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Heterocyclic Building Blocks

3723
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  • 5-Bromoisatoic anhydride

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    6-Bromo-1,2-dihydro-4H-3,1-benzoxazine-2,4-dione
    Catalog Number:
    44412
    CAS Number:
    4692-98-2
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00016921
    Molecular Formula:
    C8H4BrNO3
    Molecular Weight:
    242.03
    Specification Sheet SDS

  • 4-Chloroisatoic anhydride

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    7-Chloro-1,2-dihydro-4H-3,1-benzoxazine-2,4-dione
    Catalog Number:
    44411
    CAS Number:
    40928-13-0
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00090431
    Molecular Formula:
    C8H4ClNO3
    Molecular Weight:
    197.57
    Specification Sheet SDS

  • 5-Bromobenzo[b]naphtho[1,2-d]thiophene

    Purity:
    ≥ 97% (GC)
    Catalog Number:
    44407
    CAS Number:
    189097-35-6
    Purity Limit:
    ≥ 97% (GC)
    MDL NO:
    MFCD28100973
    Molecular Formula:
    C16H9BrS
    Molecular Weight:
    313.21
    Specification Sheet SDS

  • 3-Bromobenzo[b]thiophene

    Purity:
    ≥ 96% (GC)
    Catalog Number:
    44405
    CAS Number:
    7342-82-7
    Purity Limit:
    ≥ 96% (GC)
    MDL NO:
    MFCD00023009
    Molecular Formula:
    C8H5BrS
    Molecular Weight:
    213.09
    Specification Sheet SDS

  • 5-(2-Bromoethyl)-2,3-dihydrobenzofuran

    Purity:
    ≥ 98% (GC)
    Synonym:
    5-(2-Bromoethyl)coumaran
    Catalog Number:
    44394
    CAS Number:
    127264-14-6
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD06797641
    Molecular Formula:
    C10H11BrO
    Molecular Weight:
    227.1
    Specification Sheet SDS

  • 4-(1-Naphthyl)-3,5-diphenyl-1,2,4-triazole

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44370
    CAS Number:
    16152-10-6
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD09832971
    Molecular Formula:
    C24H17N3
    Molecular Weight:
    347.42
    Specification Sheet SDS

  • Methyl 1,2,4-triazole-3-carboxylate

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    1,2,4-Triazole-3-carboxylic acid methyl ester
    Catalog Number:
    44371
    CAS Number:
    4928-88-5
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00135989
    Molecular Formula:
    C4H5N3O2
    Molecular Weight:
    127.1
    Specification Sheet SDS

  • 5-Chlorobenzofuran-2-carboxylic acid

    Purity:
    ≥ 98% (GC)
    Synonym:
    5-Chlorocoumarilic acid
    Catalog Number:
    44399
    CAS Number:
    10242-10-1
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00060512
    Molecular Formula:
    C9H5ClO3
    Molecular Weight:
    196.59
    Specification Sheet SDS

  • 1-Bromodibenzothiophene

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44402
    CAS Number:
    65642-94-6
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD18451629
    Molecular Formula:
    C12H7BrS
    Molecular Weight:
    263.15
    Specification Sheet SDS

  • 5,7-Dibromo-2,3-dihydrobenzofuran

    Purity:
    ≥ 97% (GC)
    Synonym:
    5,7-Dibromocoumaran
    Catalog Number:
    44400
    CAS Number:
    123266-59-1
    Purity Limit:
    ≥ 97% (GC)
    MDL NO:
    MFCD00191427
    Molecular Formula:
    C8H6Br2O
    Molecular Weight:
    277.94
    Specification Sheet SDS

  • 2-Amino-6-chloro-3-formylchromone

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    2-Amino-6-chlorochromone-3-carboxaldehyde
    Catalog Number:
    44401
    CAS Number:
    68301-77-9
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00139140
    Molecular Formula:
    C10H6ClNO3
    Molecular Weight:
    223.61
    Specification Sheet SDS

  • 5-Chloro-2-mercaptobenzimidazole

    Purity:
    ≥ 98% (Assay by titration)
    Synonym:
    5-Chloro-2-benzimidazolethiol
    Catalog Number:
    44383
    CAS Number:
    25369-78-2
    Purity Limit:
    ≥ 98% (Assay by titration)
    MDL NO:
    MFCD01658762
    Molecular Formula:
    C7H5ClN2S
    Molecular Weight:
    184.64
    Specification Sheet SDS

  • 5,6-Dichlorobenzimidazole hydrochloride

    Purity:
    ≥ 98% (HPLC)
    Catalog Number:
    44384
    CAS Number:
    1087737-96-9
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD16810292
    Molecular Formula:
    C7H4Cl2N2·HCl
    Molecular Weight:
    223.48
    Specification Sheet SDS

