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Building Blocks

7871
Sub Categories
Fluorinated Building Blocks 1631
Heterocyclic Building Blocks 3724
Non-Heterocyclic Building Blocks 2575

  • Chlormethiazole hydrochloride

    Purity:
    ≥ 98% (Assay by titration, HPLC)
    Synonym:
    5-(2-Chloroethyl)-4-methylthiazole hydrochloride
    Catalog Number:
    37743
    CAS Number:
    6001-74-7
    Purity Limit:
    ≥ 98% (Assay by titration, HPLC)
    MDL NO:
    MFCD00673948
    Molecular Formula:
    C6H8ClNS·HCl
    Molecular Weight:
    198.11
    Specification Sheet SDS

  • Clofibrate

    Purity:
    ≥ 98% (GC)
    Synonym:
    2-(4-Chlorophenoxy)isobutyric acid ethyl ester
    Catalog Number:
    37697
    CAS Number:
    637-07-0
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00000615
    Molecular Formula:
    C12H15ClO3
    Molecular Weight:
    242.7
    Specification Sheet SDS

  • N-(2-Chloroethyl)dibenzylamine hydrochloride

    Synonym:
    Dibenamine hydrochloride
    Catalog Number:
    37693
    CAS Number:
    55-43-6
    MDL NO:
    MFCD00012518
    Molecular Formula:
    C16H18ClN·HCl
    Molecular Weight:
    296.24
    Specification Sheet SDS

  • Diarylpropionitrile

    Purity:
    ≥ 98% (GC)
    Synonym:
    2,3-Bis(4-hydroxyphenyl)propionitrile
    Catalog Number:
    37669
    CAS Number:
    1428-67-7
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD01695412
    Molecular Formula:
    C15H13NO2
    Molecular Weight:
    239.27
    Specification Sheet SDS

  • 1-(2-Bromoisovaleryl)urea

    Purity:
    ≥ 98% (Assay by titration)
    Synonym:
    Bromovalerylurea
    Catalog Number:
    37642
    CAS Number:
    496-67-3
    Purity Limit:
    ≥ 98% (Assay by titration)
    MDL NO:
    MFCD00047873
    Molecular Formula:
    C6H11BrN2O2
    Molecular Weight:
    223.07
    Specification Sheet SDS

  • 1,4-Butanediol dimethanesulfonate

    Hazmat
    Purity:
    ≥ 97% (Assay by titration)
    Synonym:
    Busulfan
    Hazmat
    Catalog Number:
    37638
    CAS Number:
    55-98-1
    Purity Limit:
    ≥ 97% (Assay by titration)
    MDL NO:
    MFCD00007562
    Molecular Formula:
    C6H14O6S2
    Molecular Weight:
    246.29
    Specification Sheet SDS

  • 2-Benzylimidazoline

    Purity:
    ≥ 97% (Assay by titration, GC)
    Synonym:
    Tolazoline
    Catalog Number:
    37653
    CAS Number:
    59-98-3
    Purity Limit:
    ≥ 97% (Assay by titration, GC)
    MDL NO:
    MFCD00005182
    Molecular Formula:
    C10H12N2
    Molecular Weight:
    160.22
    Specification Sheet SDS

  • Avobenzone

    Purity:
    ≥ 98% (GC)
    Synonym:
    1-(4-tert-Butylphenyl)-3-(4-methoxyphenyl)-1,3-propanedione
    Catalog Number:
    37647
    CAS Number:
    70356-09-1
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00210252
    Molecular Formula:
    C20H22O3
    Molecular Weight:
    310.39
    Specification Sheet SDS

  • 5-Bromo-4'-chlorosalicylanilide

    Purity:
    ≥ 98% (Assay by titration)
    Synonym:
    5-Bromo-4'-chloro-2-hydroxybenzanilide
    Catalog Number:
    37637
    CAS Number:
    3679-64-9
    Purity Limit:
    ≥ 98% (Assay by titration)
    MDL NO:
    MFCD00020132
    Molecular Formula:
    C13H9BrClNO2
    Molecular Weight:
    326.57
    Specification Sheet SDS

