Chloroquine Phosphate

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  • Identifiers

    CAS number
    50-63-5

    Molecular formula
    C18H32ClN3O8P2

    SMILES
    CCN(CC)CCCC(C)NC1=C2C=CC(=CC2=NC=C1)Cl.OP(=O)(O)O.OP(=O)(O)O

    Safety labels

    Irritant
    Irritant

    Health Hazard
    Health

  • Odor profile

    Fragrance
    Fishy 56.23%
    Cheesy 42.61%
    Odorless 38.23%
    Ripe 37.94%
    Animal 37.06%
    Meaty 35.23%
    Savory 31.13%
    Cooling 26.46%
    Roasted 25.36%
    Cooked 23.93%

     

    Flavor
    Bitter 36.9%
    Odorless 26.89%
    Bland 24.87%
    Mild 23.99%
    Cedarleaf 19.71%
    Nitrile 19.64%
    Syrup 18.97%
    Bloody 18.93%
    Green pepper 18.81%
    Yeasty 18.8%

     

    Odor impact est.
    Low

  • Properties

    pKa est.
    6.83 (neutral)

    Molecular weight
    515.9 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    476°C

    Flash point

    • 205.51 ˚C est.

  • Synonyms

    • Chloroquine diphosphate
    • Chloroquine phosphate
    • 50-63-5
    • Resochin
    • Arechin
    • Chloroquine diphosphate salt
    • Avloclor
    • Tanakan
    • Aralen phosphate
    • Quingamine
    • Delagil
    • Miniquine
    • Tanakene
    • Chloroquine bis(phosphate)
    • Chlorochin diphosphate
    • Chloroquine (phosphate)
    • Chingamin phosphate
    • dl-Chloroquine diphosphate
    • Khingamin
    • Ipsen 225
    • NSC 14050
    • Aralen diphosphate
    • CCRIS 1554
    • Unikinon
    • Gontochin phosphate
    • Chloroquin diphosphate
    • EINECS 200-055-2
    • MFCD00069852
    • Chloroquine dihydrogen phosphate (1:2)
    • UNII-6E17K3343P
    • AI3-14952
    • N4-(7-chloroquinolin-4-yl)-N1,N1-diethylpentane-1,4-diamine bis(phosphate)
    • NSC-14050
    • 6E17K3343P
    • SN-7618
    • WR-1522
    • DTXSID7044681
    • Chloroquine phosphate [USP:BAN]
    • 3377 RP
    • Chloroquine (phosphate) (Standard)
    • 50-63-5 (DIPHOSPHATE)
    • SN 7,618
    • 7-Chloro-4-((4-(diethylamino)-1-methylbutyl)amino)quinoline phosphate (1:2)
    • N4-(7-Chloro-4-quinolinyl)-N1,N1-dimethyl-1,4-pentanediamine diphosphate salt
    • 1,4-Pentanediamine, N4-(7-chloro-4-quinolinyl)-N1,N1-diethyl-, phosphate (1:2)
    • N(4)-(7-Chloro-4-quinolinyl)-N(1),N(1)-diethyl-1,4-pentanediamine, phosphate (1:2)
    • 1,4-Pentanediamine, N(sup 4)-(7-chloro-4-quinolinyl)-N(sup 1),N(sup 1)-diethyl-, phosphate (1:2)
    • Chingaminum
    • Alermine
    • H-Stadur
    • 1,4-Pentanediamine, N4-(7-chloro-4-quinolinyl)-N',N'-diethyl-, (+-)-, phosphate (1:2)
    • Quinoline, 7-chloro-4-((4-(diethylamino)-1-methylbutyl)amino)-, phosphate (1:2)
    • DTXCID5024681
    • Chloroquine phosphate (USP:BAN)
    • Tanakan (antimalarial)
    • CHLOROQUINE PHOSPHATE (MART.)
    • CHLOROQUINE PHOSPHATE [MART.]
    • CHLOROQUINE PHOSPHATE (USP-RS)
    • CHLOROQUINE PHOSPHATE [USP-RS]
    • 7-CHLORO-4-((4-(DIETHYLAMINO)-1-METHYLBUTYL)AMINO)QUINOLINE PHOSPHATE (1:2).
    • CHLOROQUINE PHOSPHATE (EP MONOGRAPH)
    • CHLOROQUINE PHOSPHATE [EP MONOGRAPH]
    • Chloroquinediphosphate
    • NSC14050
    • CHLOROQUINE PHOSPHATE (USP MONOGRAPH)
    • CHLOROQUINE PHOSPHATE [USP MONOGRAPH]
    • SR-01000075548
    • WR 1522
    • Chloroquindiphosphat
    • Chloroquinum Phos.
    • Chloroquini phosphas
    • Prestwick_867
    • Aralen (TN)
    • CAS-50-63-5
    • NCGC00015256-01
    • 7-Chlor-4-(4-(diaethylamino)-1-methylbutylamino)-chinolindiphosphat [German]
    • Chloroquine phosphate (USP)
    • SCHEMBL40827
    • CHEMBL58510
    • SPECTRUM1500179
    • HMS501E06
    • QKICWELGRMTQCR-UHFFFAOYSA-N
    • HMS1569N17
    • HMS1920O05
    • HMS2091C16
    • HMS2096N17
    • HMS3260L14
    • HMS3713N17
    • BCP31956
    • CHLOROQUINE DIPHOSPHATE [MI]
    • Tox21_110115
    • Tox21_202838
    • Tox21_500296
    • 7-Chlor-4-(4-(diaethylamino)-1-methylbutylamino)-chinolindiphosphat
    • CCG-39643
    • CHLOROQUINE PHOSPHATE [VANDF]
    • HB5073
    • HY-17589R
    • s4157
    • AKOS004910410
    • CHLOROQUINE PHOSPHATE [WHO-DD]
    • CHLOROQUINE PHOSPHATE [WHO-IP]
    • N4-(7-chloro-4-quinolyl)-N1,N1-diethyl-pentane-1,4-diamine; phosphoric acid
    • Quinoline, 7-chloro-4-(4-diethylamino-1-methyl-butylamino)-, diphosphate
    • Tox21_110115_1
    • CS-3811
    • DT-0015
    • FC20382
    • LP00296
    • NCGC00015256-12
    • NCGC00093746-01
    • NCGC00093746-02
    • NCGC00093746-03
    • NCGC00260384-01
    • NCGC00260981-01
    • AC-12463
    • CHLOROQUINE PHOSPHATE [GREEN BOOK]
    • HY-17589
    • SY021941
    • CHLOROQUINE PHOSPHATE [ORANGE BOOK]
    • CHLOROQUINI PHOSPHAS [WHO-IP LATIN]
    • DB-051808
    • C2301
    • Chloroquine diphosphate salt, solid, >=98%
    • CS-0695021
    • EU-0100296
    • NS00078674
    • C 6628

