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Heterocyclic Building Blocks

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  • Catalog Number:
    44324
    CAS Number:
    91-78-1
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00043590
    Molecular Formula:
    C21H21N3
    Molecular Weight:
    315.42
  • Catalog Number:
    44327
    CAS Number:
    493-77-6
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00006051
    Molecular Formula:
    C21H15N3
    Molecular Weight:
    309.37
  • Potassium oxonate

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Allantoxanic acid potassium salt
    Catalog Number:
    44321
    CAS Number:
    2207-75-2
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00010565
    Molecular Formula:
    C4H2KN3O4
    Molecular Weight:
    195.18
  • Triallyl isocyanurate (stabilized with BHT)

    Purity:
    ≥ 96% (GC)
    Synonym:
    Isocyanuric acid triallyl ester (stabilized with BHT)
    Catalog Number:
    44330
    CAS Number:
    1025-15-6
    Purity Limit:
    ≥ 96% (GC)
    MDL NO:
    MFCD00006554
    Molecular Formula:
    C12H15N3O3
    Molecular Weight:
    249.27
  • Melamine monomer

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    2,4,6-Triamino-1,3,5-triazine monomer
    Catalog Number:
    44329
    CAS Number:
    108-78-1
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00006055
    Molecular Formula:
    C3H6N6
    Molecular Weight:
    126.12
  • Ammelide

    Purity:
    ≥ 98% (Assay by titration)
    Synonym:
    6-Amino-1,3,5-triazine-2,4-diol
    Catalog Number:
    44323
    CAS Number:
    645-93-2
    Purity Limit:
    ≥ 98% (Assay by titration)
    MDL NO:
    MFCD00049046
    Molecular Formula:
    C3H4N4O2
    Molecular Weight:
    128.09
  • 1,3,5-Trimethylhexahydro-1,3,5-triazine

    Hazmat
    Purity:
    ≥ 98% (GC)
    Synonym:
    Hexahydro-1,3,5-trimethyl-1,3,5-triazine
    Hazmat
    Catalog Number:
    44326
    CAS Number:
    108-74-7
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00006057
    Molecular Formula:
    C6H15N3
    Molecular Weight:
    0
  • Bis(2-carboxyethyl) isocyanurate

    Purity:
    ≥ 98% (Assay by titration)
    Synonym:
    Isocyanuric acid bis(2-carboxyethyl) ester
    Catalog Number:
    44319
    CAS Number:
    2904-40-7
    Purity Limit:
    ≥ 98% (Assay by titration)
    MDL NO:
    MFCD04038422
    Molecular Formula:
    C9H11N3O7
    Molecular Weight:
    273.2
  • Diallyl isocyanurate

    Purity:
    ≥ 98% (GC)
    Synonym:
    Isocyanuric acid diallyl ester
    Catalog Number:
    44320
    CAS Number:
    6294-79-7
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00059763
    Molecular Formula:
    C9H11N3O3
    Molecular Weight:
    209.21
  • 3,4-Dihexylthiophene

    Purity:
    ≥ 97% (GC)
    Catalog Number:
    44318
    CAS Number:
    122107-04-4
    Purity Limit:
    ≥ 97% (GC)
    MDL NO:
    MFCD21363049
    Molecular Formula:
    C16H28S
    Molecular Weight:
    252.46
  • Thiophene-2-carbothioamide

    Purity:
    ≥ 99% (HPLC)
    Catalog Number:
    44316
    CAS Number:
    20300-02-1
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00052890
    Molecular Formula:
    C5H5NS2
    Molecular Weight:
    143.22
  • Methyl 4,6-dihydrothieno[3,4-b]thiophene-2-carboxylate

    Purity:
    ≥ 98% (GC)
    Synonym:
    4,6-Dihydrothieno[3,4-b]thiophene-2-carboxylic acid methylester
    Catalog Number:
    44317
    CAS Number:
    7767-60-4
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD15096514
    Molecular Formula:
    C8H8O2S2
    Molecular Weight:
    200.27
  • 2-Decylthiophene

    Purity:
    ≥ 97% (GC)
    Catalog Number:
    44313
    CAS Number:
    24769-39-9
    Purity Limit:
    ≥ 97% (GC)
    MDL NO:
    MFCD00715761
    Molecular Formula:
    C14H24S
    Molecular Weight:
    224.41
  • 3-Methylthiophene-2-carboxaldehyde

