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Heterocyclic Building Blocks

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  • 1,3-Dihydro-1-methoxyisobenzofuran

    Purity:
    ≥ 97% (GC)
    Synonym:
    1-Methoxyisocoumaran
    Catalog Number:
    42645
    CAS Number:
    67536-29-2
    Purity Limit:
    ≥ 97% (GC)
    MDL NO:
    MFCD12407127
    Molecular Formula:
    C9H10O2
    Molecular Weight:
    150.18
    Specification Sheet SDS

  • 5-Cyanophthalide

    Purity:
    ≥ 98% (HPLC)
    Catalog Number:
    42647
    CAS Number:
    82104-74-3
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD01072882
    Molecular Formula:
    C9H5NO2
    Molecular Weight:
    159.14
    Specification Sheet SDS

  • Benzofuran-2-carboxylic acid

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Coumarilic acid
    Catalog Number:
    42649
    CAS Number:
    496-41-3
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00005848
    Molecular Formula:
    C9H6O3
    Molecular Weight:
    162.14
    Specification Sheet SDS

  • Dinaphtho[2,1-b:1',2'-d]furan

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    42642
    CAS Number:
    194-63-8
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD30833908
    Molecular Formula:
    C20H12O
    Molecular Weight:
    268.32
    Specification Sheet SDS

  • Dibenzofuran

    Hazmat
    Purity:
    ≥ 98% (GC)
    Synonym:
    Diphenylene oxide
    Hazmat
    Catalog Number:
    42650
    CAS Number:
    132-64-9
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00004968
    Molecular Formula:
    C12H8O
    Molecular Weight:
    168.2
    Specification Sheet SDS

  • 2,3-Dihydro-2,2-dimethyl-7-hydroxybenzofuran

    Hazmat
    Purity:
    ≥ 98% (GC)
    Synonym:
    2,2-Dimethyl-7-hydroxycoumaran
    Hazmat
    Catalog Number:
    42648
    CAS Number:
    1563-38-8
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00075382
    Molecular Formula:
    C10H12O2
    Molecular Weight:
    164.2
    Specification Sheet SDS

  • 2,3-Benzofuran

    Hazmat
    Purity:
    ≥ 98% (NMR)
    Synonym:
    Coumarone
    Hazmat
    Catalog Number:
    42639
    CAS Number:
    271-89-6
    Purity Limit:
    ≥ 98% (NMR)
    MDL NO:
    MFCD00005847
    Molecular Formula:
    C8H6O
    Molecular Weight:
    118.14
    Specification Sheet SDS

  • 6-(1-Naphthylamino)-1,4-benzodioxane

    Purity:
    ≥ 97% (GC)
    Synonym:
    N-[2,3-Dihydrobenzo[1,4]dioxin-6-yl]-1-naphthylamine
    Catalog Number:
    42622
    CAS Number:
    1820711-54-3
    Purity Limit:
    ≥ 97% (GC)
    MDL NO:
    MFCD11975435
    Molecular Formula:
    C18H15NO2
    Molecular Weight:
    277.32
    Specification Sheet SDS

  • Dibenzofuran-2-carboxaldehyde

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    42638
    CAS Number:
    5397-82-0
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00136272
    Molecular Formula:
    C13H8O2
    Molecular Weight:
    196.21
    Specification Sheet SDS

  • 6,7-Dihydro-1H-indeno[5,4-b]furan-8(2H)-one

    Purity:
    ≥ 98% (GC)
    Synonym:
    1,2,6,7-Tetrahydro-8H-indeno[5,4-b]furan-8-one
    Catalog Number:
    42640
    CAS Number:
    196597-78-1
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD09955085
    Molecular Formula:
    C11H10O2
    Molecular Weight:
    174.2
    Specification Sheet SDS

  • 3,4-Ethylenedioxybenzaldehyde

    Purity:
    ≥ 98% (GC)
    Synonym:
    1,4-Benzodioxane-6-carboxaldehyde
    Catalog Number:
    42629
    CAS Number:
    29668-44-8
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00010092
    Molecular Formula:
    C9H8O3
    Molecular Weight:
    164.16
    Specification Sheet SDS

  • 2,3-Dihydrobenzofuran-5-acetic acid

    Purity:
    ≥ 98% (GC)
    Synonym:
    5-Coumaranacetic acid
    Catalog Number:
    42633
    CAS Number:
    69999-16-2
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD01941301
    Molecular Formula:
    C10H10O3
    Molecular Weight:
    178.19
    Specification Sheet SDS

