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Heterocyclic Building Blocks

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  • 2-Ethoxy-3-isopropylpyrazine

    Purity:
    ≥ 95% (GC)
    Catalog Number:
    43579
    CAS Number:
    72797-16-1
    Purity Limit:
    ≥ 95% (GC)
    MDL NO:
    MFCD00038029
    Molecular Formula:
    C9H14N2O
    Molecular Weight:
    166.22
    Specification Sheet SDS

  • 2,3-Dicyanopyrazine

    Purity:
    ≥ 99% (GC)
    Synonym:
    Pyrazine-2,3-dicarbonitrile
    Catalog Number:
    43574
    CAS Number:
    13481-25-9
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00059771
    Molecular Formula:
    C6H2N4
    Molecular Weight:
    130.11
    Specification Sheet SDS

  • 2-Amino-6-methylpyrazine

    Purity:
    ≥ 97% (GC)
    Synonym:
    6-methylpyrazin-2-amine
    Catalog Number:
    43584
    CAS Number:
    5521-56-2
    Purity Limit:
    ≥ 97% (GC)
    MDL NO:
    MFCD08235193
    Molecular Formula:
    C5H7N3
    Molecular Weight:
    109.13
    Specification Sheet SDS

  • 2-Acetyl-3-methylpyrazine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    43563
    CAS Number:
    23787-80-6
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00014612
    Molecular Formula:
    C7H8N2O
    Molecular Weight:
    136.15
    Specification Sheet SDS

  • Pyrazine-2,3-dicarboxylic acid monoamide

    Purity:
    ≥ 97% (HPLC)
    Synonym:
    3-Aminocarbonylpyrazine-2-carboxylic acid
    Catalog Number:
    43580
    CAS Number:
    67367-37-7
    Purity Limit:
    ≥ 97% (HPLC)
    MDL NO:
    MFCD00191679
    Molecular Formula:
    C6H5N3O3
    Molecular Weight:
    167.12
    Specification Sheet SDS

  • 5-Ethyl-2,3-dimethylpyrazine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    43581
    CAS Number:
    15707-34-3
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD04038059
    Molecular Formula:
    C8H12N2
    Molecular Weight:
    136.2
    Specification Sheet SDS

  • 2-Furfurylthio-3-methylpyrazine

    Purity:
    ≥ 95% (GC)
    Catalog Number:
    43567
    CAS Number:
    59303-07-0
    Purity Limit:
    ≥ 95% (GC)
    MDL NO:
    MFCD00055031
    Molecular Formula:
    C10H10N2OS
    Molecular Weight:
    206.26
    Specification Sheet SDS

  • 5-Methylpyrazine-2-carboxylic acid

    Purity:
    ≥ 98% (HPLC)
    Catalog Number:
    43560
    CAS Number:
    5521-55-1
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00068241
    Molecular Formula:
    C6H6N2O2
    Molecular Weight:
    138.13
    Specification Sheet SDS

  • Comanic acid

    Purity:
    ≥ 98% (GC)
    Synonym:
    4-Oxo-4H-pyran-2-carboxylic acid
    Catalog Number:
    43547
    CAS Number:
    499-05-8
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00059958
    Molecular Formula:
    C6H4O4
    Molecular Weight:
    140.09
    Specification Sheet SDS

  • 2-Propylpyrazine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    43569
    CAS Number:
    18138-03-9
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00049214
    Molecular Formula:
    C7H10N2
    Molecular Weight:
    122.17
    Specification Sheet SDS

  • 2-Methyl-3-propylpyrazine

    Purity:
    ≥ 95% (GC)
    Catalog Number:
    43571
    CAS Number:
    15986-80-8
    Purity Limit:
    ≥ 95% (GC)
    MDL NO:
    MFCD00010096
    Molecular Formula:
    C8H12N2
    Molecular Weight:
    136.2
    Specification Sheet SDS

  • 4-Methoxy-6-methyl-2H-pyran-2-one

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    43557
    CAS Number:
    672-89-9
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00006640
    Molecular Formula:
    C7H8O3
    Molecular Weight:
    140.14
    Specification Sheet SDS

  • 2-Ethyl-3-(methylthio)pyrazine

    Purity:
    ≥ 98% (GC)
    Synonym:
    2-(Methylthio)-3-ethylpyrazine
    Catalog Number:
    43573
    CAS Number:
    72987-62-3
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00038027
    Molecular Formula:
    C7H10N2S
    Molecular Weight:
    154.23
    Specification Sheet SDS

  • 2-Butyl-3-methylpyrazine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    43570
    CAS Number:
    15987-00-5
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00038031
    Molecular Formula:
    C9H14N2
    Molecular Weight:
    150.23
    Specification Sheet SDS