  • Applications

    Chloroquine Phosphate is used as an active pharmaceutical ingredient (API) in formulations involving chloroquine derivatives and as a precursor for the synthesis of related compounds; it is employed in pharmaceutical R&D as a reagent and component for formulation optimization. In laboratory settings it serves as an analytical reference material and supports QA/QC activities for method development and process characterization. The phosphate salt form enhances solubility and is used to optimize physicochemical properties during formulation development. Additionally, chloroquine phosphate can function as a synthetic starting material or reference in research and production projects related to the chloroquine family.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 71.04
    methanol 70.4
    isopropanol 30.81
    water 0.74
    ethyl acetate 92.49
    n-propanol 86.57
    acetone 99.76
    n-butanol 87.32
    acetonitrile 22.28
    DMF 132.74
    toluene 43.88
    isobutanol 67.93
    1,4-dioxane 136.57
    methyl acetate 79.25
    THF 264.43
    2-butanone 117.44
    n-pentanol 83.82
    sec-butanol 53.03
    n-hexane 2.32
    ethylene glycol 16.17
    NMP 205.12
    cyclohexane 6.54
    DMSO 223.58
    n-butyl acetate 95.29
    n-octanol 21.02
    chloroform 431.69
    n-propyl acetate 86.56
    acetic acid 147.59
    dichloromethane 442.26
    cyclohexanone 228.14
    propylene glycol 22.72
    isopropyl acetate 52.23
    DMAc 240.0
    2-ethoxyethanol 153.34
    isopentanol 69.18
    n-heptane 2.85
    ethyl formate 85.54
    1,2-dichloroethane 238.56
    n-hexanol 57.06
    2-methoxyethanol 160.83
    isobutyl acetate 69.05
    tetrachloromethane 58.52
    n-pentyl acetate 74.85
    transcutol 350.23
    n-heptanol 36.23
    ethylbenzene 16.41
    MIBK 49.11
    2-propoxyethanol 131.16
    tert-butanol 31.66
    MTBE 35.92
    2-butoxyethanol 90.37
    propionic acid 87.27
    o-xylene 28.92
    formic acid 57.31
    diethyl ether 40.14
    m-xylene 31.32
    p-xylene 29.76
    chlorobenzene 89.06
    dimethyl carbonate 37.07
    n-octane 1.45
    formamide 64.96
    cyclopentanone 229.11
    2-pentanone 86.03
    anisole 41.5
    cyclopentyl methyl ether 104.14
    gamma-butyrolactone 243.84
    1-methoxy-2-propanol 85.2
    pyridine 133.25
    3-pentanone 82.18
    furfural 247.3
    n-dodecane 1.08
    diethylene glycol 95.15
    diisopropyl ether 10.92
    tert-amyl alcohol 46.6
    acetylacetone 103.02
    n-hexadecane 1.3
    acetophenone 72.41
    methyl propionate 81.01
    isopentyl acetate 91.64
    trichloroethylene 454.0
    n-nonanol 22.57
    cyclohexanol 91.6
    benzyl alcohol 74.87
    2-ethylhexanol 40.12
    isooctanol 32.06
    dipropyl ether 32.31
    1,2-dichlorobenzene 88.74
    ethyl lactate 45.69
    propylene carbonate 148.95
    n-methylformamide 74.04
    2-pentanol 36.25
    n-pentane 2.21
    1-propoxy-2-propanol 84.93
    1-methoxy-2-propyl acetate 95.56