    Purity:
    ≥ 85% (GC)
    Synonym:
    2-Formyl-3-methylthiophene
    Catalog Number:
    44315
    CAS Number:
    5834-16-2
    Purity Limit:
    ≥ 85% (GC)
    MDL NO:
    MFCD00005430
    Molecular Formula:
    C6H6OS
    Molecular Weight:
    126.17
  • 4,4'-Dihexyl-2,2'-bithiophene

    Purity:
    ≥ 95% (GC)
    Catalog Number:
    44304
    CAS Number:
    135926-94-2
    Purity Limit:
    ≥ 95% (GC)
    MDL NO:
    MFCD28386097
    Molecular Formula:
    C20H30S2
    Molecular Weight:
    334.58
  • 5-Methylthiophene-2-carbonitrile

    Hazmat
    Purity:
    ≥ 98% (GC)
    Synonym:
    2-Cyano-5-methylthiophene
    Hazmat
    Catalog Number:
    44311
    CAS Number:
    72835-25-7
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD01434334
    Molecular Formula:
    C6H5NS
    Molecular Weight:
    0
  • Methyl 3-(chlorosulfonyl)-2-thiophenecarboxylate

    Hazmat
    Purity:
    ≥ 90% (GC)
    Synonym:
    2-Carbomethoxy-3-thiophenesulfonyl chloride
    Hazmat
    Catalog Number:
    44312
    CAS Number:
    59337-92-7
    Purity Limit:
    ≥ 90% (GC)
    MDL NO:
    MFCD00068160
    Molecular Formula:
    C6H5ClO4S2
    Molecular Weight:
    0
  • Diethyl (thiophen-2-ylmethyl)phosphonate

    Purity:
    ≥ 98% (GC)
    Synonym:
    (Thiophen-2-ylmethyl)phosphonic acid diethyl ester
    Catalog Number:
    44314
    CAS Number:
    2026-42-8
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00128457
    Molecular Formula:
    C9H15O3PS
    Molecular Weight:
    234.25
  • 2,3-Thiophenedicarboxaldehyde

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44307
    CAS Number:
    932-41-2
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00209616
    Molecular Formula:
    C6H4O2S
    Molecular Weight:
    140.16
  • 5-(Methylthio)thiophene-2-carboxaldehyde

    Purity:
    ≥ 98% (GC)
    Synonym:
    2-Formyl-5-(methylthio)thiophene
    Catalog Number:
    44309
    CAS Number:
    24445-35-0
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00173744
    Molecular Formula:
    C6H6OS2
    Molecular Weight:
    158.23
  • 2-Methylthiophene

    Hazmat
    Purity:
    ≥ 97% (GC)
    Hazmat
    Catalog Number:
    44310
    CAS Number:
    554-14-3
    Purity Limit:
    ≥ 97% (GC)
    MDL NO:
    MFCD00005451
    Molecular Formula:
    C5H6S
    Molecular Weight:
    0
  • 3-Decylthiophene

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44306
    CAS Number:
    65016-55-9
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00143180
    Molecular Formula:
    C14H24S
    Molecular Weight:
    224.41
  • Dimethyl 3,4-dihydroxy-2,5-thiophenedicarboxylate

    Purity:
    ≥ 98% (GC)
    Synonym:
    3,4-Dihydroxy-2,5-thiophenedicarboxylic acid dimethyl ester
    Catalog Number:
    44303
    CAS Number:
    58416-04-9
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD01860087
    Molecular Formula:
    C8H8O6S
    Molecular Weight:
    232.21
  • Thieno[3,2-b]thiophene

    Hazmat
    Purity:
    ≥ 98% (GC)
    Hazmat
    Catalog Number:
    44308
    CAS Number:
    251-41-2
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00179479
    Molecular Formula:
    C6H4S2
    Molecular Weight:
    0
  • Di(thiophen-2-yl)methane

    Purity:
    ≥ 90% (GC)
    Synonym:
    2,2'-Methylenebisthiophene
    Catalog Number:
    44293
    CAS Number:
    4341-34-8
    Purity Limit:
    ≥ 90% (GC)
    MDL NO:
    MFCD00041212
    Molecular Formula:
    C9H8S2
    Molecular Weight:
    180.28
  • Thiophene-3-acetic acid