  • 6-Bromobenzimidazole

    Purity:
    ≥ 95% (HPLC)
    Catalog Number:
    44385
    CAS Number:
    4887-88-1
    Purity Limit:
    ≥ 95% (HPLC)
    MDL NO:
    MFCD00460014
    Molecular Formula:
    C7H5BrN2
    Molecular Weight:
    197.04
    Specification Sheet SDS

  • 5-Bromo-2,3-dihydrobenzofuran-7-carboxylic acid

    Purity:
    ≥ 97% (Assay by titration)
    Synonym:
    5-Bromocoumaran-7-carboxylic acid
    Catalog Number:
    44395
    CAS Number:
    41177-72-4
    Purity Limit:
    ≥ 97% (Assay by titration)
    MDL NO:
    MFCD00191391
    Molecular Formula:
    C9H7BrO3
    Molecular Weight:
    243.06
    Specification Sheet SDS

  • 5-Chlorobenzimidazole

    Purity:
    ≥ 99% (HPLC)
    Catalog Number:
    44387
    CAS Number:
    4887-82-5
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00059698
    Molecular Formula:
    C7H5ClN2
    Molecular Weight:
    152.58
    Specification Sheet SDS

  • 2,3-Dibromobenzo[b]thiophene

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44403
    CAS Number:
    6287-82-7
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD06798119
    Molecular Formula:
    C8H4Br2S
    Molecular Weight:
    291.99
    Specification Sheet SDS

  • 2,8-Diiododibenzofuran

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44393
    CAS Number:
    5943-11-3
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00094363
    Molecular Formula:
    C12H6I2O
    Molecular Weight:
    419.99
    Specification Sheet SDS

  • 4-(1,2,4-Triazol-1-ylmethyl)aniline

    Purity:
    ≥ 98% (GC)
    Synonym:
    1-(4-Aminobenzyl)-1,2,4-triazole
    Catalog Number:
    44367
    CAS Number:
    119192-10-8
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00973306
    Molecular Formula:
    C9H10N4
    Molecular Weight:
    174.21
    Specification Sheet SDS

  • 5-Bromo-2,3-dihydrobenzofuran

    Purity:
    ≥ 98% (GC)
    Synonym:
    5-Bromocoumaran
    Catalog Number:
    44398
    CAS Number:
    66826-78-6
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD02677716
    Molecular Formula:
    C8H7BrO
    Molecular Weight:
    199.05
    Specification Sheet SDS

  • 2-Bromobenzimidazole

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44386
    CAS Number:
    54624-57-6
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00160009
    Molecular Formula:
    C7H5BrN2
    Molecular Weight:
    197.04
    Specification Sheet SDS

  • 2-(2-Bromophenyl)-1H-benzimidazole

    Purity:
    ≥ 98% (GC)
    Synonym:
    2-(2-Bromophenyl)-1H-1,3-benzodiazole
    Catalog Number:
    44388
    CAS Number:
    13275-42-8
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00449969
    Molecular Formula:
    C13H9BrN2
    Molecular Weight:
    273.13
    Specification Sheet SDS

  • 5,6-Dichloro-1-ethyl-2-methylbenzimidazole

    Purity:
    ≥ 98% (HPLC)
    Catalog Number:
    44390
    CAS Number:
    3237-62-5
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00022843
    Molecular Formula:
    C10H10Cl2N2
    Molecular Weight:
    229.1
    Specification Sheet SDS

  • 2-(4-Iodophenyl)-1-phenylbenzimidazole

    Purity:
    ≥ 98% (HPLC)
    Catalog Number:
    44389
    CAS Number:
    760212-42-8
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD29089366
    Molecular Formula:
    C19H13IN2
    Molecular Weight:
    396.23
    Specification Sheet SDS

  • 2-Bromomethyl-1,4-benzodioxane

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44392
    CAS Number:
    2164-34-3
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00044831
    Molecular Formula:
    C9H9BrO2
    Molecular Weight:
    229.07
    Specification Sheet SDS

  • 3-Amino-5-methylthio-1H-1,2,4-triazole

    Purity:
    ≥ 97% (GC)
    Catalog Number:
    44365
    CAS Number:
    45534-08-5
    Purity Limit:
    ≥ 97% (GC)
    MDL NO:
    MFCD00005232
    Molecular Formula:
    C3H6N4S
    Molecular Weight:
    130.17
    Specification Sheet SDS

