1,3-Diphenylguanidine

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  • Identifiers

    CAS number
    102-06-7

    Molecular formula
    C13H13N3

    SMILES
    C1=CC=C(C=C1)NC(=NC2=CC=CC=C2)N

    Safety labels

    Irritant
    Irritant

    Health Hazard
    Health

    Environmental Hazard
    Environmental

  • Odor profile

    Fragrance
    Fruity 38.61%
    Cheesy 34.65%
    Grape 34.36%
    Meaty 31.56%
    Ripe 30.59%
    Animal 28.51%
    Cooked 27.46%
    Floral 27.45%
    Fishy 25.47%
    Savory 24.52%

     

    Flavor
    Bitter 36.75%
    Mild 28.5%
    Nitrile 22.35%
    Odorless 22.26%
    Very strong 20.29%
    Moth ball 20.21%
    Scallion 20.01%
    Gooseberry 19.9%
    Naphthelene 19.87%
    Turnup 19.77%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    2.4

    pKa est.
    7.7 (neutral)

    Molecular weight
    211.26 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Melting point expt.

    • 302 °F (NTP, 1992)
    • 150 °C

    Boiling point

    • Decomposes >338 °F (NTP, 1992)
    • 170 °C (decomposes)

    Flash point

    • 187.51 ˚C est.
    • 388 °F (NTP, 1992)
    • 170 °C

    Solubility expt.

    • 29.5 [ug/mL] (The mean of the results at pH 7.4)
    • less than 1 mg/mL at 70 °F (NTP, 1992)
    • Soluble in ethanol, carbon tetrachloride, chloroform, toluene; very soluble in ethyl ether.
    • In water, 1,000 mg/L at 25 °C
    • Solubility in water at 20 °C: poor

  • Synonyms

    • 1,3-Diphenylguanidine
    • 102-06-7
    • Diphenylguanidine
    • N,N'-DIPHENYLGUANIDINE
    • 1,2-diphenylguanidine
    • Vulkazit
    • Accelerator D
    • Nocceler D
    • Melaniline
    • s-Diphenylguanidine
    • Denax
    • Vulkacite D
    • Vulkacit D
    • Vulcafor DPG
    • Guanidine, N,N'-diphenyl-
    • DPG accelerator
    • diphenyl guanidine
    • Vulkacit D/C
    • Denax DPG
    • 1,3-Difenylguanid
    • Guanidine, 1,3-diphenyl-
    • Sanceler D
    • Dwufenyloguanidyna
    • Soxinol D
    • USAF EK-1270
    • Vanax DPG
    • USAF B-19
    • CCRIS 1395
    • HSDB 5345
    • DPG vulcanizer
    • UNII-6MRZ85RNHQ
    • Vulcacid D
    • NCI-C60924
    • Akrochem DPG
    • Perkacit DPG
    • Vulcaid DPG
    • NSC 3272
    • EINECS 203-002-1
    • MFCD00001758
    • DTXSID3025178
    • AI3-00225
    • NSC-3272
    • 6MRZ85RNHQ
    • D.P.G
    • CHEMBL77675
    • DTXCID005178
    • DFG
    • CHEBI:144319
    • EC 203-002-1
    • 1,3-DIPHENYLGUANIDINE [MI]
    • N,N'-DIPHENYLGUANIDINE [HSDB]
    • NCGC00090698-02
    • NCGC00090698-04
    • Sym-diphenylguanidine
    • DPG (VAN)
    • Dwufenyloguanidyna [Polish]
    • 1,3-Difenylguanid [Czech]
    • CAS-102-06-7
    • SMR000567260
    • phenax
    • sDiphenylguanidine
    • diphenyl-guanidine
    • 1,3Difenylguanid
    • [imino(phenylamino)methyl]phenylamine
    • CHLOROSTAIN BR
    • RHENOGRAN DPG
    • PERKACIT DP
    • Guanidine,3-diphenyl-
    • Guanidine,N'-diphenyl-
    • ACCEL DM-R
    • Guanidine, 1,3diphenyl
    • Guanidine, N,N'diphenyl
    • N,N'-Diphenyl-guanidine
    • Maybridge1_002607
    • N,N''-Diphenyl-guanidine
    • WLN: MUYMR & MR
    • Cambridge id 5539652
    • REGID_for_CID_7594
    • SCHEMBL35172
    • MLS001055401
    • MLS001181565
    • DivK1c_001359
    • 1,3-Diphenylguanidine, 97%
    • Accelerator D Diphenyl guanidine
    • HMS548O11
    • NSC3272
    • 1,3-Diphenylguanidine (Standard)
    • HMS2870H09
    • HY-W014332R
    • Tox21_110998
    • Tox21_400041
    • BBL011030
    • BDBM50010769
    • CCG-49163
    • STK802182
    • STL301515
    • AKOS000118775
    • AKOS022133740
    • Tox21_110998_1
    • CS-W015048
    • DB14191
    • HY-W014332
    • 1,3-Diphenylguanidine, primary standard
    • CDS1_000319
    • NCGC00090698-01
    • NCGC00090698-03
    • NCGC00090698-05
    • NCGC00090698-06
    • DA-16706
    • VS-02813
    • D0723
    • D0892
    • NS00011462
    • EN300-21474
    • D88181
    • SBI-0653925.0001
    • AE-641/01188002
    • Q2537147
    • SR-01000638639-1
    • BRD-K12362304-001-07-3
    • F3096-1727
    • Z203045076
    • 1,3-Diphenylguanidine, analytical standard (for titrimetry)