    2-(2-methoxypropoxy) propanol 74.12
    mesitylene 15.71
    ε-caprolactone 189.28
    p-cymene 19.56
    epichlorohydrin 346.83
    1,1,1-trichloroethane 150.73
    2-aminoethanol 45.03
    morpholine-4-carbaldehyde 224.65
    sulfolane 290.11
    2,2,4-trimethylpentane 3.13
    2-methyltetrahydrofuran 165.76
    n-hexyl acetate 63.22
    isooctane 1.4
    2-(2-butoxyethoxy)ethanol 108.55
    sec-butyl acetate 54.58
    tert-butyl acetate 50.01
    decalin 3.68
    glycerin 39.97
    diglyme 227.35
    acrylic acid 73.5
    isopropyl myristate 22.7
    n-butyric acid 138.64
    acetyl acetate 66.42
    di(2-ethylhexyl) phthalate 41.54
    ethyl propionate 55.06
    nitromethane 150.39
    1,2-diethoxyethane 106.97
    benzonitrile 63.96
    trioctyl phosphate 26.12
    1-bromopropane 80.76
    gamma-valerolactone 322.57
    n-decanol 16.43
    triethyl phosphate 45.01
    4-methyl-2-pentanol 22.85
    propionitrile 33.42
    vinylene carbonate 133.99
    1,1,2-trichlorotrifluoroethane 253.1
    DMS 57.52
    cumene 15.85
    2-octanol 20.29
    2-hexanone 80.78
    octyl acetate 33.94
    limonene 26.21
    1,2-dimethoxyethane 163.71
    ethyl orthosilicate 44.85
    tributyl phosphate 34.74
    diacetone alcohol 65.65
    N,N-dimethylaniline 33.98
    acrylonitrile 39.11
    aniline 86.73
    1,3-propanediol 81.92
    bromobenzene 83.89
    dibromomethane 231.38
    1,1,2,2-tetrachloroethane 366.48
    2-methyl-cyclohexyl acetate 71.81
    tetrabutyl urea 41.98
    diisobutyl methanol 18.45
    2-phenylethanol 69.13
    styrene 19.92
    dioctyl adipate 46.85
    dimethyl sulfate 72.88
    ethyl butyrate 69.23
    methyl lactate 43.68
    butyl lactate 65.88
    diethyl carbonate 47.4
    propanediol butyl ether 58.99
    triethyl orthoformate 57.42
    p-tert-butyltoluene 17.08
    methyl 4-tert-butylbenzoate 62.85
    morpholine 190.31
    tert-butylamine 16.11
    n-dodecanol 12.19
    dimethoxymethane 101.71
    ethylene carbonate 123.51
    cyrene 103.67
    2-ethoxyethyl acetate 124.7
    2-ethylhexyl acetate 81.49
    1,2,4-trichlorobenzene 115.7
    4-methylpyridine 121.04
    dibutyl ether 26.82
    2,6-dimethyl-4-heptanol 18.45
    DEF 115.01
    dimethyl isosorbide 139.77
    tetrachloroethylene 257.38
    eugenol 72.14
    triacetin 77.26
    span 80 63.17
    1,4-butanediol 49.14
    1,1-dichloroethane 152.44
    2-methyl-1-pentanol 78.66
    methyl formate 66.67
    2-methyl-1-butanol 85.26
    n-decane 1.9
    butyronitrile 43.93
    3,7-dimethyl-1-octanol 24.27
    1-chlorooctane 13.61
    1-chlorotetradecane 5.16
    n-nonane 1.63
    undecane 1.38
    tert-butylcyclohexane 3.33
    cyclooctane 2.21
    cyclopentanol 94.63
    tetrahydropyran 134.63
    tert-amyl methyl ether 38.55
    2,5,8-trioxanonane 138.36
    1-hexene 12.78
    2-isopropoxyethanol 99.87
    2,2,2-trifluoroethanol 70.77
    methyl butyrate 85.08

    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