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Heterocyclic Building Blocks

3723
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  • 6-Chloropyrimidine-4,5-diamine

    Purity:
    ≥ 98% (GC)
    Synonym:
    4,5-Diamino-6-chloropyrimidine
    Catalog Number:
    44867
    CAS Number:
    4316-98-7
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00023270
    Molecular Formula:
    C4H5ClN4
    Molecular Weight:
    144.56
    Specification Sheet SDS

  • 6-Chloro-2,4-dimethoxypyrimidine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44866
    CAS Number:
    6320-15-6
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00006068
    Molecular Formula:
    C6H7ClN2O2
    Molecular Weight:
    174.58
    Specification Sheet SDS

  • 1,3-Dimethyl-6-chlorouracil

    Purity:
    ≥ 99% (Assay by titration)
    Synonym:
    6-Chloro-1,3-dimethyluracil
    Catalog Number:
    44861
    CAS Number:
    6972-27-6
    Purity Limit:
    ≥ 99% (Assay by titration)
    MDL NO:
    MFCD00038066
    Molecular Formula:
    C6H7ClN2O2
    Molecular Weight:
    174.58
    Specification Sheet SDS

  • 2,4-Dichloro-5-methylpyrimidine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44854
    CAS Number:
    1780-31-0
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00023197
    Molecular Formula:
    C5H4Cl2N2
    Molecular Weight:
    163.0
    Specification Sheet SDS

  • 4,6-Dichloro-2-(methylsulfonyl)pyrimidine

    Purity:
    ≥ 98% (GC)
    Synonym:
    4,6-Dichloro-2-(methanesulfonyl)pyrimidine
    Catalog Number:
    44858
    CAS Number:
    4489-34-3
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00672147
    Molecular Formula:
    C5H4Cl2N2O2S
    Molecular Weight:
    227.06
    Specification Sheet SDS

  • 2,4-Dichloro-6-methylpyrimidine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44857
    CAS Number:
    5424-21-5
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00006064
    Molecular Formula:
    C5H4Cl2N2
    Molecular Weight:
    163.0
    Specification Sheet SDS

  • 2-Chloro-4,6-dimethoxypyrimidine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44834
    CAS Number:
    13223-25-1
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00274530
    Molecular Formula:
    C6H7ClN2O2
    Molecular Weight:
    174.58
    Specification Sheet SDS

  • 4,6-Dichloro-5-(2-methoxyphenoxy)-2,2'-bipyrimidine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44859
    CAS Number:
    150728-13-5
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD03839838
    Molecular Formula:
    C15H10Cl2N4O2
    Molecular Weight:
    349.17
    Specification Sheet SDS

  • 2,4-Dichloro-5-iodopyrimidine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44863
    CAS Number:
    13544-44-0
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD01898087
    Molecular Formula:
    C4HCl2IN2
    Molecular Weight:
    274.87
    Specification Sheet SDS

  • 2,4,6,8-Tetrachloropyrimido[5,4-d]pyrimidine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44860
    CAS Number:
    32980-71-5
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD02093495
    Molecular Formula:
    C6Cl4N4
    Molecular Weight:
    269.89
    Specification Sheet SDS

  • 2,4,6-Trichloropyrimidine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44849
    CAS Number:
    3764-01-0
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00006063
    Molecular Formula:
    C4HCl3N2
    Molecular Weight:
    183.42
    Specification Sheet SDS

  • 2-Chloro-5-ethylpyrimidine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44847
    CAS Number:
    111196-81-7
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00799503
    Molecular Formula:
    C6H7ClN2
    Molecular Weight:
    142.59
    Specification Sheet SDS

  • 4-Chloro-6-(4-chlorophenyl)-2-phenylpyrimidine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44853
    CAS Number:
    1354749-13-5
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD30536778
    Molecular Formula:
    C16H10Cl2N2
    Molecular Weight:
    301.17
    Specification Sheet SDS

  • 4-(3-Chlorophenyl)-2,6-diphenylpyrimidine

    Purity:
    ≥ 98% (HPLC)
    Catalog Number:
    44852
    CAS Number:
    1536209-87-6
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD29477687
    Molecular Formula:
    C22H15ClN2
    Molecular Weight:
    342.83
    Specification Sheet SDS

  • 5-Amino-4,6-dichloro-2-methylpyrimidine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44856
    CAS Number:
    39906-04-2
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00194053
    Molecular Formula:
    C5H5Cl2N3
    Molecular Weight:
    178.02
    Specification Sheet SDS

  • 5-Chloro-2-(methylthio)pyrimidine-4-carboxylic acid

    Purity:
    ≥ 97% (GC)
    Catalog Number:
    44844
    CAS Number:
    61727-33-1
    Purity Limit:
    ≥ 97% (GC)
    MDL NO:
    MFCD00173907
    Molecular Formula:
    C6H5ClN2O2S
    Molecular Weight:
    204.63
    Specification Sheet SDS

  • 2,4,5-Trichloropyrimidine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44850
    CAS Number:
    5750-76-5
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD03788200
    Molecular Formula:
    C4HCl3N2
    Molecular Weight:
    183.42
    Specification Sheet SDS