  • 3-Hydroxy-2,6-bis(hydroxymethyl)-4-pyrone

    Purity:
    ≥ 98% (HPLC)
    Catalog Number:
    43550
    CAS Number:
    2029-49-4
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00110732
    Molecular Formula:
    C7H8O5
    Molecular Weight:
    172.14
    Specification Sheet SDS

  • 2-tert-Butylpyrazine

    Purity:
    ≥ 99% (GC)
    Catalog Number:
    43572
    CAS Number:
    32741-11-0
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00069193
    Molecular Formula:
    C8H12N2
    Molecular Weight:
    136.2
    Specification Sheet SDS

  • 2-Vinylpyrazine (stabilized with TBC)

    Hazmat
    Purity:
    ≥ 98% (GC)
    Synonym:
    2-Ethenylpyrazine (stabilized with TBC)
    Hazmat
    Catalog Number:
    43568
    CAS Number:
    4177-16-6
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00051591
    Molecular Formula:
    C6H6N2
    Molecular Weight:
    106.13
    Specification Sheet SDS

  • Tetrahydropyran-4-methanol

    Purity:
    ≥ 97% (GC)
    Synonym:
    4-(Hydroxymethyl)tetrahydropyran
    Catalog Number:
    43544
    CAS Number:
    14774-37-9
    Purity Limit:
    ≥ 97% (GC)
    MDL NO:
    MFCD00457804
    Molecular Formula:
    C6H12O2
    Molecular Weight:
    116.16
    Specification Sheet SDS

  • 2-(Aminomethyl)-5-methylpyrazine

    Hazmat
    Purity:
    ≥ 98% (GC)
    Hazmat
    Catalog Number:
    43564
    CAS Number:
    132664-85-8
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD01314542
    Molecular Formula:
    C6H9N3
    Molecular Weight:
    123.16
    Specification Sheet SDS

  • 3,3-Diphenyl-3H-naphtho[2,1-b]pyran

    Purity:
    ≥ 98% (HPLC)
    Catalog Number:
    43554
    CAS Number:
    4222-20-2
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00369541
    Molecular Formula:
    C25H18O
    Molecular Weight:
    334.42
    Specification Sheet SDS

  • Tetrahydropyran-2-methanol

    Purity:
    ≥ 96% (GC)
    Synonym:
    2-(Hydroxymethyl)tetrahydropyran
    Catalog Number:
    43558
    CAS Number:
    100-72-1
    Purity Limit:
    ≥ 96% (GC)
    MDL NO:
    MFCD00006624
    Molecular Formula:
    C6H12O2
    Molecular Weight:
    116.16
    Specification Sheet SDS

  • 2-Isopropyl-3-methoxypyrazine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    43562
    CAS Number:
    25773-40-4
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00006135
    Molecular Formula:
    C8H12N2O
    Molecular Weight:
    152.2
    Specification Sheet SDS

  • Isoguanine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    6-Amino-1,3-dihydro-2H-purin-2-one
    Catalog Number:
    43528
    CAS Number:
    3373-53-3
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00142931
    Molecular Formula:
    C5H5N5O
    Molecular Weight:
    151.13
    Specification Sheet SDS

  • 3,4-Dihydro-2-methoxy-2H-pyran

    Hazmat
    Purity:
    ≥ 97% (GC)
    Synonym:
    2-Methoxy-3,4-dihydro-2H-pyran
    Hazmat
    Catalog Number:
    43555
    CAS Number:
    4454-05-1
    Purity Limit:
    ≥ 97% (GC)
    MDL NO:
    MFCD00006560
    Molecular Formula:
    C6H10O2
    Molecular Weight:
    114.14
    Specification Sheet SDS

  • 4-(Dicyanomethylene)-2,6-dimethyl-4H-pyran

    Hazmat
    Purity:
    ≥ 98% (HPLC)
    Synonym:
    2-(2,6-Dimethyl-4H-pyran-4-ylidene)propanedinitrile
    Hazmat
    Catalog Number:
    43556
    CAS Number:
    28286-88-6
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00181519
    Molecular Formula:
    C10H8N2O
    Molecular Weight:
    172.19
    Specification Sheet SDS

  • Pyrazine

    Hazmat
    Purity:
    ≥ 98% (GC)
    Hazmat
    Catalog Number:
    43565
    CAS Number:
    290-37-9
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00006122
    Molecular Formula:
    C4H4N2
    Molecular Weight:
    80.09
    Specification Sheet SDS

