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    Home / CITALOPRAM / Citalopram EP Impurity C HCl (3-Oxo Citalopram HCl)
    Citalopram EP Impurity C HCl (3-Oxo Citalopram HCl)

    Citalopram EP Impurity C HCl (3-Oxo Citalopram HCl)

    Synonym

    1-(3-(dimethylamino)propyl)-1-(4-fluorophenyl)-3-oxo-1,3-dihydroisobenzofuran-5-carbonitrile hydrochloride

    Molecular Formula

    C20H19FN2O2. HCl

    Molecular Weight

    338.39 36.46

    Catalogue Number

    AR-C02968

    Parent Drug

    CITALOPRAM

    CAS Number

    372941-54-3 (free base)

    Common Package:10,25,50,100 mg

    Collections: CITALOPRAM

    Category: 372941-54-3 (free base) AR-C02968 C20H19FN2O2. HCl CITALOPRAM

    RELATED PRODUCTS
    Citalopram N-Oxide

    Synonym

    Citalopram USP Related Compound E; 1-[3-(Dimethyloxidoamino)propyl]-1-(4-
    fluorophenyl)-1,3-dihydro-5-isobenzofurancarbonitrile

    Molecular Formula

    C20H21FN2O2

    Molecular Weight

    340.40

    Catalogue Number

    AR-C04101

    Parent Drug

    CitalopramĀ 

    CAS Number

    63284-72-0 (free base); alt.cas#:Ā 62498-71-9 (HCl salt)
    Citalopram USP Related Compound D HCl

    Synonym

    1-(4-Fluorophenyl)-1-(3-methylamino-propyl)-1,3-dihydro-isobenzofuran-5-carbonitrile
    Hydrochloride

    Molecular Formula

    C19H19FN2O; HCl

    Molecular Weight

    310.37; 36.46

    Catalogue Number

    AR-C04128

    Parent Drug

    CitalopramĀ 

    CAS Number

    97743-99-2 (HCl salt); alt. cas#:Ā 62498-67-3 (free base)
    Citalopram USP Related Compound B

    Synonym

    1-[3-(Dimethylamino)propyl]-1-(4-fluorophenyl)-1,3-dihydro-3-hydroxy-5-
    isobenzofurancarbonitrile

    Molecular Formula

    C20H21FN2O2

    Molecular Weight

    340.40

    Catalogue Number

    AR-C04127

    Parent Drug

    Citalopram

    CAS Number

    411221-53-9
    1-(3-(dimethylamino)propyl)-1-hydroxy-1,3-dihydroisobenzofuran-5-carbonitrile

    Synonym

    1-(3-(dimethylamino)propyl)-1-hydroxy-1,3-dihydroisobenzofuran-5-carbonitrile

    Molecular Formula

    C14H18N2O2

    Molecular Weight

    246.31

    Catalogue Number

    AR-C03005

    Parent Drug

    CITALOPRAM
    4-(5-(dimethylamino)-1-(2-fluorophenyl)-2-hydroxypentyl)-3-(hydroxymethyl)benzonitrile

    Synonym

    4-(5-(dimethylamino)-1-(2-fluorophenyl)-2-hydroxypentyl)-3-(hydroxymethyl)benzonitrile

    Molecular Formula

    C21H25FN2O2

    Molecular Weight

    356.44

    Catalogue Number

    AR-C03004

    Parent Drug

    CITALOPRAM
    4-(5-(dimethylamino)-1-(2-fluorophenyl)-2-hydroxypentyl)-3-(hydroxymethyl)benzamide

    Synonym

    4-(5-(dimethylamino)-1-(2-fluorophenyl)-2-hydroxypentyl)-3-(hydroxymethyl)benzamide

    Molecular Formula

    C21H27FN2O3

    Molecular Weight

    374.46

    Catalogue Number

    AR-C03003

    Parent Drug

    CITALOPRAM
    4-(5-(dimethylamino)-1-(2-fluorophenyl)-2-hydroxypentyl)-3-(hydroxymethyl)benzoic acid

    Synonym

    4-(5-(dimethylamino)-1-(2-fluorophenyl)-2-hydroxypentyl)-3-(hydroxymethyl)benzoic acid

    Molecular Formula

    C21H26FNO4

    Molecular Weight

    375.44

    Catalogue Number

    AR-C03002

    Parent Drug

    CITALOPRAM
    4-(5-(dimethylamino)-1-(4-fluorophenyl)-2-hydroxypentyl)-3-(hydroxymethyl)benzamide