  • Applications

    1,3-Diphenylguanidine (CAS 102-06-7) is widely used as a sulfur vulcanization accelerator for rubber compounds, notably in natural and synthetic elastomers, where it improves cure rate and processing safety, often in conjunction with sulfenamide systems. It also serves as an antioxidant/stabilizer for rubber and certain plastics, helping resist heat and oxidative aging. The additive can function as a curing accelerator or processing aid in adhesives, sealants, and coatings formulations, including some polyurethane and epoxy systems. It is also employed as an intermediate in the synthesis of specialty guanidine-based catalysts and other functional additives used in polymer and coating chemistries. In some formulations, it may be evaluated as a stabilizer or anti-degradant for polymers exposed to harsh environments, subject to regulatory limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 62.67
    methanol 107.34
    isopropanol 22.33
    water 0.39
    ethyl acetate 55.22
    n-propanol 45.8
    acetone 157.53
    n-butanol 30.67
    acetonitrile 45.26
    DMF 904.25
    toluene 5.71
    isobutanol 21.5
    1,4-dioxane 83.51
    methyl acetate 50.3
    THF 300.93
    2-butanone 60.49
    n-pentanol 23.35
    sec-butanol 14.37
    n-hexane 0.61
    ethylene glycol 51.64
    NMP 285.35
    cyclohexane 0.55
    DMSO 1224.6
    n-butyl acetate 28.4
    n-octanol 8.85
    chloroform 81.82
    n-propyl acetate 26.56
    acetic acid 129.95
    dichloromethane 54.11
    cyclohexanone 83.88
    propylene glycol 48.5
    isopropyl acetate 21.21
    DMAc 399.15
    2-ethoxyethanol 60.34
    isopentanol 18.21
    n-heptane 1.09
    ethyl formate 55.59
    1,2-dichloroethane 41.55
    n-hexanol 23.6
    2-methoxyethanol 181.14
    isobutyl acetate 16.56
    tetrachloromethane 4.44
    n-pentyl acetate 13.7
    transcutol 94.94
    n-heptanol 12.79
    ethylbenzene 3.18
    MIBK 21.92
    2-propoxyethanol 77.77
    tert-butanol 18.6
    MTBE 9.13
    2-butoxyethanol 37.75
    propionic acid 71.05
    o-xylene 4.21
    formic acid 78.26
    diethyl ether 17.56
    m-xylene 4.17
    p-xylene 4.92
    chlorobenzene 20.04
    dimethyl carbonate 84.74
    n-octane 0.44
    formamide 131.56
    cyclopentanone 257.27
    2-pentanone 48.18
    anisole 21.95
    cyclopentyl methyl ether 45.06
    gamma-butyrolactone 276.86
    1-methoxy-2-propanol 101.05
    pyridine 88.87
    3-pentanone 38.36
    furfural 191.47
    n-dodecane 0.59
    diethylene glycol 85.74
    diisopropyl ether 3.13
    tert-amyl alcohol 12.02
    acetylacetone 85.13
    n-hexadecane 0.65
    acetophenone 27.52
    methyl propionate 85.46
    isopentyl acetate 21.77
    trichloroethylene 109.31
    n-nonanol 9.52
    cyclohexanol 15.69
    benzyl alcohol 24.98
    2-ethylhexanol 12.22
    isooctanol 9.45
    dipropyl ether 18.43
    1,2-dichlorobenzene 20.74
    ethyl lactate 30.46
    propylene carbonate 100.67
    n-methylformamide 233.79
    2-pentanol 10.82