  • 5-Chloro-2-methylbenzimidazole

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44382
    CAS Number:
    2818-69-1
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00014559
    Molecular Formula:
    C8H7ClN2
    Molecular Weight:
    166.61
    Specification Sheet SDS

  • 1-(2-Chloroethyl)-1H-hexahydroazepine hydrochloride

    Purity:
    ≥ 98% (Assay by titration)
    Synonym:
    1-(2-Chloroethyl)hexamethyleneimine hydrochloride
    Catalog Number:
    44377
    CAS Number:
    26487-67-2
    Purity Limit:
    ≥ 98% (Assay by titration)
    MDL NO:
    MFCD00012842
    Molecular Formula:
    C8H16ClN·HCl
    Molecular Weight:
    198.13
    Specification Sheet SDS

  • 1-(tert-Butoxycarbonyl)-3-iodoazetidine

    Purity:
    ≥ 98%
    Synonym:
    1-Boc-3-iodoazetidine
    Catalog Number:
    44381
    CAS Number:
    254454-54-1
    Purity Limit:
    ≥ 98%
    MDL NO:
    MFCD09752821
    Molecular Formula:
    C8H14INO2
    Molecular Weight:
    283.11
    Specification Sheet SDS

  • 5,6-Dichloro-2-methylbenzimidazole

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44391
    CAS Number:
    6478-79-1
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00276973
    Molecular Formula:
    C8H6Cl2N2
    Molecular Weight:
    201.05
    Specification Sheet SDS

  • [3-(Bromomethyl)-1-tosylazetidin-3-yl]methanol

    Purity:
    ≥ 98% (GC)
    Synonym:
    [3-(Bromomethyl)-1-(p-toluenesulfonyl)azetidin-3-yl]methanol
    Catalog Number:
    44380
    CAS Number:
    1041026-55-4
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD18782897
    Molecular Formula:
    C12H16BrNO3S
    Molecular Weight:
    334.23
    SDS

  • 1-(Formamidomethyl)-1H-benzotriazole

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    N-(1H-Benzotriazol-1-ylmethyl)formamide
    Catalog Number:
    44368
    CAS Number:
    87022-36-4
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00134328
    Molecular Formula:
    C8H8N4O
    Molecular Weight:
    176.18
    Specification Sheet SDS

  • 5-Methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid

    Purity:
    ≥ 98% (HPLC)
    Catalog Number:
    44369
    CAS Number:
    956317-36-5
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD18382679
    Molecular Formula:
    C10H9N3O2
    Molecular Weight:
    203.2
    Specification Sheet SDS

  • Urazole

    Purity:
    ≥ 98% (Assay by titration)
    Synonym:
    Bicarbamimide
    Catalog Number:
    44362
    CAS Number:
    3232-84-6
    Purity Limit:
    ≥ 98% (Assay by titration)
    MDL NO:
    MFCD00005225
    Molecular Formula:
    C2H3N3O2
    Molecular Weight:
    101.07
    Specification Sheet SDS

  • 4-Phenylurazole

    Purity:
    ≥ 98% (Assay by titration)
    Synonym:
    4-Phenyl-1,2,4-triazolidine-3,5-dione
    Catalog Number:
    44361
    CAS Number:
    15988-11-1
    Purity Limit:
    ≥ 98% (Assay by titration)
    MDL NO:
    MFCD00005226
    Molecular Formula:
    C8H7N3O2
    Molecular Weight:
    177.16
    Specification Sheet SDS

  • 5-Acetyl-3-chloro-10,11-dihydrodibenzo[b,f]azepine

    Purity:
    ≥ 98% (GC)
    Synonym:
    5-Acetyl-3-chloro-2,2'-iminodibenzyl
    Catalog Number:
    44379
    CAS Number:
    25961-11-9
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD01632170
    Molecular Formula:
    C16H14ClNO
    Molecular Weight:
    271.74
    Specification Sheet SDS

  • 3-Mercapto-1,2,4-triazole

    Purity:
    ≥ 98% (GC)
    Synonym:
    1,2,4-Triazole-3-thiol
    Catalog Number:
    44373
    CAS Number:
    3179-31-5
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00005229
    Molecular Formula:
    C2H3N3S
    Molecular Weight:
    101.13
    Specification Sheet SDS

  • 3-Chloro-10,11-dihydro-5H-dibenzo[b,f]azepine

    Purity:
    ≥ 98% (GC)
    Synonym:
    4-Chloro-2,2'-iminodibenzyl
    Catalog Number:
    44376
    CAS Number:
    32943-25-2
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD01632171
    Molecular Formula:
    C14H12ClN
    Molecular Weight:
    229.71
    Specification Sheet SDS