    Synonym

    4-(5-(dimethylamino)-1-(4-fluorophenyl)-2-hydroxypentyl)-3-(hydroxymethyl)benzamide

    Molecular Formula

    C21H27FN2O3

    Molecular Weight

    374.46

    Catalogue Number

    AR-C03001

    Parent Drug

    CITALOPRAM
    4-(5-(dimethylamino)-1-(4-fluorophenyl)-2-hydroxypentyl)-3-(hydroxymethyl)benzoic acid

    Synonym

    4-(5-(dimethylamino)-1-(4-fluorophenyl)-2-hydroxypentyl)-3-(hydroxymethyl)benzoic acid

    Molecular Formula

    C21H26FNO4

    Molecular Weight

    375.44

    Catalogue Number

    AR-C03000

    Parent Drug

    CITALOPRAM
    Citalopram EP Impurity C Oxalate (3-Oxo Citalopram Oxalate)

    Synonym

    1-(3-(dimethylamino)propyl)-1-(4-fluorophenyl)-3-oxo-1,3-dihydroisobenzofuran-5-carbonitrile oxalate

    Molecular Formula

    C20H19FN2O2. C2H2O4

    Molecular Weight

    338.38 90.03

    Catalogue Number

    AR-C02999

    Parent Drug

    CITALOPRAM

    CAS Number

    372941-54-3 (free base)
    Escitalopram EP Impurity H HCl (Citalopram N-Oxide HCl)

    Synonym

    3-(5-cyano-1-(4-fluorophenyl)-1,3-dihydroisobenzofuran-1-yl)-N,N-dimethylpropan-1-amine oxide hydrochloride

    Molecular Formula

    C20H21FN2O2. HCl

    Molecular Weight

    340.40 36.46

    Catalogue Number

    AR-C02998

    Parent Drug

    CITALOPRAM

    CAS Number

    62498-71-9
    4-(4-(dimethylamino)-1-(4-fluorophenyl)-1-hydroxybutyl)-3-(hydroxymethyl)benzaldehyde oxime

    Synonym

    4-(4-(dimethylamino)-1-(4-fluorophenyl)-1-hydroxybutyl)-3-(hydroxymethyl)benzaldehyde oxime

    Molecular Formula

    C20H25FN2O3

    Molecular Weight

    360.43

    Catalogue Number

    AR-C02997

    Parent Drug

    CITALOPRAM
    4-(4-(dimethylamino)-1-hydroxy-1-phenylbutyl)-3-(hydroxymethyl)benzonitrile

    Synonym

    4-(4-(dimethylamino)-1-hydroxy-1-phenylbutyl)-3-(hydroxymethyl)benzonitrile

    Molecular Formula

    C20H24N2O2

    Molecular Weight

    324.42

    Catalogue Number

    AR-C02996

    Parent Drug

    CITALOPRAM
    Escitalopram EP Impurity L

    Synonym

    1-(3-(dimethylamino)propyl)-1-phenyl-1,3-dihydroisobenzofuran-5-carbonitrile oxalate

    Molecular Formula

    C20H22N2O. C2H2O4

    Molecular Weight

    306.41 90.03

    Catalogue Number

    AR-C02995

    Parent Drug

    CITALOPRAM

    CAS Number

    1346617-30-8
    sodium 5-cyano-2-(4-(dimethylamino)-1-(4-fluorophenyl)-1-hydroxybutyl)benzoate

    Synonym

    sodium 5-cyano-2-(4-(dimethylamino)-1-(4-fluorophenyl)-1-hydroxybutyl)benzoate

    Molecular Formula

    C20H20FN2O3. Na

    Molecular Weight

    355.39 22.99

    Catalogue Number

    AR-C02994

    Parent Drug

    CITALOPRAM
    Citalopram Related Compound VI

    Synonym

    4-(4-fluorobenzoyl)-3-(hydroxymethyl)benzonitrile

    Molecular Formula

    C15H10FNO2

    Molecular Weight

    255.25

    Catalogue Number

    AR-C02993

    Parent Drug

    CITALOPRAM

    CAS Number

    260371-16-2
    Citalopram Related Compound V

    Synonym

    1-oxo-1,3-dihydroisobenzofuran-5-carbonitrile

    Molecular Formula

    C9H5NO2

    Molecular Weight

    159.15

    Catalogue Number

    AR-C02992

    Parent Drug

    CITALOPRAM

    CAS Number

    82104-74-3
    Citalopram EP Impurity F HCl

    Synonym

    3-(5-bromo-1-(4-fluorophenyl)-1,3-dihydroisobenzofuran-1-yl)-N,N-dimethylpropan-1-amine hydrochloride

