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Building Blocks

8717
Sub Categories
Fluorinated Building Blocks 1834
Heterocyclic Building Blocks 3772
Non-Heterocyclic Building Blocks 3171

  • 3-Phenylthiophene

    Purity:
    ≥ 95% (GC)
    Catalog Number:
    44259
    Purity Limit:
    ≥ 95% (GC)
    CAS Number:
    2404-87-7
    MDL NO:
    MFCD00114997
    Molecular Formula:
    C10H8S
    Molecular Weight:
    160.23
    Specification Sheet SDS

  • 2-n-Octylthiophene

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44258
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    880-36-4
    MDL NO:
    MFCD00041015
    Molecular Formula:
    C12H20S
    Molecular Weight:
    196.35
    Specification Sheet SDS

  • 2-(2-Thienyl)pyridine

    Purity:
    ≥ 98% (GC)
    Synonym:
    2-(2-Pyridyl)thiophene
    Catalog Number:
    44261
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    3319-99-1
    MDL NO:
    MFCD00044441
    Molecular Formula:
    C9H7NS
    Molecular Weight:
    161.22
    Specification Sheet SDS

  • 2-Phenylthiophene

    Purity:
    ≥ 95% (GC)
    Catalog Number:
    44247
    Purity Limit:
    ≥ 95% (GC)
    CAS Number:
    825-55-8
    MDL NO:
    MFCD00130080
    Molecular Formula:
    C10H8S
    Molecular Weight:
    160.23
    Specification Sheet SDS

  • 2-Ethynylthiophene

    Purity:
    ≥ 96% (GC)
    Synonym:
    (2-Thienyl)acetylene
    Catalog Number:
    44254
    Purity Limit:
    ≥ 96% (GC)
    CAS Number:
    4298-52-6
    MDL NO:
    MFCD03425129
    Molecular Formula:
    C6H4S
    Molecular Weight:
    108.16
    Specification Sheet SDS

  • trans-1,2-Di(2-thienyl)ethylene

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44256
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    13640-78-3
    MDL NO:
    MFCD00145416
    Molecular Formula:
    C10H8S2
    Molecular Weight:
    192.29
    Specification Sheet SDS

  • 2-Propionylthiophene

    Purity:
    ≥ 98% (GC)
    Synonym:
    Ethyl 2-thienyl ketone
    Catalog Number:
    44252
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    13679-75-9
    MDL NO:
    MFCD00005446
    Molecular Formula:
    C7H8OS
    Molecular Weight:
    140.2
    Specification Sheet SDS

  • 2-Cinnamoylthiophene

    Purity:
    ≥ 98% (GC)
    Synonym:
    3-Phenyl-1-(2-thienyl)-2-propen-1-one
    Catalog Number:
    44250
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    3988-77-0
    MDL NO:
    MFCD00059742
    Molecular Formula:
    C13H10OS
    Molecular Weight:
    214.28
    Specification Sheet SDS

  • Tetramethylene sulfoxide

    Purity:
    ≥ 98% (GC)
    Synonym:
    Tetrahydrothiophene 1-oxide
    Catalog Number:
    44239
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    1600-44-8
    MDL NO:
    MFCD00005477
    Molecular Formula:
    C4H8OS
    Molecular Weight:
    104.17
    Specification Sheet SDS

  • 5-Nitro-2-thiophenecarboxylic acid

    Purity:
    ≥ 97% (GC)
    Synonym:
    5-Nitro-2-thenoic acid
    Catalog Number:
    44249
    Purity Limit:
    ≥ 97% (GC)
    CAS Number:
    6317-37-9
    MDL NO:
    MFCD00159552
    Molecular Formula:
    C5H3NO4S
    Molecular Weight:
    173.14
    Specification Sheet SDS

  • 5-Phenylthiophene-2-carboxaldehyde

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44246
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    19163-21-4
    MDL NO:
    MFCD01151752
    Molecular Formula:
    C11H8OS
    Molecular Weight:
    188.24
    Specification Sheet SDS

  • 3-Thiophenemalonic acid

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    3-Thienylmalonic acid
    Catalog Number:
    44242
    Purity Limit:
    ≥ 98% (HPLC)
    CAS Number:
    21080-92-2
    MDL NO:
    MFCD00005469
    Molecular Formula:
    C7H6O4S
    Molecular Weight:
    186.18
    Specification Sheet SDS

  • 3-Propylthiophene

    Hazmat
    Purity:
    ≥ 97% (GC)
    Hazmat
    Catalog Number:
    44248
    Purity Limit:
    ≥ 97% (GC)
    CAS Number:
    1518-75-8
    MDL NO:
    MFCD00143183
    Molecular Formula:
    C7H10S
    Molecular Weight:
    126.22
    Specification Sheet SDS