    Purity:
    ≥ 98% (Assay by titration)
    Synonym:
    3-Thienylacetic acid
    Catalog Number:
    44305
    CAS Number:
    6964-21-2
    Purity Limit:
    ≥ 98% (Assay by titration)
    MDL NO:
    MFCD00005473
    Molecular Formula:
    C6H6O2S
    Molecular Weight:
    142.17
  • 3,4-Thiophenedicarboxylic acid

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44299
    CAS Number:
    4282-29-5
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00067079
    Molecular Formula:
    C6H4O4S
    Molecular Weight:
    172.15
  • 2-(2-Thienyl)-1,3-dioxolane

    Purity:
    ≥ 97% (GC)
    Synonym:
    2-(1,3-Dioxolan-2-yl)thiophene
    Catalog Number:
    44298
    CAS Number:
    58268-08-9
    Purity Limit:
    ≥ 97% (GC)
    MDL NO:
    MFCD01924576
    Molecular Formula:
    C7H8O2S
    Molecular Weight:
    156.2
  • 2-(3-Thienyl)pyridine

    Purity:
    ≥ 95% (GC)
    Synonym:
    3-(2-Pyridyl)thiophene
    Catalog Number:
    44300
    CAS Number:
    21298-55-5
    Purity Limit:
    ≥ 95% (GC)
    MDL NO:
    MFCD00006214
    Molecular Formula:
    C9H7NS
    Molecular Weight:
    161.22
  • 2-Thiopheneethanol

    Purity:
    ≥ 98% (GC)
    Synonym:
    2-Thienylethanol
    Catalog Number:
    44291
    CAS Number:
    5402-55-1
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00005462
    Molecular Formula:
    C6H8OS
    Molecular Weight:
    128.19
  • 3-(Dimethylamino)-1-(2-thienyl)-1-propanone hydrochloride

    Purity:
    ≥ 98% (Assay by titration)
    Synonym:
    2-[3-(Dimethylamino)propionyl]thiophene hydrochloride
    Catalog Number:
    44296
    CAS Number:
    5424-47-5
    Purity Limit:
    ≥ 98% (Assay by titration)
    MDL NO:
    MFCD00126349
    Molecular Formula:
    C9H13NOS·HCl
    Molecular Weight:
    219.73
  • Tetrahydrothiophene

    Hazmat
    Purity:
    ≥ 99% (GC)
    Hazmat
    Catalog Number:
    44301
    CAS Number:
    110-01-0
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00005476
    Molecular Formula:
    C4H8S
    Molecular Weight:
    0
  • Tetrahydrothiophene 1,1-dioxide

    Purity:
    ≥ 99% (GC)
    Synonym:
    Sulfolane
    Catalog Number:
    44302
    CAS Number:
    126-33-0
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00005484
    Molecular Formula:
    C4H8O2S
    Molecular Weight:
    120.17
  • 2-Thiophenesulfonyl chloride

    Hazmat
    Purity:
    ≥ 98% (GC)
    Hazmat
    Catalog Number:
    44294
    CAS Number:
    16629-19-9
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00005426
    Molecular Formula:
    C4H3ClO2S2
    Molecular Weight:
    0
  • Thiophene-3-acetonitrile

    Hazmat
    Purity:
    ≥ 98% (GC)
    Hazmat
    Catalog Number:
    44295
    CAS Number:
    13781-53-8
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00005471
    Molecular Formula:
    C6H5NS
    Molecular Weight:
    0
  • Catalog Number:
    44297
    CAS Number:
    21210-90-2
    Purity Limit:
    ≥ 94% (GC)
    MDL NO:
    MFCD11114556
    Molecular Formula:
    C14H8S4
    Molecular Weight:
    304.46
  • 2,3-Dihydrothieno[3,4-b][1,4]dioxin-2-yl)methanol

    Purity:
    ≥ 97% (GC)
    Synonym:
    Hydroxymethyl EDOT
    Catalog Number:
    44290
    CAS Number:
    146796-02-3
    Purity Limit:
    ≥ 97% (GC)
    MDL NO:
    MFCD11045357
    Molecular Formula:
    C7H8O3S
    Molecular Weight:
    172.2
  • Catalog Number:
    44292
    CAS Number:
    42490-26-6
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD28386100
    Molecular Formula:
    C18H12S
    Molecular Weight:
    260.35
  • Methyl 3-amino-2-thiophenecarboxylate