  • 1-Adamantanamine

    Purity:
    ≥ 98% (GC)
    Synonym:
    1-Aminoadamantane
    Catalog Number:
    37571
    CAS Number:
    768-94-5
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00074732
    Molecular Formula:
    C10H17N
    Molecular Weight:
    151.25
    Specification Sheet SDS

  • Azathioprine

    Purity:
    ≥ 98% (Assay by titration, HPLC)
    Synonym:
    6-(1-Methyl-4-nitroimidazol-5-yl)thiopurine
    Catalog Number:
    37565
    CAS Number:
    446-86-6
    Purity Limit:
    ≥ 98% (Assay by titration, HPLC)
    MDL NO:
    MFCD00069203
    Molecular Formula:
    C9H7N7O2S
    Molecular Weight:
    277.26
    Specification Sheet SDS

  • 2-Acetamido-5-nitrothiazole

    Purity:
    ≥ 98% (Assay by titration, HPLC)
    Catalog Number:
    37558
    CAS Number:
    140-40-9
    Purity Limit:
    ≥ 98% (Assay by titration, HPLC)
    MDL NO:
    MFCD00022438
    Molecular Formula:
    C5H5N3O3S
    Molecular Weight:
    187.17
    Specification Sheet SDS

  • 4-Azidocoumarin

    Purity:
    ≥ 98% (HPLC)
    Catalog Number:
    37495
    CAS Number:
    42373-56-8
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00275630
    Molecular Formula:
    C9H5N3O2
    Molecular Weight:
    187.16
    Specification Sheet SDS

  • 5-Hexyn-1-ol

    Purity:
    ≥ 95% (NMR)
    Catalog Number:
    37481
    CAS Number:
    928-90-5
    Purity Limit:
    ≥ 95% (NMR)
    MDL NO:
    MFCD00002980
    Molecular Formula:
    C6H10O
    Molecular Weight:
    98.15
    Specification Sheet SDS

  • 3,6-Diphenyl-1,2,4,5-tetrazine

    Purity:
    ≥ 98% (NMR)
    Catalog Number:
    37464
    CAS Number:
    6830-78-0
    Purity Limit:
    ≥ 98% (NMR)
    MDL NO:
    MFCD00023646
    Molecular Formula:
    C14H10N4
    Molecular Weight:
    234.26
    Specification Sheet SDS

  • N-(Propargyloxy)phthalimide

    Purity:
    ≥ 98% (GC)
    Synonym:
    N-(2-Propynyloxy)phthalimide
    Catalog Number:
    37479
    CAS Number:
    4616-63-1
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00005890
    Molecular Formula:
    C11H7NO3
    Molecular Weight:
    201.18
    Specification Sheet SDS

  • 2-Hexyl-4-pentynoic acid

    Purity:
    ≥ 95% (Assay by titration)
    Synonym:
    2-Propargyloctanoic acid
    Catalog Number:
    37478
    CAS Number:
    96017-59-3
    Purity Limit:
    ≥ 95% (Assay by titration)
    MDL NO:
    MFCD00946863
    Molecular Formula:
    C11H18O2
    Molecular Weight:
    182.26
    Specification Sheet SDS

  • 4-(2-Propynyloxy)aniline

    Purity:
    ≥ 98% (GC)
    Synonym:
    4-(Propargyloxy)aniline
    Catalog Number:
    37480
    CAS Number:
    26557-78-8
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD12823190
    Molecular Formula:
    C9H9NO
    Molecular Weight:
    147.18
    Specification Sheet SDS

  • N-(3-Azidopropyl)biotinamide

    Purity:
    ≥ 95% (HPLC)
    Catalog Number:
    37485
    CAS Number:
    908007-17-0
    Purity Limit:
    ≥ 95% (HPLC)
    MDL NO:
    MFCD20134144
    Molecular Formula:
    C13H22N6O2S
    Molecular Weight:
    326.42
    Specification Sheet SDS

  • Oxalyl dihydrazide

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Oxalic dihydrazide
    Catalog Number:
    37459
    CAS Number:
    996-98-5
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00007608
    Molecular Formula:
    C2H6N4O2
    Molecular Weight:
    118.1
    Specification Sheet SDS