  • Methyl 2,5-dihydrothiophene-3-carboxylate

    Purity:
    ≥ 95% (GC)
    Synonym:
    2,5-Dihydrothiophene-3-carboxylic acid methyl ester
    Catalog Number:
    44243
    Purity Limit:
    ≥ 95% (GC)
    CAS Number:
    67488-46-4
    MDL NO:
    MFCD04038417
    Molecular Formula:
    C6H8O2S
    Molecular Weight:
    144.19
    Specification Sheet SDS

  • Methyl 2-thiophenecarboxylate

    Purity:
    ≥ 99% (GC)
    Synonym:
    2-Thiophenecarboxylic acid methyl ester
    Catalog Number:
    44245
    Purity Limit:
    ≥ 99% (GC)
    CAS Number:
    5380-42-7
    MDL NO:
    MFCD00016895
    Molecular Formula:
    C6H6O2S
    Molecular Weight:
    142.17
    Specification Sheet SDS

  • Methyl 3-methylthiophene-2-carboxylate

    Purity:
    ≥ 97% (GC)
    Synonym:
    3-Methylthiophene-2-carboxylic acid methyl ester
    Catalog Number:
    44241
    Purity Limit:
    ≥ 97% (GC)
    CAS Number:
    81452-54-2
    MDL NO:
    MFCD00234332
    Molecular Formula:
    C7H8O2S
    Molecular Weight:
    156.2
    Specification Sheet SDS

  • Thiophene

    Hazmat
    Purity:
    ≥ 98% (GC)
    Hazmat
    Catalog Number:
    44244
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    110-02-1
    MDL NO:
    MFCD00005413
    Molecular Formula:
    C4H4S
    Molecular Weight:
    84.14
    Specification Sheet SDS

  • Ethyl 2-amino-5-phenylthiophene-3-carboxylate

    Purity:
    ≥ 98% (GC)
    Synonym:
    2-Amino-5-phenylthiophene-3-carboxylic acid ethyl ester
    Catalog Number:
    44218
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    4815-34-3
    MDL NO:
    MFCD01829801
    Molecular Formula:
    C13H13NO2S
    Molecular Weight:
    247.31
    Specification Sheet SDS

  • Dithieno[3,2-b:2',3'-d]thiophene-2,6-dicarboxaldehyde

    Purity:
    ≥ 92% (GC)
    Catalog Number:
    44223
    Purity Limit:
    ≥ 92% (GC)
    CAS Number:
    67061-73-8
    MDL NO:
    MFCD11215205
    Molecular Formula:
    C10H4O2S3
    Molecular Weight:
    252.32
    Specification Sheet SDS

  • 2,4-Dimethyl-5-phenylthiophene

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44236
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    57021-49-5
    MDL NO:
    MFCD08276354
    Molecular Formula:
    C12H12S
    Molecular Weight:
    188.29
    Specification Sheet SDS

  • 4,6-Dihydrothieno[3,4-b]thiophene-2-carboxylic acid

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44233
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    7712-05-2
    MDL NO:
    MFCD20642620
    Molecular Formula:
    C7H6O2S2
    Molecular Weight:
    186.24
    Specification Sheet SDS

  • 2,3,4,5-Tetraphenylthiophene

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44240
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    1884-68-0
    MDL NO:
    MFCD00014527
    Molecular Formula:
    C28H20S
    Molecular Weight:
    388.53
    Specification Sheet SDS

  • Dibenzothiophene-2-carboxaldehyde

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44235
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    22099-23-6
    MDL NO:
    MFCD02251670
    Molecular Formula:
    C13H8OS
    Molecular Weight:
    212.27
    Specification Sheet SDS

  • 2-(Bromoacetyl)thiophene

    Hazmat
    Purity:
    ≥ 95% (GC)
    Synonym:
    2-Bromo-1-(2-thienyl)ethanone
    Hazmat
    Catalog Number:
    44238
    Purity Limit:
    ≥ 95% (GC)
    CAS Number:
    10531-41-6
    MDL NO:
    MFCD02677721
    Molecular Formula:
    C6H5BrOS
    Molecular Weight:
    205.07
    Specification Sheet SDS

  • 2-Cyanothiophene

    Hazmat
    Purity:
    ≥ 98% (GC)
    Synonym:
    2-Thiophenecarbonitrile
    Hazmat
    Catalog Number:
    44220
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    1003-31-2
    MDL NO:
    MFCD00005416
    Molecular Formula:
    C5H3NS
    Molecular Weight:
    109.15
    Specification Sheet SDS

  • 2-Thiophenecarboxamide

    Purity:
    ≥ 98%
    Catalog Number:
    44228
    Purity Limit:
    ≥ 98%
    CAS Number:
    5813-89-8
    MDL NO:
    MFCD00010425
    Molecular Formula:
    C5H5NOS
    Molecular Weight:
    127.16
    Specification Sheet SDS