  • 2-Acetyl-7-hydroxybenzofuran

    Purity:
    ≥ 98% (GC)
    Synonym:
    2-Acetyl-7-hydroxycoumarone
    Catalog Number:
    42636
    CAS Number:
    40020-87-9
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00191373
    Molecular Formula:
    C10H8O3
    Molecular Weight:
    176.17
    Specification Sheet SDS

  • 2-(1-Piperazinylcarbonyl)-1,4-benzodioxane hydrochloride

    Hazmat
    Purity:
    ≥ 98% (HPLC)
    Synonym:
    1-[(1,4-Benzodioxan-2-yl)carbonyl]piperazine hydrochloride
    Hazmat
    Catalog Number:
    42630
    CAS Number:
    70918-74-0
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00729051
    Molecular Formula:
    C13H16N2O3·HCl
    Molecular Weight:
    284.74
    Specification Sheet SDS

  • 1,4-Benzodioxane-5-carboxylic acid

    Purity:
    ≥ 98% (GC)
    Synonym:
    2,3-Ethylenedioxybenzoic acid
    Catalog Number:
    42627
    CAS Number:
    4442-53-9
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00239415
    Molecular Formula:
    C9H8O4
    Molecular Weight:
    180.16
    Specification Sheet SDS

  • 5-Amino-2-benzimidazolinone

    Purity:
    ≥ 98% (HPLC)
    Catalog Number:
    42613
    CAS Number:
    95-23-8
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00053555
    Molecular Formula:
    C7H7N3O
    Molecular Weight:
    149.15
    Specification Sheet SDS

  • Ethyl 5-nitrobenzofuran-2-carboxylate

    Purity:
    ≥ 97% (GC)
    Synonym:
    5-Nitrobenzofuran-2-carboxylic acid ethyl ester
    Catalog Number:
    42631
    CAS Number:
    69604-00-8
    Purity Limit:
    ≥ 97% (GC)
    MDL NO:
    MFCD00275272
    Molecular Formula:
    C11H9NO5
    Molecular Weight:
    235.2
    Specification Sheet SDS

  • 1,4-Benzodioxane-2-carboxylic acid

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    42628
    CAS Number:
    3663-80-7
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00084888
    Molecular Formula:
    C9H8O4
    Molecular Weight:
    180.16
    Specification Sheet SDS

  • 2,3-Dihydrobenzofuran-7-carboxylic acid

    Purity:
    ≥ 98% (Assay by titration)
    Synonym:
    7-Coumarancarboxylic acid
    Catalog Number:
    42632
    CAS Number:
    35700-40-4
    Purity Limit:
    ≥ 98% (Assay by titration)
    MDL NO:
    MFCD00671526
    Molecular Formula:
    C9H8O3
    Molecular Weight:
    164.16
    Specification Sheet SDS

  • 2,3-Dihydrobenzofuran

    Purity:
    ≥ 98% (GC)
    Synonym:
    Coumaran
    Catalog Number:
    42637
    CAS Number:
    496-16-2
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00005855
    Molecular Formula:
    C8H8O
    Molecular Weight:
    120.15
    Specification Sheet SDS

  • 2-(2-Pyridyl)benzimidazole

    Purity:
    ≥ 98% (HPLC)
    Catalog Number:
    42619
    CAS Number:
    1137-68-4
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00005586
    Molecular Formula:
    C12H9N3
    Molecular Weight:
    195.23
    Specification Sheet SDS

  • 2-Acetyl-7-methoxybenzofuran

    Purity:
    ≥ 98% (GC)
    Synonym:
    2-Acetyl-7-methoxycoumarone
    Catalog Number:
    42635
    CAS Number:
    43071-52-9
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00016911
    Molecular Formula:
    C11H10O3
    Molecular Weight:
    190.2
    Specification Sheet SDS

  • Ethyl 1,4-benzodioxane-2-carboxylate

    Purity:
    ≥ 98% (GC)
    Synonym:
    1,4-Benzodioxane-2-carboxylic acid ethyl ester
    Catalog Number:
    42625
    CAS Number:
    4739-94-0
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD01099774
    Molecular Formula:
    C11H12O4
    Molecular Weight:
    208.21
    Specification Sheet SDS