  • Succinic dihydrazide

    Purity:
    ≥ 97% (HPLC)
    Synonym:
    Butanediohydrazide
    Catalog Number:
    37457
    CAS Number:
    4146-43-4
    Purity Limit:
    ≥ 97% (HPLC)
    MDL NO:
    MFCD00007613
    Molecular Formula:
    C4H10N4O2
    Molecular Weight:
    146.15
    Specification Sheet SDS

  • Tris(dimethylamino)phosphine

    Hazmat
    Purity:
    ≥ 98% (GC)
    Synonym:
    Hexamethylphosphorous triamide
    Hazmat
    Catalog Number:
    37442
    CAS Number:
    1608-26-0
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00008301
    Molecular Formula:
    C6H18N3P
    Molecular Weight:
    163.2
    SDS

  • (±-Limonene, mixture of various terpenes

    Hazmat
    Purity:
    ≥ 96% (GC)
    Synonym:
    p-Mentha-1,8-diene
    Hazmat
    Catalog Number:
    37431
    CAS Number:
    138-86-3
    Purity Limit:
    ≥ 96% (GC)
    MDL NO:
    MFCD00062992
    Molecular Formula:
    C10H16
    Molecular Weight:
    136.23
    Specification Sheet SDS

  • Sodium L-tartrate dibasic dihydrate

    Purity:
    ≥99%
    Synonym:
    Sodium tartrate dihydrate
    Catalog Number:
    37427
    CAS Number:
    6106-24-7
    Purity Limit:
    ≥99%
    MDL NO:
    MFCD00150035
    Molecular Formula:
    (CHOHCOONa)2·2H2O
    Molecular Weight:
    230.08
    SDS

  • 2,4,6-Trichloropyridine

    Purity:
    ≥ 99% (GC)
    Catalog Number:
    37417
    CAS Number:
    16063-69-7
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00971928
    Molecular Formula:
    C5H2Cl3N
    Molecular Weight:
    182.44
    Specification Sheet SDS

  • Diethyl vinylphosphonate

    Purity:
    ≥ 98% (GC)
    Synonym:
    Vinylphosphonic acid diethyl ester
    Catalog Number:
    37409
    CAS Number:
    682-30-4
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00009079
    Molecular Formula:
    C6H13O3P
    Molecular Weight:
    164.14
    Specification Sheet SDS

  • 2,4,6-Tribromoresorcinol

    Purity:
    ≥ 99% (GC)
    Synonym:
    1,3,5-Tribromo-2,4-dihydroxybenzene
    Catalog Number:
    37416
    CAS Number:
    2437-49-2
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00009717
    Molecular Formula:
    C6H3Br3O2
    Molecular Weight:
    346.8
    Specification Sheet SDS

  • Variamine blue B base

    Purity:
    ≥ 98% (Assay by titration)
    Synonym:
    4-Amino-4'-methoxydiphenylamine
    Catalog Number:
    37396
    CAS Number:
    101-64-4
    Purity Limit:
    ≥ 98% (Assay by titration)
    MDL NO:
    MFCD00012989
    Molecular Formula:
    C13H14N2O
    Molecular Weight:
    214.27
    Specification Sheet SDS

  • 2-Nitrophenol sodium salt

    Purity:
    ≥ 99% (Assay by titration, HPLC)
    Synonym:
    Sodium 2-nitrophenol
    Catalog Number:
    37399
    CAS Number:
    824-39-5
    Purity Limit:
    ≥ 99% (Assay by titration, HPLC)
    MDL NO:
    MFCD00065178
    Molecular Formula:
    C6H4NO3Na
    Molecular Weight:
    161.09
    Specification Sheet SDS

  • Variamine blue B

    Purity:
    ≥ 98% (Assay by titration)
    Synonym:
    4-Amino-4'-methoxydiphenylamine hydrochloride
    Catalog Number:
    37397
    CAS Number:
    3566-44-7
    Purity Limit:
    ≥ 98% (Assay by titration)
    MDL NO:
    MFCD00012989
    Molecular Formula:
    C13H14N2O·HCl
    Molecular Weight:
    250.73
    Specification Sheet SDS