  • 3,3,4,4-Tetrachlorosulfolane

    Hazmat
    Purity:
    ≥ 96% (Assay by titration)
    Synonym:
    3,3,4,4-Tetrachlorotetrahydrothiophene 1,1-dioxide
    Hazmat
    Catalog Number:
    44201
    Purity Limit:
    ≥ 96% (Assay by titration)
    CAS Number:
    3737-41-5
    MDL NO:
    MFCD00154882
    Molecular Formula:
    C4H4Cl4O2S
    Molecular Weight:
    257.93
    Specification Sheet SDS

  • 1,4-Di(2-thienyl)-1,3-butadiene (mixture of isomers)

    Purity:
    ≥ 97% (GC)
    Catalog Number:
    44226
    Purity Limit:
    ≥ 97% (GC)
    CAS Number:
    23354-93-0
    MDL NO:
    MFCD00142549
    Molecular Formula:
    C12H10S2
    Molecular Weight:
    218.33
    Specification Sheet SDS

  • 3,3'-Dihexyl-2,2'-bithiophene

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44237
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    125607-30-9
    MDL NO:
    MFCD23380206
    Molecular Formula:
    C20H30S2
    Molecular Weight:
    334.58
    Specification Sheet SDS

  • 3-Dodecylthiophene

    Purity:
    ≥ 98% (GC)
    Synonym:
    3-Laurylthiophene
    Catalog Number:
    44219
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    104934-52-3
    MDL NO:
    MFCD00130121
    Molecular Formula:
    C16H28S
    Molecular Weight:
    252.46
    Specification Sheet SDS

  • Methyl 3-sulfolene-3-carboxylate

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    2,5-Dihydro-3-methoxycarbonylthiophene 1,1-dioxide
    Catalog Number:
    44221
    Purity Limit:
    ≥ 98% (HPLC)
    CAS Number:
    67488-50-0
    MDL NO:
    MFCD00042754
    Molecular Formula:
    C6H8O4S
    Molecular Weight:
    176.19
    Specification Sheet SDS

  • 2-(2-Thienyl)ethyl p-toluenesulfonate

    Purity:
    ≥ 95% (GC)
    Synonym:
    p-Toluenesulfonic acid 2-(2-thienyl)ethyl ester
    Catalog Number:
    44227
    Purity Limit:
    ≥ 95% (GC)
    CAS Number:
    40412-06-4
    MDL NO:
    MFCD05150366
    Molecular Formula:
    C13H14O3S2
    Molecular Weight:
    282.37
    Specification Sheet SDS

  • 3,4'-Dihexyl-2,2'-bithiophene

    Purity:
    ≥ 96% (GC)
    Catalog Number:
    44232
    Purity Limit:
    ≥ 96% (GC)
    CAS Number:
    135926-93-1
    MDL NO:
    MFCD15072161
    Molecular Formula:
    C20H30S2
    Molecular Weight:
    334.58
    Specification Sheet SDS

  • Dithieno[3,2-b:2',3'-d]thiophene

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44213
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    3593-75-7
    MDL NO:
    MFCD06656577
    Molecular Formula:
    C8H4S3
    Molecular Weight:
    196.3
    Specification Sheet SDS

  • Ethyl 3-thiophenecarboxylate

    Purity:
    ≥ 95% (GC)
    Synonym:
    Ethyl 3-thiophenecarboxylate
    Catalog Number:
    44217
    Purity Limit:
    ≥ 95% (GC)
    CAS Number:
    5751-80-4
    MDL NO:
    MFCD02179226
    Molecular Formula:
    C7H8O2S
    Molecular Weight:
    156.2
    Specification Sheet SDS

  • 3-(Cyanomethyl)-2,4,5-trimethylthiophene

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44224
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    112440-49-0
    MDL NO:
    MFCD00143113
    Molecular Formula:
    C9H11NS
    Molecular Weight:
    165.25
    Specification Sheet SDS

  • 3,4-Diaminothiophene dihydrochloride

    Hazmat
    Purity:
    ≥ 98% (HPLC)
    Hazmat
    Catalog Number:
    44231
    Purity Limit:
    ≥ 98% (HPLC)
    CAS Number:
    90069-81-1
    MDL NO:
    MFCD00671511
    Molecular Formula:
    C4H6N2S·2HCl
    Molecular Weight:
    187.08
    Specification Sheet SDS

  • 2-Methoxythiophene

    Hazmat
    Purity:
    ≥ 98% (GC)
    Hazmat
    Catalog Number:
    44215
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    16839-97-7
    MDL NO:
    MFCD00014526
    Molecular Formula:
    C5H6OS
    Molecular Weight:
    114.16
    Specification Sheet SDS

