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Heterocyclic Building Blocks

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  • 3-Benzyloxazolidine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    43308
    CAS Number:
    13657-16-4
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00059028
    Molecular Formula:
    C10H13NO
    Molecular Weight:
    163.22
    Specification Sheet SDS

  • 4,5-Dihydro-2-phenyloxazole

    Purity:
    ≥ 98% (GC)
    Synonym:
    (4,5-Dihydro-2-oxazolyl)benzene
    Catalog Number:
    43317
    CAS Number:
    7127-19-7
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00075541
    Molecular Formula:
    C9H9NO
    Molecular Weight:
    147.18
    Specification Sheet SDS

  • 2-Ethyl-2-oxazoline

    Hazmat
    Purity:
    ≥ 98% (GC)
    Hazmat
    Catalog Number:
    43313
    CAS Number:
    10431-98-8
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00005302
    Molecular Formula:
    C5H9NO
    Molecular Weight:
    99.13
    Specification Sheet SDS

  • 2-Propyl-2-oxazoline

    Hazmat
    Purity:
    ≥ 98% (GC)
    Hazmat
    Catalog Number:
    43309
    CAS Number:
    4694-80-8
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD02684776
    Molecular Formula:
    C6H11NO
    Molecular Weight:
    113.16
    Specification Sheet SDS

  • 6-Methyl-1,3-benzoxazole-2(3H)-thione

    Purity:
    ≥ 98% (GC)
    Synonym:
    6-Methyl-1,3-benzoxazole-2-thiol
    Catalog Number:
    43316
    CAS Number:
    23417-29-0
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00175644
    Molecular Formula:
    C8H7NOS
    Molecular Weight:
    165.21
    Specification Sheet SDS

  • 2-Benzoxazolinone

    Purity:
    ≥ 98% (GC)
    Synonym:
    2-Hydroxybenzoxazole
    Catalog Number:
    43311
    CAS Number:
    59-49-4
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00005716
    Molecular Formula:
    C7H5NO2
    Molecular Weight:
    135.12
    Specification Sheet SDS

  • 2-Isopropyl-2-oxazoline

    Hazmat
    Purity:
    ≥ 97% (GC)
    Hazmat
    Catalog Number:
    43304
    CAS Number:
    10431-99-9
    Purity Limit:
    ≥ 97% (GC)
    MDL NO:
    MFCD08276382
    Molecular Formula:
    C6H11NO
    Molecular Weight:
    113.16
    Specification Sheet SDS

  • 2-Methyl-5-phenylbenzoxazole

    Hazmat
    Purity:
    ≥ 98% (HPLC)
    Hazmat
    Catalog Number:
    43288
    CAS Number:
    61931-68-8
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00005772
    Molecular Formula:
    C14H11NO
    Molecular Weight:
    209.25
    Specification Sheet SDS

  • 2-Methyl-4,5-diphenyloxazole

    Purity:
    ≥ 95% (GC)
    Catalog Number:
    43287
    CAS Number:
    14224-99-8
    Purity Limit:
    ≥ 95% (GC)
    MDL NO:
    MFCD00005307
    Molecular Formula:
    C16H13NO
    Molecular Weight:
    235.29
    Specification Sheet SDS

  • 2-Methylnaphth[2,3-d]oxazole

    Purity:
    ≥ 97% (GC)
    Catalog Number:
    43299
    CAS Number:
    20686-66-2
    Purity Limit:
    ≥ 97% (GC)
    MDL NO:
    MFCD00624597
    Molecular Formula:
    C12H9NO
    Molecular Weight:
    183.21
    Specification Sheet SDS

  • 2-Aminobenzoxazole

    Purity:
    ≥ 98% (HPLC)
    Catalog Number:
    43295
    CAS Number:
    4570-41-6
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00182850
    Molecular Formula:
    C7H6N2O
    Molecular Weight:
    134.14
    Specification Sheet SDS

  • 5-Methylbenzoxazole

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    43298
    CAS Number:
    10531-78-9
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00216938
    Molecular Formula:
    C8H7NO
    Molecular Weight:
    133.15
    Specification Sheet SDS

  • Benzoxazole

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    43291
    CAS Number:
    273-53-0
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00005765
    Molecular Formula:
    C7H5NO
    Molecular Weight:
    119.12
    Specification Sheet SDS

  • 4,4'-Bis(2-benzoxazolyl)stilbene

    Purity:
    ≥ 97% (HPLC)
    Catalog Number:
    43290
    CAS Number:
    1533-45-5
    Purity Limit:
    ≥ 97% (HPLC)
    MDL NO:
    MFCD00022846
    Molecular Formula:
    C28H18N2O2
    Molecular Weight:
    414.46
    Specification Sheet SDS

