 0.04
    dimethyl carbonate 1.26
    n-octane 0.03
    formamide 7.57
    cyclopentanone 3.29
    2-pentanone 1.04
    anisole 2.2
    cyclopentyl methyl ether 2.07
    gamma-butyrolactone 4.2
    1-methoxy-2-propanol 14.21
    pyridine 1.65
    3-pentanone 0.73
    furfural 3.72
    n-dodecane 0.05
    diethylene glycol 10.7
    diisopropyl ether 0.44
    tert-amyl alcohol 4.27
    acetylacetone 1.61
    n-hexadecane 0.05
    acetophenone 2.06
    methyl propionate 1.48
    isopentyl acetate 2.36
    trichloroethylene 0.16
    n-nonanol 1.91
    cyclohexanol 0.68
    benzyl alcohol 1.59
    2-ethylhexanol 1.38
    isooctanol 2.08
    dipropyl ether 1.86
    1,2-dichlorobenzene 0.13
    ethyl lactate 1.53
    propylene carbonate 1.19
    n-methylformamide 3.42
    2-pentanol 1.2
    n-pentane 0.01
    1-propoxy-2-propanol 9.43
    1-methoxy-2-propyl acetate 6.19
    2-(2-methoxypropoxy) propanol 10.56
    mesitylene 0.25
    ε-caprolactone 2.41
    p-cymene 0.68
    epichlorohydrin 4.91
    1,1,1-trichloroethane 0.03
    2-aminoethanol 2.84
    morpholine-4-carbaldehyde 16.84
    sulfolane 8.33
    2,2,4-trimethylpentane 0.04
    2-methyltetrahydrofuran 4.16
    n-hexyl acetate 2.6
    isooctane 0.02
    2-(2-butoxyethoxy)ethanol 13.81
    sec-butyl acetate 0.77
    tert-butyl acetate 2.93
    decalin 0.03
    glycerin 4.26
    diglyme 25.28
    acrylic acid 0.84
    isopropyl myristate 1.59
    n-butyric acid 0.74
    acetyl acetate 0.36
    di(2-ethylhexyl) phthalate 1.81
    ethyl propionate 1.03
    nitromethane 1.62
    1,2-diethoxyethane 6.89
    benzonitrile 0.44
    trioctyl phosphate 1.4
    1-bromopropane 0.04
    gamma-valerolactone 8.9
    n-decanol 1.43
    triethyl phosphate 1.86
    4-methyl-2-pentanol 1.05
    propionitrile 0.35
    vinylene carbonate 0.8
    1,1,2-trichlorotrifluoroethane 3.94
    DMS 2.52
    cumene 0.34
    2-octanol 1.54
    2-hexanone 0.98
    octyl acetate 1.84
    limonene 0.69
    1,2-dimethoxyethane 14.75
    ethyl orthosilicate 2.18
    tributyl phosphate 1.32
    diacetone alcohol 7.4
    N,N-dimethylaniline 2.9
    acrylonitrile 0.58
    aniline 0.78
    1,3-propanediol 4.06
    bromobenzene 0.03
    dibromomethane 0.01
    1,1,2,2-tetrachloroethane 0.19
    2-methyl-cyclohexyl acetate 1.83
    tetrabutyl urea 3.04
    diisobutyl methanol 1.35
    2-phenylethanol 2.81
    styrene 0.18
    dioctyl adipate 2.33
    dimethyl sulfate 3.63
    ethyl butyrate 1.49
    methyl lactate 2.99
    butyl lactate 3.02
    diethyl carbonate 1.08
    propanediol butyl ether 6.02
    triethyl orthoformate 2.43
    p-tert-butyltoluene 0.76
    methyl 4-tert-butylbenzoate 6.55
    morpholine 8.73
    tert-butylamine 1.11
    n-dodecanol 1.01
    dimethoxymethane 12.35
    ethylene carbonate 0.52
    cyrene 7.33
    2-ethoxyethyl acetate 5.05
    2-ethylhexyl acetate 1.74
    1,2,4-trichlorobenzene 0.3
    4-methylpyridine 1.12
    dibutyl ether 1.8
    2,6-dimethyl-4-heptanol 1.35
    DEF 4.81
    dimethyl isosorbide 17.11
    tetrachloroethylene 0.14
    eugenol 6.87
    triacetin 3.42
    span 80 5.79
    1,4-butanediol 1.32
    1,1-dichloroethane 0.02
    2-methyl-1-pentanol 1.81
    methyl formate 1.14
    2-methyl-1-butanol 1.61
    n-decane 0.07
    butyronitrile 0.28
    3,7-dimethyl-1-octanol 1.7
    1-chlorooctane 0.35
    1-chlorotetradecane 0.21
    n-nonane 0.05
    undecane 0.06
    tert-butylcyclohexane 0.04
    cyclooctane 0.0
    cyclopentanol 1.05
    tetrahydropyran 0.99
    tert-amyl methyl ether 3.51
    2,5,8-trioxanonane 19.1
    1-hexene 0.06
    2-isopropoxyethanol 6.27
    2,2,2-trifluoroethanol 0.5
    methyl butyrate 1.02

    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