  • 4-Amino-6-chloropyrimidine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44846
    CAS Number:
    5305-59-9
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00053576
    Molecular Formula:
    C4H4ClN3
    Molecular Weight:
    129.55
    Specification Sheet SDS

  • 4-Amino-2,6-dichloropyrimidine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44848
    CAS Number:
    10132-07-7
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00038015
    Molecular Formula:
    C4H3Cl2N3
    Molecular Weight:
    163.99
    Specification Sheet SDS

  • 2-Amino-4,6-dichloro-5-formamidopyrimidine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    N-(2-Amino-4,6-dichloro-5-pyrimidinyl)formamide
    Catalog Number:
    44842
    CAS Number:
    171887-03-9
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD04112936
    Molecular Formula:
    C5H4Cl2N4O
    Molecular Weight:
    207.01
    Specification Sheet SDS

  • 2,4,6-Trichloro-5-pyrimidinecarboxaldehyde

    Purity:
    ≥ 98% (GC)
    Synonym:
    2,4,6-Trichloro-5-formylpyrimidine
    Catalog Number:
    44855
    CAS Number:
    50270-27-4
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD02257700
    Molecular Formula:
    C5HCl3N2O
    Molecular Weight:
    211.43
    Specification Sheet SDS

  • 2-Chloro-5-methoxypyrimidine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44845
    CAS Number:
    22536-65-8
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD08702770
    Molecular Formula:
    C5H5ClN2O
    Molecular Weight:
    144.56
    Specification Sheet SDS

  • 4-Chloro-6-hydroxypyrimidine

    Purity:
    ≥ 98% (GC)
    Synonym:
    6-Chloro-4-pyrimidinol
    Catalog Number:
    44836
    CAS Number:
    4765-77-9
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00233957
    Molecular Formula:
    C4H3ClN2O
    Molecular Weight:
    130.53
    Specification Sheet SDS

  • 4-([1,1'-Biphenyl]-4-yl)-6-chloro-2-phenylpyrimidine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44832
    CAS Number:
    1689538-58-6
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD29477698
    Molecular Formula:
    C22H15ClN2
    Molecular Weight:
    342.83
    Specification Sheet SDS

  • 2-Amino-5-chloropyrimidine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44837
    CAS Number:
    5428-89-7
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00014604
    Molecular Formula:
    C4H4ClN3
    Molecular Weight:
    129.55
    Specification Sheet SDS

  • 2-Chloro-5-methylpyrimidine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44814
    CAS Number:
    22536-61-4
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD09260903
    Molecular Formula:
    C5H5ClN2
    Molecular Weight:
    128.56
    Specification Sheet SDS

  • 6-Chloromethyluracil

    Purity:
    ≥ 98% (HPLC)
    Catalog Number:
    44841
    CAS Number:
    18592-13-7
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00010095
    Molecular Formula:
    C5H5ClN2O2
    Molecular Weight:
    160.56
    Specification Sheet SDS

  • Ethyl 2-chloropyrimidine-5-carboxylate

    Purity:
    ≥ 98% (GC)
    Synonym:
    2-Chloropyrimidine-5-carboxylic acid ethyl ester
    Catalog Number:
    44833
    CAS Number:
    89793-12-4
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD09863164
    Molecular Formula:
    C7H7ClN2O2
    Molecular Weight:
    186.6
    Specification Sheet SDS

  • 5-Bromo-2-hydroxypyrimidine

    Purity:
    ≥ 95% (GC)
    Synonym:
    5-Bromo-2-pyrimidinol
    Catalog Number:
    44828
    CAS Number:
    38353-06-9
    Purity Limit:
    ≥ 95% (GC)
    MDL NO:
    MFCD00233952
    Molecular Formula:
    C4H3BrN2O
    Molecular Weight:
    174.99
    Specification Sheet SDS

  • 2-Amino-4-chloro-6-methoxypyrimidine

    Purity:
    ≥ 95% (HPLC)
    Catalog Number:
    44840
    CAS Number:
    5734-64-5
    Purity Limit:
    ≥ 95% (HPLC)
    MDL NO:
    MFCD00233535
    Molecular Formula:
    C5H6ClN3O
    Molecular Weight:
    159.57
    Specification Sheet SDS

  • 4-Amino-5,6-dichloropyrimidine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44835
    CAS Number:
    310400-38-5
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD09837293
    Molecular Formula:
    C4H3Cl2N3
    Molecular Weight:
    163.99
    Specification Sheet SDS

  • 2-Bromopyrimidine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44824
    CAS Number:
    4595-60-2
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00014601
    Molecular Formula:
    C4H3BrN2
    Molecular Weight:
    158.99
    Specification Sheet SDS

  • Ethyl 2,4-Dichloropyrimidine-5-carboxylate

    Purity:
    ≥ 98% (GC)
    Synonym:
    2,4-Dichloropyrimidine-5-carboxylic acid ethyl ester
    Catalog Number:
    44829
    CAS Number:
    51940-64-8
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD09910281
    Molecular Formula:
    C7H6Cl2N2O2
    Molecular Weight:
    221.04
    Specification Sheet SDS