  • 6-Acetyl-2-benzoxazolinone

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    6-Acetyl-2-benzoxazolone
    Catalog Number:
    43307
    CAS Number:
    54903-09-2
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD01664312
    Molecular Formula:
    C9H7NO3
    Molecular Weight:
    177.16
    Specification Sheet SDS

  • 2-Methylnaphth[1,2-d]oxazole

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    43302
    CAS Number:
    85-15-4
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00051328
    Molecular Formula:
    C12H9NO
    Molecular Weight:
    183.21
    Specification Sheet SDS

  • 2,5-Bis(4-aminophenyl)-1,3,4-oxadiazole

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    BAO
    Catalog Number:
    43276
    CAS Number:
    2425-95-8
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00042667
    Molecular Formula:
    C14H12N4O
    Molecular Weight:
    252.28
    Specification Sheet SDS

  • 2,4-Dimethyloxazole

    Hazmat
    Purity:
    ≥ 98% (GC)
    Hazmat
    Catalog Number:
    43300
    CAS Number:
    7208-05-1
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00234124
    Molecular Formula:
    C5H7NO
    Molecular Weight:
    97.12
    Specification Sheet SDS

  • 4,5-Dicyano-1,3-dithiol-2-one

    Hazmat
    Purity:
    ≥ 98% (GC)
    Synonym:
    2-Oxo-1,3-dithiole-4,5-dicarbonitrile
    Hazmat
    Catalog Number:
    43275
    CAS Number:
    934-31-6
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00224014
    Molecular Formula:
    C5N2OS2
    Molecular Weight:
    168.19
    Specification Sheet SDS

  • 2-Amino-5-phenyl-1,3,4-oxadiazole

    Purity:
    ≥ 97% (GC)
    Catalog Number:
    43279
    CAS Number:
    1612-76-6
    Purity Limit:
    ≥ 97% (GC)
    MDL NO:
    MFCD00126383
    Molecular Formula:
    C8H7N3O
    Molecular Weight:
    161.16
    Specification Sheet SDS

  • Oxazole

    Hazmat
    Purity:
    ≥ 98% (GC)
    Hazmat
    Catalog Number:
    43286
    CAS Number:
    288-42-6
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00009751
    Molecular Formula:
    C3H3NO
    Molecular Weight:
    69.06
    Specification Sheet SDS

  • 1,4-Bis(4,5-dihydro-2-oxazolyl)benzene

    Purity:
    ≥ 98% (GC)
    Synonym:
    2,2'-(1,4-Phenylene)bis(2-oxazoline)
    Catalog Number:
    43293
    CAS Number:
    7426-75-7
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00142545
    Molecular Formula:
    C12H12N2O2
    Molecular Weight:
    216.24
    Specification Sheet SDS

  • 4,5-Diphenyl-2-oxazolethiol

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    4,5-Diphenyl-2-mercaptooxazole
    Catalog Number:
    43289
    CAS Number:
    6670-13-9
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00173660
    Molecular Formula:
    C15H11NOS
    Molecular Weight:
    253.32
    Specification Sheet SDS

  • 5-Phenylbenzoxazole-2-thiol

    Purity:
    ≥ 98% (GC)
    Synonym:
    2-Mercapto-5-phenylbenzoxazole
    Catalog Number:
    43294
    CAS Number:
    17371-99-2
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00022847
    Molecular Formula:
    C13H9NOS
    Molecular Weight:
    227.28
    Specification Sheet SDS

  • 2,4-Diphenyloxazole

    Purity:
    ≥ 99% (GC)
    Catalog Number:
    43292
    CAS Number:
    838-41-5
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00016890
    Molecular Formula:
    C15H11NO
    Molecular Weight:
    221.26
    Specification Sheet SDS

  • 4-Methyloxazole-5-carboxylic acid

    Purity:
    ≥ 98% (Assay by titration)
    Catalog Number:
    43296
    CAS Number:
    2510-32-9
    Purity Limit:
    ≥ 98% (Assay by titration)
    MDL NO:
    MFCD01571070
    Molecular Formula:
    C5H5NO3
    Molecular Weight:
    127.1
    Specification Sheet SDS

  • 2,5-Di(1-naphthyl)-1,3,4-oxadiazole

    Purity:
    ≥ 98% (HPLC)
    Catalog Number:
    43284
    CAS Number:
    905-62-4
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00045582
    Molecular Formula:
    C22H14N2O
    Molecular Weight:
    322.37
    Specification Sheet SDS