    Molecular Formula

    C19H21BrFNO. HCl

    Molecular Weight

    378.29 36.46

    Catalogue Number

    AR-C02991

    Parent Drug

    CITALOPRAM

    CAS Number

    1644389-68-3
    Citalopram EP Impurity E HCl

    Synonym

    3-(5-chloro-1-(4-fluorophenyl)-1,3-dihydroisobenzofuran-1-yl)-N,N-dimethylpropan-1-amine hydrochloride

    Molecular Formula

    C19H21ClFNO. HCl

    Molecular Weight

    333.84 36.46

    Catalogue Number

    AR-C02990

    Parent Drug

    CITALOPRAM

    CAS Number

    64169-47-7
    Citalopram EP Impurity B Oxalate (3-Hydroxy Citalopram Oxalate)

    Synonym

    1-(3-(dimethylamino)propyl)-1-(4-fluorophenyl)-3-hydroxy-1,3-dihydroisobenzofuran-5-carbonitrile, oxalate salt

    Molecular Formula

    C20H21FN2O2. C2H2O4

    Molecular Weight

    340.40 90.04

    Catalogue Number

    AR-C02989

    Parent Drug

    CITALOPRAM

    CAS Number

    1332724-03-4
    Citalopram EP Impurity A HCl

    Synonym

    1-(3-(dimethylamino)propyl)-1-(4-fluorophenyl)-1,3-dihydroisobenzofuran-5-carboxamide hydrochloride

    Molecular Formula

    C20H23FN2O2. HCl

    Molecular Weight

    342.42 36.46

    Catalogue Number

    AR-C02988

    Parent Drug

    CITALOPRAM

    CAS Number

    64372-56-1 (free base)
    Citalopram Related Compound IV

    Synonym

    1-(3-(dimethylamino)propyl)-1-(4'-fluoro-[1,1'-biphenyl]-4-yl)-1,3-dihydroisobenzofuran-5-carbonitrile

    Molecular Formula

    C26H25FN2O

    Molecular Weight

    400.50

    Catalogue Number

    AR-C02987

    Parent Drug

    CITALOPRAM

    CAS Number

    N/A
    Citalopram Descyano Impurity Oxalate

    Synonym

    3-(1-(4-fluorophenyl)-1,3-dihydroisobenzofuran-1-yl)-N,N-dimethylpropan-1-amine oxalate

    Molecular Formula

    C19H22FNO. C2H2O4

    Molecular Weight

    299.39 90.04

    Catalogue Number

    AR-C02986

    Parent Drug

    CITALOPRAM

    CAS Number

    390817-87-5 (free base)
    Citalopram Dimethylaminobutanone (5-Dimethylaminobutyryl Citalopram)

    Synonym

    4-(dimethylamino)-1-(1-(3-(dimethylamino)propyl)-1-(4-fluorophenyl)-1,3-dihydroisobenzofuran-5-yl)butan-1-one

    Molecular Formula

    C25H33FN2O2

    Molecular Weight

    412.54

    Catalogue Number

    AR-C02985

    Parent Drug

    CITALOPRAM

    CAS Number

    1329745-98-3
    1-(4-Dimethylamino) Oxobutyl Citadiol

    Synonym

    4-(dimethylamino)-1-(4-(4-(dimethylamino)-1-(4-fluorophenyl)-1-hydroxybutyl)-3-(hydroxymethyl)phenyl)butan-1-one

    Molecular Formula

    C25H35FN2O3

    Molecular Weight

    430.56

    Catalogue Number

    AR-C02983

    Parent Drug

    CITALOPRAM

    CAS Number

    1433278-32-0
    Citalopram acetyl impurity

    Synonym

    1-(1-(3-(dimethylamino)propyl)-1-(4-fluorophenyl)-1,3-dihydroisobenzofuran-5-yl)ethanone

    Molecular Formula

    C21H24FNO2

    Molecular Weight

    341.43

    Catalogue Number

    AR-C02982

    Parent Drug

    CITALOPRAM
    Citalopram Carboxylic Acid Impurity

    Synonym

    1-(3-(dimethylamino)propyl)-1-(4-fluorophenyl)-1,3-dihydroisobenzofuran-5-carboxylic acid