  • 2-Mercapto-5-methoxybenzimidazole

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    5-Methoxy-2-benzimidazolethiol
    Catalog Number:
    42603
    CAS Number:
    37052-78-1
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00134581
    Molecular Formula:
    C8H8N2OS
    Molecular Weight:
    180.23
    Specification Sheet SDS

  • Methyl benzimidazole-5-carboxylate

    Purity:
    ≥ 98% (GC)
    Synonym:
    Benzimidazole-5-carboxylic acid methyl ester
    Catalog Number:
    42606
    CAS Number:
    26663-77-4
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD03407310
    Molecular Formula:
    C9H8N2O2
    Molecular Weight:
    176.18
    Specification Sheet SDS

  • 5-Ethoxy-2-mercaptobenzimidazole

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    5-Ethoxy-2-benzimidazolethiol
    Catalog Number:
    42614
    CAS Number:
    55489-15-1
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD01326487
    Molecular Formula:
    C9H10N2OS
    Molecular Weight:
    194.25
    Specification Sheet SDS

  • 2-(4-Pyridyl)benzimidazole

    Purity:
    ≥ 98% (HPLC)
    Catalog Number:
    42609
    CAS Number:
    2208-59-5
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00453948
    Molecular Formula:
    C12H9N3
    Molecular Weight:
    195.23
    Specification Sheet SDS

  • 2-Hydroxymethyl-1,4-benzodioxane

    Purity:
    ≥ 98% (GC)
    Synonym:
    1,4-Benzodioxane-2-methanol
    Catalog Number:
    42623
    CAS Number:
    3663-82-9
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00006822
    Molecular Formula:
    C9H10O3
    Molecular Weight:
    166.18
    Specification Sheet SDS

  • 2-Ethyl-1H-benzimidazole

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    42612
    CAS Number:
    1848-84-6
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00022684
    Molecular Formula:
    C9H10N2
    Molecular Weight:
    146.19
    Specification Sheet SDS

  • 2-(1-Piperazinylcarbonyl)-1,4-benzodioxane

    Purity:
    ≥ 95% (GC)
    Synonym:
    1-[(1,4-Benzodioxan-2-yl)carbonyl]piperazine
    Catalog Number:
    42624
    CAS Number:
    70918-00-2
    Purity Limit:
    ≥ 95% (GC)
    MDL NO:
    MFCD01837119
    Molecular Formula:
    C13H16N2O3
    Molecular Weight:
    248.28
    Specification Sheet SDS

  • 4-(1H-Benzimidazol-2-yl)aniline

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    2-(4-Aminophenyl)benzimidazole
    Catalog Number:
    42617
    CAS Number:
    2963-77-1
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00454395
    Molecular Formula:
    C13H11N3
    Molecular Weight:
    209.25
    Specification Sheet SDS

  • 2-Nonylbenzimidazole

    Purity:
    ≥ 98% (HPLC)
    Catalog Number:
    42600
    CAS Number:
    5851-50-3
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00087614
    Molecular Formula:
    C16H24N2
    Molecular Weight:
    244.38
    Specification Sheet SDS

  • 1,4-Benzodioxane

    Purity:
    ≥ 98% (GC)
    Synonym:
    2,3-Dihydro-1,4-benzodioxine
    Catalog Number:
    42626
    CAS Number:
    493-09-4
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00006821
    Molecular Formula:
    C8H8O2
    Molecular Weight:
    136.15
    Specification Sheet SDS

  • 5-Methylbenzimidazole

    Purity:
    ≥ 98% (GC )
    Catalog Number:
    42586
    CAS Number:
    614-97-1
    Purity Limit:
    ≥ 98% (GC )
    MDL NO:
    MFCD00010740
    Molecular Formula:
    C8H8N2
    Molecular Weight:
    132.17
    Specification Sheet SDS

  • 5-Benzimidazolecarboxylic acid

    Purity:
    ≥ 97% (Assay by titration)
    Synonym:
    5-Carboxybenzimidazole
    Catalog Number:
    42615
    CAS Number:
    15788-16-6
    Purity Limit:
    ≥ 97% (Assay by titration)
    MDL NO:
    MFCD00011555
    Molecular Formula:
    C8H6N2O2
    Molecular Weight:
    162.15
    Specification Sheet SDS

  • 5-Nitrobenzimidazole

    Purity:
    ≥ 98% (HPLC)
    Catalog Number:
    42618
    CAS Number:
    94-52-0
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00005604
    Molecular Formula:
    C7H5N3O2
    Molecular Weight:
    163.14
    Specification Sheet SDS