  • Tetrahydrothiopyran-4-one 1,1-dioxide

    Purity:
    ≥ 98% (GC)
    Synonym:
    4-Oxothiane 1,1-dioxide
    Catalog Number:
    43266
    CAS Number:
    17396-35-9
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00460698
    Molecular Formula:
    C5H8O3S
    Molecular Weight:
    148.18
    Specification Sheet SDS

  • 2,2'-Carbonylbis(3,5-dioxo-4-methyl-1,2,4-oxadiazolidine)

    Purity:
    ≥ 98% (Assay by titration)
    Catalog Number:
    43280
    CAS Number:
    115491-90-2
    Purity Limit:
    ≥ 98% (Assay by titration)
    MDL NO:
    MFCD00191328
    Molecular Formula:
    C7H6N4O7
    Molecular Weight:
    258.15
    Specification Sheet SDS

  • 4-(N,N-Dimethylaminosulfonyl)-7-amino-2,1,3-benzoxadiazole

    Purity:
    ≥ 98% (HPLC)
    Catalog Number:
    43283
    CAS Number:
    147611-83-4
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD11975430
    Molecular Formula:
    C8H10N4O3S
    Molecular Weight:
    242.25
    Specification Sheet SDS

  • 2-Methylnaphth[2,1-d]oxazole

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    43285
    CAS Number:
    20686-65-1
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00022185
    Molecular Formula:
    C12H9NO
    Molecular Weight:
    183.21
    Specification Sheet SDS

  • 5-(m-Tolyl)-5H-pyrrolo[3,2-c:4,5-c']dipyridine

    Purity:
    ≥ 95% (GC)
    Catalog Number:
    43260
    CAS Number:
    1014403-09-8
    Purity Limit:
    ≥ 95% (GC)
    MDL NO:
    MFCD28976174
    Molecular Formula:
    C17H13N3
    Molecular Weight:
    259.31
    Specification Sheet SDS

  • 3,4-Diaminofurazan

    Purity:
    ≥ 98% (GC)
    Synonym:
    3,4-Diamino-1,2,5-oxadiazole
    Catalog Number:
    43281
    CAS Number:
    17220-38-1
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00138084
    Molecular Formula:
    C2H4N4O
    Molecular Weight:
    100.08
    Specification Sheet SDS

  • Benzofuroxan

    Purity:
    ≥ 98% (GC)
    Synonym:
    Benzofurazan 1-oxide
    Catalog Number:
    43278
    CAS Number:
    480-96-6
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00005807
    Molecular Formula:
    C6H4N2O2
    Molecular Weight:
    136.11
    Specification Sheet SDS

  • 2-(4-Methoxyphenyl)-1,3-dithiane

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    43271
    CAS Number:
    24588-72-5
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD01729781
    Molecular Formula:
    C11H14OS2
    Molecular Weight:
    226.35
    Specification Sheet SDS

  • Dibenzo[b,f][1,4]thiazepin-11(10H)-one

    Purity:
    ≥ 98% (HPLC)
    Catalog Number:
    43274
    CAS Number:
    3159-07-7
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00901197
    Molecular Formula:
    C13H9NOS
    Molecular Weight:
    227.28
    Specification Sheet SDS

  • Ethyl 1,3-dithiane-2-carboxylate

    Hazmat
    Purity:
    ≥ 98% (GC)
    Synonym:
    1,3-Dithiane-2-carboxylic acid ethyl ester
    Hazmat
    Catalog Number:
    43264
    CAS Number:
    20462-00-4
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00006657
    Molecular Formula:
    C7H12O2S2
    Molecular Weight:
    192.29
    Specification Sheet SDS

  • 2,5-Bis(4-diethylaminophenyl)-1,3,4-oxadiazole

    Purity:
    ≥ 98% (Assay by titration)
    Catalog Number:
    43277
    CAS Number:
    1679-98-7
    Purity Limit:
    ≥ 98% (Assay by titration)
    MDL NO:
    MFCD00010070
    Molecular Formula:
    C22H28N4O
    Molecular Weight:
    364.49
    Specification Sheet SDS

  • 3,4-Methylenedioxycinnamic acid

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    3-(1,3-Benzodioxol-5-yl)acrylic acid
    Catalog Number:
    43265
    CAS Number:
    2373-80-0
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00005837
    Molecular Formula:
    C10H8O4
    Molecular Weight:
    192.17
    Specification Sheet SDS