  • 10,11-Dihydro-5H-dibenzo[b,f]azepine-5-carbonyl chloride

    Hazmat
    Purity:
    ≥ 98% (HPLC)
    Synonym:
    2,2'-Iminodibenzyl-5-carbonyl chloride
    Hazmat
    Catalog Number:
    44378
    CAS Number:
    33948-19-5
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00012314
    Molecular Formula:
    C15H12ClNO
    Molecular Weight:
    257.72
    Specification Sheet SDS

  • 4,4'-Di(1,2,3-triazolyl) disulfide

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    4,4'-Dithiobis(1,2,3-triazole)
    Catalog Number:
    44374
    CAS Number:
    6440-09-1
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD12545960
    Molecular Formula:
    C4H4N6S2
    Molecular Weight:
    200.24
    Specification Sheet SDS

  • 3-Mercapto-4-methyl-4H-1,2,4-triazole

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    4-Methyl-4H-1,2,4-triazole-3-thiol
    Catalog Number:
    44375
    CAS Number:
    24854-43-1
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00010069
    Molecular Formula:
    C3H5N3S
    Molecular Weight:
    115.15
    Specification Sheet SDS

  • 4-(4H-1,2,4-Triazol-4-yl)benzoic acid

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    4-(p-Carboxyphenyl)-1,2,4-triazole
    Catalog Number:
    44360
    CAS Number:
    157069-48-2
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD06654839
    Molecular Formula:
    C9H7N3O2
    Molecular Weight:
    189.17
    Specification Sheet SDS

  • 4-Phenyl-1,2,4-triazoline-3,5-dione

    Purity:
    ≥ 98%
    Synonym:
    PTAD
    Catalog Number:
    44366
    CAS Number:
    4233-33-4
    Purity Limit:
    ≥ 98%
    MDL NO:
    MFCD00003148
    Molecular Formula:
    C8H5N3O2
    Molecular Weight:
    175.15
    Specification Sheet SDS

  • Nitron

    Purity:
    ≥ 98% (Assay by titration)
    Synonym:
    1,4-Diphenyl-endoanilino-dihydrotriazole
    Catalog Number:
    44363
    CAS Number:
    2218-94-2
    Purity Limit:
    ≥ 98% (Assay by titration)
    MDL NO:
    MFCD00005174
    Molecular Formula:
    C20H16N4
    Molecular Weight:
    312.38
    Specification Sheet SDS

  • 1-(4-Nitrobenzyl)-1,2,4-triazole

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44357
    CAS Number:
    119192-09-5
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD03840588
    Molecular Formula:
    C9H8N4O2
    Molecular Weight:
    204.19
    Specification Sheet SDS

  • 1,2,4-Triazole-3-carboxamide

    Purity:
    ≥ 97% (HPLC)
    Catalog Number:
    44372
    CAS Number:
    3641-08-5
    Purity Limit:
    ≥ 97% (HPLC)
    MDL NO:
    MFCD03990481
    Molecular Formula:
    C3H4N4O
    Molecular Weight:
    112.09
    Specification Sheet SDS

  • 3-Methyl-1H-1,2,4-triazole

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44358
    CAS Number:
    7170-01-6
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00233931
    Molecular Formula:
    C3H5N3
    Molecular Weight:
    83.09
    Specification Sheet SDS

  • 3,5-Dimethyl-1,2,4-triazole

    Purity:
    ≥ 95% (GC)
    Catalog Number:
    44364
    CAS Number:
    7343-34-2
    Purity Limit:
    ≥ 95% (GC)
    MDL NO:
    MFCD00656686
    Molecular Formula:
    C4H7N3
    Molecular Weight:
    97.12
    Specification Sheet SDS

  • 1-(4-Hydrazinobenzyl)-1H-1,2,4-triazole dihydrochloride

    Purity:
    ≥ 97% (HPLC)
    Synonym:
    4-[(1,2,4-Triazol-1-yl)methyl]phenylhydrazine dihydrochloride
    Catalog Number:
    44356
    CAS Number:
    212248-62-9
    Purity Limit:
    ≥ 97% (HPLC)
    MDL NO:
    MFCD06795497
    Molecular Formula:
    C9H11N5·2HCl
    Molecular Weight:
    262.14
    Specification Sheet SDS

  • 6-(Dibutylamino)-1,3,5-triazine-2,4-dithiol

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    2-(Dibutylamino)-4,6-dimercapto-1,3,5-triazine
    Catalog Number:
    44350
    CAS Number:
    29529-99-5
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00272594
    Molecular Formula:
    C11H20N4S2
    Molecular Weight:
    272.43
    Specification Sheet SDS
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