  • 1,2-Dimethylbenzimidazole

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    42605
    CAS Number:
    2876-08-6
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00022840
    Molecular Formula:
    C9H10N2
    Molecular Weight:
    146.19
    Specification Sheet SDS

  • 5-Amino-2-mercaptobenzimidazole

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    5-Amino-2-benzimidazolethiol
    Catalog Number:
    42620
    CAS Number:
    2818-66-8
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00022671
    Molecular Formula:
    C7H7N3S
    Molecular Weight:
    165.21
    Specification Sheet SDS

  • 2-Phenylbenzimidazole

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    42597
    CAS Number:
    716-79-0
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00005592
    Molecular Formula:
    C13H10N2
    Molecular Weight:
    194.24
    Specification Sheet SDS

  • 1-(1,2,3,6-Tetrahydro-4-pyridyl)-2-benzimidazolinone

    Purity:
    ≥ 97% (HPLC)
    Catalog Number:
    42608
    CAS Number:
    2147-83-3
    Purity Limit:
    ≥ 97% (HPLC)
    MDL NO:
    MFCD00044827
    Molecular Formula:
    C12H13N3O
    Molecular Weight:
    215.26
    Specification Sheet SDS

  • 5-Nitrobenzimidazole nitrate

    Purity:
    ≥ 98% (HPLC)
    Catalog Number:
    42610
    CAS Number:
    27896-84-0
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00013157
    Molecular Formula:
    C7H5N3O2·HNO3
    Molecular Weight:
    226.15
    Specification Sheet SDS

  • 2-Benzylbenzimidazole hydrochloride

    Purity:
    ≥ 98% (HPLC)
    Catalog Number:
    42616
    CAS Number:
    1212-48-2
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00443659
    Molecular Formula:
    C14H12N2·HCl
    Molecular Weight:
    244.72
    Specification Sheet SDS

  • 5-(Acetoacetamido)-2-benzimidazolinone

    Purity:
    ≥ 98% (HPLC)
    Catalog Number:
    42611
    CAS Number:
    26576-46-5
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00444508
    Molecular Formula:
    C11H11N3O3
    Molecular Weight:
    233.23
    Specification Sheet SDS

  • 2-Amino-5-nitrobenzimidazole

    Purity:
    ≥ 98% (HPLC)
    Catalog Number:
    42599
    CAS Number:
    6232-92-4
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD06659794
    Molecular Formula:
    C7H6N4O2
    Molecular Weight:
    178.15
    Specification Sheet SDS

  • 2-Methylbenzimidazole

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    42607
    CAS Number:
    615-15-6
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00005598
    Molecular Formula:
    C8H8N2
    Molecular Weight:
    132.17
    Specification Sheet SDS

  • 2-[1-(tert-Butoxycarbonyl)azetidin-3-yl]acetic acid

    Purity:
    ≥ 98% (GC )
    Synonym:
    2-[1-Boc-azetidin-3-yl]acetic acid
    Catalog Number:
    42583
    CAS Number:
    183062-96-6
    Purity Limit:
    ≥ 98% (GC )
    MDL NO:
    MFCD02179028
    Molecular Formula:
    C10H17NO4
    Molecular Weight:
    215.25
    Specification Sheet SDS

  • 2-Phenyl-5-benzimidazolesulfonic acid

    Purity:
    ≥ 95% (Assay by titration)
    Catalog Number:
    42621
    CAS Number:
    27503-81-7
    Purity Limit:
    ≥ 95% (Assay by titration)
    MDL NO:
    MFCD00053007
    Molecular Formula:
    C13H10N2O3S
    Molecular Weight:
    274.29
    Specification Sheet SDS

  • 2-Mercapto-5-methylbenzimidazole

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    5-Methyl-2-benzimidazolethiol
    Catalog Number:
    42604
    CAS Number:
    27231-36-3
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00010617
    Molecular Formula:
    C8H8N2S
    Molecular Weight:
    164.23
    Specification Sheet SDS

  • 5-Aminobenzimidazole

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    42593
    CAS Number:
    934-22-5
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00465258
    Molecular Formula:
    C7H7N3
    Molecular Weight:
    133.15
    Specification Sheet SDS

  • 1-Methylbenzimidazole

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    42602
    CAS Number:
    1632-83-3
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00192275
    Molecular Formula:
    C8H8N2
    Molecular Weight:
    132.17
    Specification Sheet SDS
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