    Purity:
    ≥ 98% (GC)
    Synonym:
    3-Amino-2-thiophenecarboxylic acid methyl ester
    Catalog Number:
    44287
    CAS Number:
    22288-78-4
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00009765
    Molecular Formula:
    C6H7NO2S
    Molecular Weight:
    157.19
  • Ethyl 2-amino-5-methylthiophene-3-carboxylate

    Purity:
    ≥ 98% (GC)
    Synonym:
    2-Amino-5-methylthiophene-3-carboxylic acid ethyl ester
    Catalog Number:
    44288
    CAS Number:
    4815-32-1
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD01922142
    Molecular Formula:
    C8H11NO2S
    Molecular Weight:
    185.24
  • 5-Methyl-2-thiophenecarboxylic acid

    Purity:
    ≥ 98% (GC)
    Synonym:
    5-Methyl-2-thenoic acid
    Catalog Number:
    44289
    CAS Number:
    1918-79-2
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00005439
    Molecular Formula:
    C6H6O2S
    Molecular Weight:
    142.17
  • Cyclopropyl 2-thienyl ketone

    Purity:
    ≥ 96% (GC)
    Catalog Number:
    44284
    CAS Number:
    6193-47-1
    Purity Limit:
    ≥ 96% (GC)
    MDL NO:
    MFCD00005427
    Molecular Formula:
    C8H8OS
    Molecular Weight:
    152.21
  • 2-(4-Methoxybenzoyl)thiophene

    Purity:
    ≥ 98% (GC)
    Synonym:
    4-Methoxyphenyl 2-thienyl ketone
    Catalog Number:
    44266
    CAS Number:
    4160-63-8
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00005440
    Molecular Formula:
    C12H10O2S
    Molecular Weight:
    218.27
  • Methyl 3-hydroxy-2-thiophenecarboxylate

    Purity:
    ≥ 97% (GC)
    Synonym:
    3-Hydroxy-2-thiophenecarboxylic acid methyl ester
    Catalog Number:
    44285
    CAS Number:
    5118-06-9
    Purity Limit:
    ≥ 97% (GC)
    MDL NO:
    MFCD00055642
    Molecular Formula:
    C6H6O3S
    Molecular Weight:
    158.17
  • 3-Ethynylthiophene

    Hazmat
    Purity:
    ≥ 97% (GC)
    Synonym:
    3-Thienylacetylene
    Hazmat
    Catalog Number:
    44281
    CAS Number:
    67237-53-0
    Purity Limit:
    ≥ 97% (GC)
    MDL NO:
    MFCD04039973
    Molecular Formula:
    C6H4S
    Molecular Weight:
    0
  • 2-Aminothiophene-3-carboxamide

    Hazmat
    Purity:
    ≥ 98% (GC)
    Hazmat
    Catalog Number:
    44286
    CAS Number:
    14080-51-4
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00706455
    Molecular Formula:
    C5H6N2OS
    Molecular Weight:
    0
  • 1,3,5-Tri(2-thienyl)benzene

    Hazmat
    Purity:
    ≥ 98% (GC)
    Hazmat
    Catalog Number:
    44282
    CAS Number:
    15509-95-2
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD02323391
    Molecular Formula:
    C18H12S3
    Molecular Weight:
    0
  • 1,5-Diphenyl-3-(2-thienyl)formazan

    Purity:
    ≥ 96% (HPLC)
    Synonym:
    STC Formazan
    Catalog Number:
    44278
    CAS Number:
    135984-01-9
    Purity Limit:
    ≥ 96% (HPLC)
    MDL NO:
    MFCD00059744
    Molecular Formula:
    C17H14N4S
    Molecular Weight:
    306.39
  • 2-(3-Thienyl)-1,3-dioxolane

    Purity:
    ≥ 97% (GC)
    Synonym:
    3-(1,3-Dioxolan-2-yl)thiophene
    Catalog Number:
    44283
    CAS Number:
    13250-82-3
    Purity Limit:
    ≥ 97% (GC)
    MDL NO:
    MFCD06209359
    Molecular Formula:
    C7H8O2S
    Molecular Weight:
    156.2
  • 5-Formyl-2-thiophenecarboxylic acid

    Purity:
    ≥ 98% (GC)
    Synonym:
    5-Formylthenoic acid
    Catalog Number:
    44276
    CAS Number:
    4565-31-5
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00191437
    Molecular Formula:
    C6H4O3S
    Molecular Weight:
    156.16