    Molecular Formula

    C20H22FNO3

    Molecular Weight

    343.40

    Catalogue Number

    AR-C02981

    Parent Drug

    CITALOPRAM

    CAS Number

    440121-09-5
    Citalopram Chloromethyl Quartenary Ammonium Salt

    Synonym

    N-(chloromethyl)-3-(5-cyano-1-(4-fluorophenyl)-1,3-dihydroisobenzofuran-1-yl)-N,N-dimethylpropan-1-aminium chloride

    Molecular Formula

    C21H23ClFN2O. Cl

    Molecular Weight

    373.88 35.45

    Catalogue Number

    AR-C02980

    Parent Drug

    CITALOPRAM
    Citalopram Alkene Dimer

    Synonym

    (E)-3-(5-cyano-1-(4-fluorophenyl)-1,3-dihydroisobenzofuran-1-yl)-N-(5-cyano-2-(4-(dimethylamino)-1-(4-fluorophenyl)but-1-en-1-yl)benzyl)-N,N-dimethylpropan-1-aminium chloride

    Molecular Formula

    C40H41F2N4O . Cl

    Molecular Weight

    631.80 35.45

    Catalogue Number

    AR-C02979

    Parent Drug

    CITALOPRAM
    Citalopram Ring-opening Impurity Oxalate (Citalopram Alkene Impurity Oxalate) (Mixture of Z and E Isomers)

    Synonym

    4-(4-(dimethylamino)-1-(4-fluorophenyl)but-1-en-1-yl)-3-(hydroxymethyl)benzonitrile oxalate

    Molecular Formula

    C20H21FN2O. C2H2O4

    Molecular Weight

    324.40 90.04

    Catalogue Number

    AR-C02978

    Parent Drug

    CITALOPRAM

    CAS Number

    920282-75-3 (free base)
    (R)-Desmethyl Citalopram-d4 Oxalate

    Molecular Formula

    C19H15FN2OD4 C2H2O4

    Molecular Weight

    314.40 90.04

    Catalogue Number

    AR-C02977

    Parent Drug

    CITALOPRAM

    CAS Number

    N/A
    (S)-Desmethyl Citalopram-d4 Oxalate

    Molecular Formula

    C19H15FN2OD4 C2H2O4

    Molecular Weight

    314.40 90.04

    Catalogue Number

    AR-C02976

    Parent Drug

    CITALOPRAM

    CAS Number

    N/A
    N-Chloromethyl Citalopram-d6 Chloride

    Molecular Formula

    C21H17ClFN2OD6 . Cl

    Molecular Weight

    379.92 35.45

    Catalogue Number

    AR-C02975

    Parent Drug

    CITALOPRAM
    Escitalopram Impurity C

    Synonym

    1-(4-bromo-2-(hydroxymethyl)phenyl)-4-(dimethylamino)-1-(4-fluorophenyl)butan-1-ol hydrobromide

    Molecular Formula

    C19H23BrFNO2 HBr

    Molecular Weight

    396.30 80.91

    Catalogue Number

    AR-C02974

    Parent Drug

    CITALOPRAM

    CAS Number

    N/A
    (R)-N-Didesmethyl Citalopram Oxalate

    Synonym

    (R)-1-(3-aminopropyl)-1-(4-fluorophenyl)-1,3-dihydroisobenzofuran-5-carbonitrile oxalate

    Molecular Formula

    C18H17FN2O. C2H2O4

    Molecular Weight

    296.35 90.04

    Catalogue Number

    AR-C02973

    Parent Drug

    CITALOPRAM
    (S)-N-Didesmethyl Citalopram Oxalate

    Synonym

    (S)-1-(3-aminopropyl)-1-(4-fluorophenyl)-1,3-dihydroisobenzofuran-5-carbonitrile oxalate

    Molecular Formula

    C18H17FN2O. C2H2O4

    Molecular Weight

    296.35 90.04

    Catalogue Number

    AR-C02972

    Parent Drug

    CITALOPRAM

    CAS Number

    166037-78-1 (free base)
    Citalopram Related Compound III

    Synonym

    (S)-(1-(3-(dimethylamino)propyl)-1-(4-fluorophenyl)-1,3-dihydroisobenzofuran-5-yl)(4-fluorophenyl)methanone

    Molecular Formula

    C26H25F2NO2

    Molecular Weight

    421.49

    Catalogue Number

    AR-C02971

    Parent Drug

    CITALOPRAM

    CAS Number

    N/A
    Citalopram Related Compound II

    Synonym

    (S)-4-(4-(dimethylamino)-1-(4-fluorophenyl)-1-hydroxybutyl)-3-(hydroxymethyl)benzonitrile