  • 5-Isopropyl-2-methylindophenol sodium salt

    Synonym:
    Thymolindophenol sodium salt
    Catalog Number:
    37395
    CAS Number:
    5418-43-9
    MDL NO:
    MFCD00058962
    Molecular Formula:
    C16H16NO2Na
    Molecular Weight:
    277.3
    Specification Sheet SDS

  • 3,3,5,5-Tetramethyl-1-pyrroline N-oxide

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    37377
    CAS Number:
    10135-38-3
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00010542
    Molecular Formula:
    C8H15NO
    Molecular Weight:
    141.21
    Specification Sheet SDS

  • 4-Chloro-2-iodobenzoic acid

    Purity:
    ≥ 98% (NMR)
    Catalog Number:
    37369
    CAS Number:
    13421-13-1
    Purity Limit:
    ≥ 98% (NMR)
    MDL NO:
    MFCD00060676
    Molecular Formula:
    C7H4ClIO2
    Molecular Weight:
    282.46
    Specification Sheet SDS

  • p-Terphenyl (purified by sublimation)

    Purity:
    ≥ 99% (GC)
    Synonym:
    1,4-Diphenylbenzene (purified by sublimation)
    Catalog Number:
    37365
    CAS Number:
    92-94-4
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00003061
    Molecular Formula:
    C18H14
    Molecular Weight:
    230.3
    Specification Sheet SDS

  • 9-Bromo-9-phenylfluorene

    Hazmat
    Purity:
    ≥ 99% (HPLC)
    Hazmat
    Catalog Number:
    37350
    CAS Number:
    55135-66-5
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00075522
    Molecular Formula:
    C19H13Br
    Molecular Weight:
    321.22
    Specification Sheet SDS

  • Benzenesulfonic anhydride

    Hazmat
    Purity:
    ≥ 96% (Assay by titration)
    Hazmat
    Catalog Number:
    37345
    CAS Number:
    512-35-6
    Purity Limit:
    ≥ 96% (Assay by titration)
    MDL NO:
    MFCD00054601
    Molecular Formula:
    C12H10O5S2
    Molecular Weight:
    298.33
    Specification Sheet SDS

  • 2-Mesitylenesulfonyl chloride

    Hazmat
    Purity:
    ≥ 99% (HPLC)
    Synonym:
    2,4,6-Trimethylbenzenesulfonyl chloride
    Hazmat
    Catalog Number:
    37346
    CAS Number:
    773-64-8
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00007434
    Molecular Formula:
    C9H11ClO2S
    Molecular Weight:
    218.7
    Specification Sheet SDS

  • 2-Nitrobenzenesulfonyl chloride

    Hazmat
    Purity:
    ≥ 99% (HPLC)
    Synonym:
    2-Nitrobenzene-1-sulfonyl chloride
    Hazmat
    Catalog Number:
    37347
    CAS Number:
    1694-92-4
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00007430
    Molecular Formula:
    C6H4ClNO4S
    Molecular Weight:
    221.61
    Specification Sheet SDS

  • 1-(tert-Butyldimethylsilyl)imidazole

    Purity:
    ≥ 98% (Assay by titration)
    Synonym:
    TBDMSIM
    Catalog Number:
    37334
    CAS Number:
    54925-64-3
    Purity Limit:
    ≥ 98% (Assay by titration)
    MDL NO:
    MFCD00011682
    Molecular Formula:
    C9H18N2Si
    Molecular Weight:
    182.34
    Specification Sheet SDS

  • 4-(Trimethylsilyl)morpholine

    Hazmat
    Purity:
    ≥ 97% (GC)
    Synonym:
    N-(Trimethylsilyl)morpholine
    Hazmat
    Catalog Number:
    37340
    CAS Number:
    13368-42-8
    Purity Limit:
    ≥ 97% (GC)
    MDL NO:
    MFCD00010098
    Molecular Formula:
    C7H17NOSi
    Molecular Weight:
    159.3
    Specification Sheet SDS

