Dalfampridine

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  • Identifiers

    CAS number
    504-24-5

    Molecular formula
    C5H6N2

    SMILES
    C1=CN=CC=C1N

    Safety labels

    Acute Toxic
    Acute Toxic

    Irritant
    Irritant

    Environmental Hazard
    Environmental

  • Odor profile

    Fragrance
    Roasted 51.29%
    Nutty 48.96%
    Fishy 46.43%
    Meaty 45.11%
    Burnt 44.93%
    Animal 40.5%
    Musty 37.58%
    Coffee 33.13%
    Cheesy 30.27%
    Smoky 29.99%

     

    Flavor
    Bitter 43.56%
    Nutty 42.22%
    Roasted 37.93%
    Coffee 30.88%
    Fishy 29.03%
    Sulfur 27.11%
    Cocoa 26.71%
    Chocolate 25.65%
    Musty 25.26%
    Rubber 25.1%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    0.3

    pKa est.
    5.53 (weak acid)

    Molecular weight
    94.11 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Moderate

    Melting point expt.

    • 318 °F (EPA, 1998)
    • 157-161°C
    • 159.0 °C
    • 604.4 °F

    Boiling point

    • 524.3 °F at 760 mmHg (EPA, 1998)
    • 273°C
    • 273 °C
    • 524.3 °F

    Flash point

    • 102.04 ˚C est.
    • 328 °F (USCG, 1999)

    Solubility expt.

    • 74 g/L
    • In water, 112 g/L at 20 °C
    • Soluble in ethyl ether, benzene; slightly soluble in ligroin; very soluble in ethanol
    • Soluble in oxygenated solvents
    • Soluble in methanol, acetone, tetrahydrofuran, isopropanol, acetonitrile, N,N-dimethylformamide, dimethylsulfoxide, and ethanol

  • Synonyms

    • 4-aminopyridine
    • 504-24-5
    • pyridin-4-amine
    • Fampridine
    • 4-Pyridinamine
    • Dalfampridine
    • 4-Pyridylamine
    • p-Aminopyridine
    • 4-AP
    • Avitrol
    • Ampyra
    • gamma-Aminopyridine
    • Pyridine, 4-amino-
    • FAMPYRA
    • Compound 1861
    • Pimadin (free base)
    • Amino-4 pyridine
    • Neurelan
    • Amaya
    • Avitrol 200
    • Phillips 1861
    • 4 Aminopyridine
    • Prc 1237
    • fampridina
    • Caswell No. 038
    • EL-970
    • VMI 10-3
    • fampridinum
    • NSC 15041
    • HSDB 6037
    • UNII-BH3B64OKL9
    • pyridin-4-ylamine
    • EINECS 207-987-9
    • BH3B64OKL9
    • NSC-15041
    • Fampridine [INN]
    • BIIB041
    • EPA Pesticide Chemical Code 069201
    • BRN 0105782
    • BIIB 041
    • .gamma.-Aminopyridine
    • DTXSID0023870
    • CHEBI:34385
    • Dalfampridine [USAN]
    • AI3-52547
    • N07XX07
    • Fampridine (4-aminopyridine)
    • MLS000069400
    • CHEMBL284348
    • DTXCID003870
    • Dalfampridine (4-aminopyridine)
    • 5-22-09-00106 (Beilstein Handbook Reference)
    • NSC15041
    • MFCD00006439
    • Dalfampridine (USAN)
    • NCGC00015009-08
    • Pymadine
    • SMR000058211
    • 286367-79-1
    • Fampridine-SR
    • DALFAMPRIDINE (II)
    • DALFAMPRIDINE [II]
    • FAMPRIDINE (MART.)
    • FAMPRIDINE [MART.]
    • DALFAMPRIDINE (USP-RS)
    • DALFAMPRIDINE [USP-RS]
    • ACETYL-2-13C CHLORIDE,2,2-DICHLORO- (9CI)
    • VMI-103
    • DALFAMPRIDINE (USP MONOGRAPH)
    • DALFAMPRIDINE [USP MONOGRAPH]
    • 4-amino pyridine
    • 4-amino-pyridine
    • 4- Aminopyridine
    • Mi-W-3
    • 4AP
    • CAS-504-24-5
    • Ampyra (TN)
    • VMI 103
    • SR-01000075299
    • RCRA waste no. P008
    • Dalfampridine [USAN:INN]
    • Frampridine
    • Ampydin
    • Pymadin
    • Fampridine-PR
    • Dalfampridine-ER
    • 4-pyridyl amine
    • para-aminopyridine
    • pyridine-4-amine
    • 3rxf
    • Neurelan (TN)
    • pyridine-4-ylamine
    • Fampyra (TN)
    • pyridin-4-yl-amine
    • 4-Aminopyridine 10
    • Philips 1861
    • 4-AMINOPYRDINE
    • Spectrum_000155
    • Tocris-0940
    • Fampridine (JAN/INN)
    • 4-Aminopyridine, 98%
    • FAMPRIDINE [JAN]
    • PYRIDINE,4-AMINO
    • Opera_ID_1768
    • Spectrum2_001413
    • Spectrum3_000914
    • Spectrum4_001013
    • Spectrum5_001501
    • 4-Pyridinamine;Fampridine
    • Lopac-A-0152
    • DALFAMPRIDINE [MI]
    • FAMPRIDINE [VANDF]
    • UPCMLD-DP125
    • WLN: T6NJ DZ
    • 4-Aminopyridine (4-AP)
    • 4-Aminopyridine, >=99%
    • DALFAMPRIDINE [HSDB]
    • FAMPRIDINE [WHO-DD]
    • 1,4-dihydropyridin-4-imine
    • Lopac0_000032
    • BSPBio_001562
    • DALFAMPRIDINE [VANDF]
    • KBioGR_000282
    • KBioGR_001505
    • KBioSS_000282
    • KBioSS_000635
    • DivK1c_000572
    • FAMPRIDINE [EMA EPAR]