  • 5-Bromo-2-methylpyrimidine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44827
    CAS Number:
    7752-78-5
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD07375143
    Molecular Formula:
    C5H5BrN2
    Molecular Weight:
    173.01
    Specification Sheet SDS

  • 2,4-Dichloro-5-methoxypyrimidine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44806
    CAS Number:
    19646-07-2
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD02685670
    Molecular Formula:
    C5H4Cl2N2O
    Molecular Weight:
    179.0
    Specification Sheet SDS

  • 5-(4-Bromophenyl)-4,6-dichloropyrimidine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44830
    CAS Number:
    146533-41-7
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD13151897
    Molecular Formula:
    C10H5BrCl2N2
    Molecular Weight:
    303.97
    Specification Sheet SDS

  • 5-Bromo-2-methoxypyrimidine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44831
    CAS Number:
    14001-66-2
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD04973351
    Molecular Formula:
    C5H5BrN2O
    Molecular Weight:
    189.01
    Specification Sheet SDS

  • 5-Bromo-2-tert-butylpyrimidine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44826
    CAS Number:
    85929-94-8
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00235040
    Molecular Formula:
    C8H11BrN2
    Molecular Weight:
    215.09
    Specification Sheet SDS

  • 4-Bromo-2,6-diphenylpyrimidine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44825
    CAS Number:
    40734-24-5
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00234885
    Molecular Formula:
    C16H11BrN2
    Molecular Weight:
    311.18
    Specification Sheet SDS

  • 2-Chloro-5-nitropyrimidine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44815
    CAS Number:
    10320-42-0
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD04117995
    Molecular Formula:
    C4H2ClN3O2
    Molecular Weight:
    159.53
    Specification Sheet SDS

  • 5-Bromo-2-(methylthio)pyrimidine-4-carboxylic acid

    Purity:
    ≥ 97% (Assay by titration)
    Catalog Number:
    44822
    CAS Number:
    50593-92-5
    Purity Limit:
    ≥ 97% (Assay by titration)
    MDL NO:
    MFCD00238866
    Molecular Formula:
    C6H5BrN2O2S
    Molecular Weight:
    249.08
    Specification Sheet SDS

  • 4-Chloro-7-(p-toluenesulfonyl)-7H-pyrrolo[2,3-d]pyrimidine

    Purity:
    ≥ 96% (HPLC)
    Synonym:
    4-Chloro-7-tosyl-7H-pyrrolo[2,3-d]pyrimidine
    Catalog Number:
    44813
    CAS Number:
    479633-63-1
    Purity Limit:
    ≥ 96% (HPLC)
    MDL NO:
    MFCD09907939
    Molecular Formula:
    C13H10ClN3O2S
    Molecular Weight:
    307.75
    Specification Sheet SDS

  • 4-Chloro-2-methylpyrimidine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44816
    CAS Number:
    4994-86-9
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00234069
    Molecular Formula:
    C5H5ClN2
    Molecular Weight:
    128.56
    Specification Sheet SDS

  • 5-Bromo-2-chloropyrimidine

    Purity:
    ≥ 98% (HPLC)
    Catalog Number:
    44821
    CAS Number:
    32779-36-5
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00483232
    Molecular Formula:
    C4H2BrClN2
    Molecular Weight:
    193.43
    Specification Sheet SDS

  • 5-Bromopyrimidine

    Purity:
    ≥ 99% (GC)
    Catalog Number:
    44823
    CAS Number:
    4595-59-9
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00006117
    Molecular Formula:
    C4H3BrN2
    Molecular Weight:
    158.99
    Specification Sheet SDS

  • 4-Chloro-6-methyl-2-(methylthio)pyrimidine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44810
    CAS Number:
    17119-73-2
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00023233
    Molecular Formula:
    C6H7ClN2S
    Molecular Weight:
    174.65
    Specification Sheet SDS

  • 4-Chloro-6-methoxypyrimidine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44820
    CAS Number:
    26452-81-3
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD06200211
    Molecular Formula:
    C5H5ClN2O
    Molecular Weight:
    144.56
    Specification Sheet SDS

  • 4,6-Dichloro-2-methylpyrimidine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44817
    CAS Number:
    1780-26-3
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00090472
    Molecular Formula:
    C5H4Cl2N2
    Molecular Weight:
    163.0
    Specification Sheet SDS

  • 5-Bromo-4-chloro-2-(methylthio)pyrimidine

    Hazmat
    Purity:
    ≥ 98% (GC)
    Hazmat
    Catalog Number:
    44819
    CAS Number:
    63810-78-6
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00023232
    Molecular Formula:
    C5H4BrClN2S
    Molecular Weight:
    239.52
    Specification Sheet SDS

  • 4-Amino-5-chloro-2,6-dimethylpyrimidine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44811
    CAS Number:
    2858-20-0
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00191727
    Molecular Formula:
    C6H8ClN3
    Molecular Weight:
    157.6
    Specification Sheet SDS
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