  • 3-(Trimethylsilyl)-2-oxazolidinone

    Purity:
    ≥ 98% (GC)
    Synonym:
    2-Oxo-3-(trimethylsilyl)-1,3-oxazolidine
    Catalog Number:
    37341
    CAS Number:
    43112-38-5
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00010197
    Molecular Formula:
    C6H13NO2Si
    Molecular Weight:
    159.26
    Specification Sheet SDS

  • Benzyl 4-nitrophenyl carbonate

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Carbonic acid benzyl 4-nitrophenyl ester
    Catalog Number:
    37330
    CAS Number:
    13795-24-9
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00007323
    Molecular Formula:
    C14H11NO5
    Molecular Weight:
    273.24
    Specification Sheet SDS

  • Dibenzyl carbonate

    Purity:
    ≥ 99% (GC)
    Synonym:
    Carbonic acid dibenzyl ester
    Catalog Number:
    37331
    CAS Number:
    3459-92-5
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00014436
    Molecular Formula:
    C15H14O3
    Molecular Weight:
    242.27
    Specification Sheet SDS

  • Pentafluorophenyl benzoate

    Purity:
    ≥ 98% (GC)
    Synonym:
    Benzoic acid pentafluorophenyl ester
    Catalog Number:
    37326
    CAS Number:
    1548-84-1
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00483755
    Molecular Formula:
    C13H5F5O2
    Molecular Weight:
    288.17
    Specification Sheet SDS

  • Trichloroacetic anhydride

    Hazmat
    Purity:
    ≥ 98% (GC)
    Synonym:
    Perchloroacetic anhydride
    Hazmat
    Catalog Number:
    37327
    CAS Number:
    4124-31-6
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00000793
    Molecular Formula:
    C4Cl6O3
    Molecular Weight:
    308.76
    Specification Sheet SDS

  • N,N'-Bis(trimethylsilyl)urea

    Purity:
    97 - 103% (Assay)
    Synonym:
    1,3-Bis(trimethylsilyl)urea
    Catalog Number:
    37335
    CAS Number:
    18297-63-7
    Purity Limit:
    97 - 103% (Assay)
    MDL NO:
    MFCD00008260
    Molecular Formula:
    C7H20N2OSi2
    Molecular Weight:
    204.42
    Specification Sheet SDS

  • Tetrabenzyl pyrophosphate

    Hazmat
    Purity:
    ≥ 97% (NMR)
    Synonym:
    Pyrophosphoric acid tetrabenzyl ester
    Hazmat
    Catalog Number:
    37317
    CAS Number:
    990-91-0
    Purity Limit:
    ≥ 97% (NMR)
    MDL NO:
    MFCD00051941
    Molecular Formula:
    C28H28O7P2
    Molecular Weight:
    538.47
    Specification Sheet SDS

  • S,S′-Trimethylene di(p-toluenethiosulfonate)

    Purity:
    ≥ 95% (HPLC)
    Synonym:
    Trimethylene di(thiotosylate)
    Catalog Number:
    37319
    CAS Number:
    3866-79-3
    Purity Limit:
    ≥ 95% (HPLC)
    MDL NO:
    MFCD00014918
    Molecular Formula:
    C17H20O4S4
    Molecular Weight:
    416.61
    Specification Sheet SDS

  • Trimethyl(phenylthio)silane

    Hazmat
    Purity:
    ≥ 97% (GC)
    Synonym:
    (Phenylthio)trimethylsilane
    Hazmat
    Catalog Number:
    37323
    CAS Number:
    4551-15-9
    Purity Limit:
    ≥ 97% (GC)
    MDL NO:
    MFCD00008272
    Molecular Formula:
    C9H14SSi
    Molecular Weight:
    182.36
    Specification Sheet SDS

  • 1,2-Bis(trimethylsiloxy)ethane

    Hazmat
    Purity:
    ≥ 96% (GC)
    Synonym:
    Ethylenedioxybis(trimethylsilane)
    Hazmat
    Catalog Number:
    37320
    CAS Number:
    7381-30-8
    Purity Limit:
    ≥ 96% (GC)
    MDL NO:
    MFCD00009640
    Molecular Formula:
    C8H22O2Si2
    Molecular Weight:
    206.43
    Specification Sheet SDS
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