    Molecular Formula

    C20H23FN2O2

    Molecular Weight

    342.42

    Catalogue Number

    AR-C02970

    Parent Drug

    CITALOPRAM

    CAS Number

    488787-59-3
    Citalopram Related Compound I

    Synonym

    (S)-1-(3-(dimethylamino)propyl)-1-(4-fluorophenyl)-1,3-dihydroisobenzofuran-5-carboxamide

    Molecular Formula

    C20H23FN2O2

    Molecular Weight

    342.42

    Catalogue Number

    AR-C02969

    Parent Drug

    CITALOPRAM

    CAS Number

    N/A
    Desfluoro Citalopram Oxalate

    Synonym

    (S)-1-(3-(dimethylamino)propyl)-1-phenyl-1,3-dihydroisobenzofuran-5-carbonitrile oxalate

    Molecular Formula

    C20H22N2O. C2H2O4

    Molecular Weight

    306.41 90.03

    Catalogue Number

    AR-C02967

    Parent Drug

    CITALOPRAM

    CAS Number

    1093072-86-6
    S-Citalopram N-Oxide (Escitalopram N-Oxide)

    Synonym

    (S)-3-(5-cyano-1-(4-fluorophenyl)-1,3-dihydroisobenzofuran-1-yl)-N,N-dimethylpropan-1-amine oxide

    Molecular Formula

    C20H21FN2O2

    Molecular Weight

    340.40

    Catalogue Number

    AR-C02966

    Parent Drug

    CITALOPRAM

    CAS Number

    917482-45-2
    N-Desmethyl (R)-Citalopram Oxalate

    Synonym

    (R)-1-(4-fluorophenyl)-1-(3-(methylamino)propyl)-1,3-dihydroisobenzofuran-5-carbonitrile oxalate

    Molecular Formula

    C19H19FN2O. C2H2O4

    Molecular Weight

    310.37 90.04

    Catalogue Number

    AR-C02965

    Parent Drug

    CITALOPRAM

    CAS Number

    852172-07-7
    N-Desmethyl (S)-Citalopram Oxalate

    Synonym

    (S)-1-(4-fluorophenyl)-1-(3-(methylamino)propyl)-1,3-dihydroisobenzofuran-5-carbonitrile oxalate

    Molecular Formula

    C19H19FN2O. C2H2O4

    Molecular Weight

    310.37 90.04

    Catalogue Number

    AR-C02964

    Parent Drug

    CITALOPRAM

    CAS Number

    852172-06-6
    (-)-(R)-Citalopram-d4 Oxalate

    Molecular Formula

    C20H17FN2OD4.C2H2O4

    Molecular Weight

    328.43 90.04

    Catalogue Number

    AR-C02963

    Parent Drug

    CITALOPRAM

    CAS Number

    62498-69-5 (non-d)
    (S)-Citalopram-d4 Oxalate

    Molecular Formula

    C20H17D4FN2O. C2H2O4

    Molecular Weight

    328.42 90.03

    Catalogue Number

    AR-C02962

    Parent Drug

    CITALOPRAM

    CAS Number

    219861-08-2 (non-labelled)
    Didesmethyl citalopram-d4.HBr

    Molecular Formula

    C18H13D4FN2O.HBr

    Molecular Weight

    393.27

    Catalogue Number

    AR-C02961

    Parent Drug

    CITALOPRAM

    CAS Number

    62498-69-5(non-d)
    N-Didesmethyl Citalopram Oxalate

    Synonym

    1-(4-fluorophenyl)-1-(3-(methylamino)propyl)-1,3-dihydroisobenzofuran-5-carbonitrile oxalate

    Molecular Formula

    C18H17FN2O. C2H2O4

    Molecular Weight

    296.35 90.04

    Catalogue Number

    AR-C02960

    Parent Drug

    CITALOPRAM
    N-Desmethyl Citalopram-d4 Oxalate

    Molecular Formula

    C19H15FN2OD4. C2H2O4

    Molecular Weight

    314.40 90.04

    Catalogue Number

    AR-C02959

    Parent Drug

    CITALOPRAM

    CAS Number

    62498-68-4 (non-labelled)
    Citalopram EP Impurity D HBr (N-Desmethyl Citalopram HBr)

    Synonym

    1-(4-fluorophenyl)-1-(3-(methylamino)propyl)-1,3-dihydroisobenzofuran-5-carbonitrile hydrobromide

    Molecular Formula

    C19H19FN2O. HBr

    Molecular Weight

    310.37 80.91

    Catalogue Number

    AR-C02958

    Parent Drug

    CITALOPRAM

    CAS Number

    1188264-72-3