  • Applications

    Dalfampridine (CAS 504-24-5) is primarily used as an active pharmaceutical ingredient to improve walking in people with multiple sclerosis by blocking voltage-gated potassium channels and thereby enhancing nerve conduction. In research and development settings, it is used as a tool compound to study neuronal conduction and ion-channel biology. In pharmaceutical development and quality assessment, this API is considered for oral dosage form development and for stability and quality-control evaluations. Its use is subject to local regulations and regulatory status may vary by jurisdiction.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 1288.04
    methanol 1687.95
    isopropanol 470.97
    water 172.04
    ethyl acetate 513.76
    n-propanol 697.95
    acetone 707.2
    n-butanol 498.67
    acetonitrile 457.08
    DMF 1818.7
    toluene 40.88
    isobutanol 276.4
    1,4-dioxane 342.12
    methyl acetate 469.86
    THF 799.59
    2-butanone 447.12
    n-pentanol 252.4
    sec-butanol 275.88
    n-hexane 3.07
    ethylene glycol 343.4
    NMP 823.09
    cyclohexane 4.34
    DMSO 1024.3
    n-butyl acetate 206.05
    n-octanol 28.75
    chloroform 305.99
    n-propyl acetate 148.34
    acetic acid 1406.25
    dichloromethane 200.6
    cyclohexanone 321.29
    propylene glycol 367.61
    isopropyl acetate 144.24
    DMAc 1160.14
    2-ethoxyethanol 468.03
    isopentanol 200.38
    n-heptane 6.02
    ethyl formate 511.86
    1,2-dichloroethane 101.38
    n-hexanol 170.64
    2-methoxyethanol 1225.93
    isobutyl acetate 57.51
    tetrachloromethane 50.14
    n-pentyl acetate 67.13
    transcutol 389.55
    n-heptanol 62.42
    ethylbenzene 6.81
    MIBK 85.02
    2-propoxyethanol 455.92
    tert-butanol 256.49
    MTBE 90.8
    2-butoxyethanol 183.33
    propionic acid 847.8
    o-xylene 21.01
    formic acid 1304.08
    diethyl ether 157.47
    m-xylene 25.89
    p-xylene 13.79
    chlorobenzene 62.01
    dimethyl carbonate 199.37
    n-octane 1.46
    formamide 1492.7
    cyclopentanone 644.92
    2-pentanone 340.46
    anisole 53.42
    cyclopentyl methyl ether 215.48
    gamma-butyrolactone 964.1
    1-methoxy-2-propanol 658.85
    pyridine 406.48
    3-pentanone 187.45
    furfural 624.41
    n-dodecane 0.98
    diethylene glycol 332.07
    diisopropyl ether 19.34
    tert-amyl alcohol 151.29
    acetylacetone 252.04
    n-hexadecane 1.03
    acetophenone 60.05
    methyl propionate 473.51
    isopentyl acetate 88.09
    trichloroethylene 276.42
    n-nonanol 25.69
    cyclohexanol 133.26
    benzyl alcohol 91.98
    2-ethylhexanol 48.28
    isooctanol 35.11
    dipropyl ether 76.0
    1,2-dichlorobenzene 39.88
    ethyl lactate 81.74
    propylene carbonate 348.23
    n-methylformamide 1552.37
    2-pentanol 168.87
    n-pentane 6.0
    1-propoxy-2-propanol 252.42
    1-methoxy-2-propyl acetate 166.62
    2-(2-methoxypropoxy) propanol 65.34