  • 3-Bromo-9H-xanthen-9-one

    Purity:
    ≥ 98% (GC)
    Synonym:
    3-Bromoxanthenone
    Catalog Number:
    43272
    CAS Number:
    500286-36-2
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD20528061
    Molecular Formula:
    C13H7BrO2
    Molecular Weight:
    275.1
    Specification Sheet SDS

  • 6-[[7-(N,N-Dimethylaminosulfonyl)-2,1,3-benzoxadiazol-4-yl]amino]hexanoic acid

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    4-(5-Carboxypentylamino)-7-(N,N-dimethylaminosulfonyl)-2,1,3-benzoxadiazole
    Catalog Number:
    43282
    CAS Number:
    1820741-40-9
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD08276342
    Molecular Formula:
    C14H20N4O5S
    Molecular Weight:
    356.4
    Specification Sheet SDS

  • 9-Methyl-3,4-dihydro-2H-pyrido[1,2-a]pyrimidin-2-one

    Purity:
    ≥ 99% (Assay by titration)
    Synonym:
    Acid captor 9M
    Catalog Number:
    43246
    CAS Number:
    61751-44-8
    Purity Limit:
    ≥ 99% (Assay by titration)
    MDL NO:
    MFCD00059749
    Molecular Formula:
    C9H10N2O
    Molecular Weight:
    162.19
    Specification Sheet SDS

  • 3,6-Dimethyl-1,2,4,5-tetrazine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    43270
    CAS Number:
    1558-23-2
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD09866053
    Molecular Formula:
    C4H6N4
    Molecular Weight:
    110.12
    Specification Sheet SDS

  • Dimethyl 2-(1,3-dithiole)phosphonate

    Purity:
    ≥ 97% (GC)
    Synonym:
    2-(1,3-Dithiole)phosphonic acid dimethyl ester
    Catalog Number:
    43267
    CAS Number:
    133113-76-5
    Purity Limit:
    ≥ 97% (GC)
    MDL NO:
    MFCD20265584
    Molecular Formula:
    C5H9O3PS2
    Molecular Weight:
    212.22
    Specification Sheet SDS

  • 2-Methyl-4-propyl-1,3-oxathiane (cis- and trans- mixture)

    Hazmat
    Purity:
    ≥ 97% (GC)
    Hazmat
    Catalog Number:
    43263
    CAS Number:
    67715-80-4
    Purity Limit:
    ≥ 97% (GC)
    MDL NO:
    MFCD00673203
    Molecular Formula:
    C8H16OS
    Molecular Weight:
    160.28
    Specification Sheet SDS

  • 2-(p-Tolyl)-1,3-dithiane

    Purity:
    ≥ 98% (GC)
    Synonym:
    2-(4-Methylphenyl)-1,3-dithiane
    Catalog Number:
    43269
    CAS Number:
    56637-44-6
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD01729789
    Molecular Formula:
    C11H14S2
    Molecular Weight:
    210.35
    Specification Sheet SDS

  • 2-Phenyl-1,3-dithiolane

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    43268
    CAS Number:
    5616-55-7
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD01729637
    Molecular Formula:
    C9H10S2
    Molecular Weight:
    182.3
    Specification Sheet SDS

  • 2,2,6-Trimethyl-1,3-dioxin-4-one

    Purity:
    ≥ 95% (NMR)
    Synonym:
    2,2,4-Trimethyl-6-keto-1,3-dioxine
    Catalog Number:
    43251
    CAS Number:
    5394-63-8
    Purity Limit:
    ≥ 95% (NMR)
    MDL NO:
    MFCD00040468
    Molecular Formula:
    C7H10O3
    Molecular Weight:
    142.15
    Specification Sheet SDS

  • 1-Aza-2-methoxy-1-cycloheptene

    Hazmat
    Purity:
    ≥ 98% (GC)
    Synonym:
    O-Methylcaprolactim
    Hazmat
    Catalog Number:
    43273
    CAS Number:
    2525-16-8
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00006938
    Molecular Formula:
    C7H13NO
    Molecular Weight:
    127.19
    Specification Sheet SDS

  • Methyl Thieno[3,2-b]thiophene-2-carboxylate

    Purity:
    ≥ 98% (GC)
    Synonym:
    Thieno[3,2-b]thiophene-2-carboxylic acid methyl ester
    Catalog Number:
    43256
    CAS Number:
    98800-10-3
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD01934498
    Molecular Formula:
    C8H6O2S2
    Molecular Weight:
    198.25
    Specification Sheet SDS
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