  • Dimethyl tetrahydropyran-4,4-dicarboxylate

    Purity:
    ≥ 98% (GC)
    Synonym:
    Tetrahydropyran-4,4-dicarboxylic acid dimethyl ester
    Catalog Number:
    43553
    CAS Number:
    149777-00-4
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD02093499
    Molecular Formula:
    C9H14O5
    Molecular Weight:
    202.21
    Specification Sheet SDS

  • 4-Methyl-2-(2-methyl-1-propenyl)tetrahydropyran (cis- and trans- mixture)

    Purity:
    ≥ 97% (GC)
    Catalog Number:
    43549
    CAS Number:
    16409-43-1
    Purity Limit:
    ≥ 97% (GC)
    MDL NO:
    MFCD00036607
    Molecular Formula:
    C10H18O
    Molecular Weight:
    154.25
    Specification Sheet SDS

  • 6-Amyl-2-pyrone

    Purity:
    ≥ 96% (GC)
    Synonym:
    6-Pentyl-2-pyrone
    Catalog Number:
    43546
    CAS Number:
    27593-23-3
    Purity Limit:
    ≥ 96% (GC)
    MDL NO:
    MFCD00047551
    Molecular Formula:
    C10H14O2
    Molecular Weight:
    166.22
    Specification Sheet SDS

  • 2-Allyloxytetrahydropyran

    Hazmat
    Purity:
    ≥ 95% (GC)
    Synonym:
    Tetrahydro-2-allyloxy-2H-pyran
    Hazmat
    Catalog Number:
    43551
    CAS Number:
    4203-49-0
    Purity Limit:
    ≥ 95% (GC)
    MDL NO:
    MFCD00154089
    Molecular Formula:
    C8H14O2
    Molecular Weight:
    142.2
    Specification Sheet SDS

  • N-Methyl-7H-purin-6-amine

    Purity:
    ≥ 97% (HPLC)
    Synonym:
    6-methylaminopurine
    Catalog Number:
    43534
    CAS Number:
    443-72-1
    Purity Limit:
    ≥ 97% (HPLC)
    MDL NO:
    MFCD00075820
    Molecular Formula:
    C6H7N5
    Molecular Weight:
    149.16
    Specification Sheet SDS

  • Tetrahydro-4-pyranol

    Purity:
    ≥ 99.5% (GC)
    Synonym:
    4-Hydroxytetrahydropyran
    Catalog Number:
    43545
    CAS Number:
    2081-44-9
    Purity Limit:
    ≥ 99.5% (GC)
    MDL NO:
    MFCD00006633
    Molecular Formula:
    C5H10O2
    Molecular Weight:
    102.13
    Specification Sheet SDS

  • 3,4-Dihydro-2-methoxy-4-methyl-2H-pyran (cis- and trans- mixture)

    Hazmat
    Purity:
    ≥ 98% (GC)
    Hazmat
    Catalog Number:
    43539
    CAS Number:
    53608-95-0
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00143062
    Molecular Formula:
    C7H12O2
    Molecular Weight:
    128.17
    Specification Sheet SDS

  • 2-Thioxanthine

    Purity:
    ≥ 80% (HPLC)
    Synonym:
    6-Hydroxy-2-mercaptopurine
    Catalog Number:
    43532
    CAS Number:
    2487-40-3
    Purity Limit:
    ≥ 80% (HPLC)
    MDL NO:
    MFCD00031505
    Molecular Formula:
    C5H4N4OS
    Molecular Weight:
    168.17
    Specification Sheet SDS

  • 2-Ethoxy-3-methylpyrazine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    43561
    CAS Number:
    32737-14-7
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00038025
    Molecular Formula:
    C7H10N2O
    Molecular Weight:
    138.17
    Specification Sheet SDS

  • 2-Acetamido-6-hydroxypurine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    N-Acetylguanine
    Catalog Number:
    43535
    CAS Number:
    19962-37-9
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00078201
    Molecular Formula:
    C7H7N5O2
    Molecular Weight:
    193.17
    Specification Sheet SDS

  • 2-Vinyloxytetrahydropyran

    Hazmat
    Purity:
    ≥ 97% (GC)
    Synonym:
    Tetrahydro-2-vinyloxy-2H-pyran
    Hazmat
    Catalog Number:
    43541
    CAS Number:
    22408-41-9
    Purity Limit:
    ≥ 97% (GC)
    MDL NO:
    MFCD03093644
    Molecular Formula:
    C7H12O2
    Molecular Weight:
    128.17
    Specification Sheet SDS

  • Tetrahydropyran

    Hazmat
    Purity:
    ≥ 98% (GC)
    Synonym:
    THP
    Hazmat
    Catalog Number:
    43543
    CAS Number:
    142-68-7
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00006585
    Molecular Formula:
    C5H10O
    Molecular Weight:
    86.13
    Specification Sheet SDS