  • Ethyl 2-thiophenecarboxylate

    Purity:
    ≥ 98% (GC)
    Synonym:
    2-Thiophenecarboxylic acid ethyl ester
    Catalog Number:
    44234
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    2810-04-0
    MDL NO:
    MFCD00005436
    Molecular Formula:
    C7H8O2S
    Molecular Weight:
    156.2
    Specification Sheet SDS

  • Thieno[3,2-b]thiophene-2,5-dicarboxaldehyde

    Purity:
    ≥ 93% (GC)
    Catalog Number:
    44230
    Purity Limit:
    ≥ 93% (GC)
    CAS Number:
    37882-75-0
    MDL NO:
    MFCD03931117
    Molecular Formula:
    C8H4O2S2
    Molecular Weight:
    196.24
    Specification Sheet SDS

  • 2-Dodecylthiophene

    Purity:
    ≥ 97% (GC)
    Catalog Number:
    44212
    Purity Limit:
    ≥ 97% (GC)
    CAS Number:
    4861-61-4
    MDL NO:
    MFCD22493346
    Molecular Formula:
    C16H28S
    Molecular Weight:
    252.46
    Specification Sheet SDS

  • 3-Thiophenecarboxaldehyde

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44209
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    498-62-4
    MDL NO:
    MFCD00005466
    Molecular Formula:
    C5H4OS
    Molecular Weight:
    112.15
    Specification Sheet SDS

  • 2-Thiopheneacrylic acid

    Purity:
    ≥ 98% (Assay by titration)
    Synonym:
    3-(2-Thienyl)acrylic acid
    Catalog Number:
    44222
    Purity Limit:
    ≥ 98% (Assay by titration)
    CAS Number:
    15690-25-2
    MDL NO:
    MFCD00005455
    Molecular Formula:
    C7H6O2S
    Molecular Weight:
    154.19
    Specification Sheet SDS

  • 4-Methylthiophene-2-carboxaldehyde

    Purity:
    ≥ 95% (GC)
    Synonym:
    2-Formyl-4-methylthiophene
    Catalog Number:
    44225
    Purity Limit:
    ≥ 95% (GC)
    CAS Number:
    6030-36-0
    MDL NO:
    MFCD00159561
    Molecular Formula:
    C6H6OS
    Molecular Weight:
    126.17
    Specification Sheet SDS

  • 3,4-Thiophenedicarboxaldehyde

    Purity:
    ≥ 98% (GC)
    Synonym:
    3,4-Diformylthiophene
    Catalog Number:
    44208
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    1073-31-0
    MDL NO:
    MFCD09033442
    Molecular Formula:
    C6H4O2S
    Molecular Weight:
    140.16
    Specification Sheet SDS

  • 5-Methylthiophene-2-carboxaldehyde

    Purity:
    ≥ 97% (GC)
    Synonym:
    2-Formyl-5-methylthiophene
    Catalog Number:
    44216
    Purity Limit:
    ≥ 97% (GC)
    CAS Number:
    13679-70-4
    MDL NO:
    MFCD00005434
    Molecular Formula:
    C6H6OS
    Molecular Weight:
    126.17
    Specification Sheet SDS

  • 2-Thiophenecarboxylic acid

    Purity:
    ≥ 98% (Assay by titration)
    Synonym:
    2-Thenoic acid
    Catalog Number:
    44229
    Purity Limit:
    ≥ 98% (Assay by titration)
    CAS Number:
    527-72-0
    MDL NO:
    MFCD00005437
    Molecular Formula:
    C5H4O2S
    Molecular Weight:
    128.15
    Specification Sheet SDS

  • 3-Ethyl 4-methyl 2-aminothiophene-3,4-dicarboxylate

    Purity:
    ≥ 98% (GC)
    Synonym:
    2-Aminothiophene-3,4-dicarboxylic acid 3-ethyl 4-methyl ester
    Catalog Number:
    44214
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    844502-63-2
    MDL NO:
    MFCD11977340
    Molecular Formula:
    C9H11NO4S
    Molecular Weight:
    229.25
    Specification Sheet SDS

  • 3-Thiophenemethanol

    Purity:
    ≥ 96% (GC)
    Synonym:
    3-Hydroxymethylthiophene
    Catalog Number:
    44206
    Purity Limit:
    ≥ 96% (GC)
    CAS Number:
    71637-34-8
    MDL NO:
    MFCD00014534
    Molecular Formula:
    C5H6OS
    Molecular Weight:
    114.16
    Specification Sheet SDS

  • 2,5-Diphenylthiophene

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44211
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    1445-78-9
    MDL NO:
    MFCD00626285
    Molecular Formula:
    C16H12S
    Molecular Weight:
    236.33
    Specification Sheet SDS
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