    n-pentane 0.39
    1-propoxy-2-propanol 44.71
    1-methoxy-2-propyl acetate 41.62
    2-(2-methoxypropoxy) propanol 32.37
    mesitylene 2.92
    ε-caprolactone 62.83
    p-cymene 4.66
    epichlorohydrin 191.86
    1,1,1-trichloroethane 19.84
    2-aminoethanol 71.82
    morpholine-4-carbaldehyde 201.79
    sulfolane 365.07
    2,2,4-trimethylpentane 0.45
    2-methyltetrahydrofuran 59.9
    n-hexyl acetate 17.58
    isooctane 0.36
    2-(2-butoxyethoxy)ethanol 44.09
    sec-butyl acetate 12.92
    tert-butyl acetate 17.99
    decalin 0.71
    glycerin 103.5
    diglyme 91.99
    acrylic acid 87.51
    isopropyl myristate 8.32
    n-butyric acid 76.83
    acetyl acetate 37.18
    di(2-ethylhexyl) phthalate 14.77
    ethyl propionate 30.27
    nitromethane 322.44
    1,2-diethoxyethane 23.05
    benzonitrile 29.04
    trioctyl phosphate 10.34
    1-bromopropane 11.1
    gamma-valerolactone 220.34
    n-decanol 7.75
    triethyl phosphate 16.69
    4-methyl-2-pentanol 7.23
    propionitrile 34.21
    vinylene carbonate 97.29
    1,1,2-trichlorotrifluoroethane 183.71
    DMS 32.85
    cumene 3.27
    2-octanol 5.78
    2-hexanone 25.46
    octyl acetate 12.49
    limonene 6.03
    1,2-dimethoxyethane 107.13
    ethyl orthosilicate 14.39
    tributyl phosphate 11.98
    diacetone alcohol 35.17
    N,N-dimethylaniline 16.19
    acrylonitrile 66.02
    aniline 24.64
    1,3-propanediol 69.08
    bromobenzene 14.88
    dibromomethane 25.88
    1,1,2,2-tetrachloroethane 98.53
    2-methyl-cyclohexyl acetate 18.69
    tetrabutyl urea 17.89
    diisobutyl methanol 6.62
    2-phenylethanol 23.31
    styrene 5.33
    dioctyl adipate 16.09
    dimethyl sulfate 153.57
    ethyl butyrate 24.12
    methyl lactate 82.35
    butyl lactate 21.77
    diethyl carbonate 19.83
    propanediol butyl ether 31.4
    triethyl orthoformate 20.12
    p-tert-butyltoluene 4.48
    methyl 4-tert-butylbenzoate 26.68
    morpholine 115.56
    tert-butylamine 7.33
    n-dodecanol 6.28
    dimethoxymethane 251.17
    ethylene carbonate 70.0
    cyrene 44.93
    2-ethoxyethyl acetate 24.01
    2-ethylhexyl acetate 16.94
    1,2,4-trichlorobenzene 29.66
    4-methylpyridine 46.54
    dibutyl ether 9.15
    2,6-dimethyl-4-heptanol 6.62
    DEF 83.25
    dimethyl isosorbide 57.1
    tetrachloroethylene 52.66
    eugenol 31.23
    triacetin 27.94
    span 80 28.79
    1,4-butanediol 26.56
    1,1-dichloroethane 23.69
    2-methyl-1-pentanol 14.7
    methyl formate 174.22
    2-methyl-1-butanol 16.74
    n-decane 0.83
    butyronitrile 30.17
    3,7-dimethyl-1-octanol 8.3
    1-chlorooctane 4.11
    1-chlorotetradecane 2.19
    n-nonane 0.65
    undecane 0.68
    tert-butylcyclohexane 0.71
    cyclooctane 0.23
    cyclopentanol 37.23
    tetrahydropyran 52.43
    tert-amyl methyl ether 9.24
    2,5,8-trioxanonane 62.68
    1-hexene 3.76
    2-isopropoxyethanol 30.52
    2,2,2-trifluoroethanol 46.63
    methyl butyrate 42.03

    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