  • 2-(2-Nitroethoxy)tetrahydropyran

    Hazmat
    Purity:
    ≥ 85% (GC)
    Synonym:
    Tetrahydro-2-(2-nitroethoxy)-2H-pyran
    Hazmat
    Catalog Number:
    43540
    CAS Number:
    75233-61-3
    Purity Limit:
    ≥ 85% (GC)
    MDL NO:
    MFCD00010858
    Molecular Formula:
    C7H13NO4
    Molecular Weight:
    175.18
    Specification Sheet SDS

  • Kojic acid sodium salt hydrate

    Purity:
    ≥ 98% (Assay by titration)
    Synonym:
    5-Hydroxy-2-(hydroxymethyl)-4H-pyran-4-one sodium salt hydrate
    Catalog Number:
    43542
    CAS Number:
    70145-54-9
    Purity Limit:
    ≥ 98% (Assay by titration)
    MDL NO:
    MFCD00191537
    Molecular Formula:
    C6H5NaO4·xH2O
    Molecular Weight:
    164.09
    Specification Sheet SDS

  • 2,6-Diaminopurine monohydrate

    Purity:
    ≥ 97% (HPLC)
    Catalog Number:
    43538
    CAS Number:
    402846-48-4
    Purity Limit:
    ≥ 97% (HPLC)
    MDL NO:
    MFCD00213668
    Molecular Formula:
    C5H6N6·H2O
    Molecular Weight:
    168.17
    Specification Sheet SDS

  • 6-Methoxypurine

    Purity:
    ≥ 98% (HPLC)
    Catalog Number:
    43537
    CAS Number:
    1074-89-1
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00005574
    Molecular Formula:
    C6H6N4O
    Molecular Weight:
    150.14
    Specification Sheet SDS

  • 6-O-Methylguanine

    Purity:
    ≥ 97% (Assay by titration)
    Synonym:
    2-Amino-6-methoxypurine
    Catalog Number:
    43533
    CAS Number:
    20535-83-5
    Purity Limit:
    ≥ 97% (Assay by titration)
    MDL NO:
    MFCD00133009
    Molecular Formula:
    C6H7N5O
    Molecular Weight:
    165.16
    Specification Sheet SDS

  • 6-Benzyloxypurine

    Purity:
    ≥ 98% (HPLC)
    Catalog Number:
    43530
    CAS Number:
    57500-07-9
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00213666
    Molecular Formula:
    C12H10N4O
    Molecular Weight:
    226.24
    Specification Sheet SDS

  • 8-Bromo-7-(2-butyn-1-yl)-3-methylxanthine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    8-Bromo-7-(2-butyn-1-yl)-3,7-dihydro-3-methyl-1H-purine-2,6-dione
    Catalog Number:
    43531
    CAS Number:
    666816-98-4
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD22126091
    Molecular Formula:
    C10H9BrN4O2
    Molecular Weight:
    297.11
    Specification Sheet SDS

  • N2,9-Diacetylguanine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    2-Acetamido-9-acetyl-6-oxopurine
    Catalog Number:
    43536
    CAS Number:
    3056-33-5
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00142116
    Molecular Formula:
    C9H9N5O3
    Molecular Weight:
    235.2
    Specification Sheet SDS

  • 2-Aminopurine

    Purity:
    ≥ 98% (HPLC)
    Catalog Number:
    43527
    CAS Number:
    452-06-2
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00005566
    Molecular Formula:
    C5H5N5
    Molecular Weight:
    135.13
    Specification Sheet SDS

  • N-(2,6-Dimethylphenyl)piperidine-2-carboxamide

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    N-Desbutyl bupivacaine
    Catalog Number:
    43508
    CAS Number:
    15883-20-2
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD01701244
    Molecular Formula:
    C14H20N2O
    Molecular Weight:
    232.33
    Specification Sheet SDS

  • 8-Benzyltheophylline

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    8-Benzyl-1,3-dimethyl-3,9-dihydro-1H-purine-2,6-dione
    Catalog Number:
    43529
    CAS Number:
    2879-15-4
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00067027
    Molecular Formula:
    C14H14N4O2
    Molecular Weight:
    270.29
    Specification Sheet SDS

  • Methyl 1-benzyl-4-oxo-3-piperidinecarboxylate hydrochloride

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    1-Benzyl-4-oxo-3-piperidinecarboxylic acid methyl ester hydrochloride
    Catalog Number:
    43522
    CAS Number:
    3939-01-3
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00012799
    Molecular Formula:
    C14H17NO3·HCl
    Molecular Weight:
    283.75
    Specification Sheet SDS
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