    mesitylene 10.71
    ε-caprolactone 314.94
    p-cymene 10.09
    epichlorohydrin 507.78
    1,1,1-trichloroethane 110.76
    2-aminoethanol 723.69
    morpholine-4-carbaldehyde 582.37
    sulfolane 515.08
    2,2,4-trimethylpentane 2.43
    2-methyltetrahydrofuran 361.51
    n-hexyl acetate 54.32
    isooctane 1.68
    2-(2-butoxyethoxy)ethanol 120.01
    sec-butyl acetate 57.87
    tert-butyl acetate 79.41
    decalin 1.39
    glycerin 501.79
    diglyme 257.25
    acrylic acid 674.68
    isopropyl myristate 13.91
    n-butyric acid 972.63
    acetyl acetate 175.96
    di(2-ethylhexyl) phthalate 20.93
    ethyl propionate 122.82
    nitromethane 1888.16
    1,2-diethoxyethane 97.78
    benzonitrile 111.68
    trioctyl phosphate 16.84
    1-bromopropane 51.3
    gamma-valerolactone 759.43
    n-decanol 17.37
    triethyl phosphate 26.74
    4-methyl-2-pentanol 50.45
    propionitrile 338.07
    vinylene carbonate 304.7
    1,1,2-trichlorotrifluoroethane 453.32
    DMS 52.67
    cumene 5.66
    2-octanol 22.29
    2-hexanone 114.97
    octyl acetate 25.2
    limonene 15.82
    1,2-dimethoxyethane 343.21
    ethyl orthosilicate 25.74
    tributyl phosphate 20.26
    diacetone alcohol 158.4
    N,N-dimethylaniline 32.12
    acrylonitrile 465.3
    aniline 193.44
    1,3-propanediol 771.49
    bromobenzene 38.33
    dibromomethane 100.85
    1,1,2,2-tetrachloroethane 185.38
    2-methyl-cyclohexyl acetate 37.29
    tetrabutyl urea 31.42
    diisobutyl methanol 18.4
    2-phenylethanol 83.1
    styrene 12.84
    dioctyl adipate 23.01
    dimethyl sulfate 230.74
    ethyl butyrate 103.12
    methyl lactate 260.0
    butyl lactate 66.7
    diethyl carbonate 51.11
    propanediol butyl ether 103.07
    triethyl orthoformate 55.4
    p-tert-butyltoluene 9.54
    methyl 4-tert-butylbenzoate 47.51
    morpholine 665.68
    tert-butylamine 102.3
    n-dodecanol 11.83
    dimethoxymethane 530.77
    ethylene carbonate 274.23
    cyrene 72.61
    2-ethoxyethyl acetate 104.88
    2-ethylhexyl acetate 62.3
    1,2,4-trichlorobenzene 57.31
    4-methylpyridine 300.97
    dibutyl ether 24.36
    2,6-dimethyl-4-heptanol 18.4
    DEF 492.95
    dimethyl isosorbide 98.7
    tetrachloroethylene 157.66
    eugenol 54.98
    triacetin 53.76
    span 80 60.82
    1,4-butanediol 219.99
    1,1-dichloroethane 140.56
    2-methyl-1-pentanol 104.08
    methyl formate 802.58
    2-methyl-1-butanol 204.07
    n-decane 1.68
    butyronitrile 327.47
    3,7-dimethyl-1-octanol 22.43
    1-chlorooctane 7.63
    1-chlorotetradecane 2.82
    n-nonane 1.57
    undecane 1.23
    tert-butylcyclohexane 1.62
    cyclooctane 1.48
    cyclopentanol 286.47
    tetrahydropyran 273.33
    tert-amyl methyl ether 63.19
    2,5,8-trioxanonane 130.09
    1-hexene 17.35
    2-isopropoxyethanol 181.73
    2,2,2-trifluoroethanol 441.0
    methyl butyrate 185.08

    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