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Building Blocks

7868
Sub Categories
Fluorinated Building Blocks 1630
Heterocyclic Building Blocks 3724
Non-Heterocyclic Building Blocks 2573

  • 5-Amino-2-methylindole

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    43001
    CAS Number:
    7570-49-2
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD02093426
    Molecular Formula:
    C9H10N2
    Molecular Weight:
    146.19
    Specification Sheet SDS

  • 2-(4-Methoxyphenyl)indole

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    42997
    CAS Number:
    5784-95-2
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00443483
    Molecular Formula:
    C15H13NO
    Molecular Weight:
    223.28
    Specification Sheet SDS

  • 1,2-Dimethyl-3H-benzo[e]indole

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    42998
    CAS Number:
    55970-05-3
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00850046
    Molecular Formula:
    C14H13N
    Molecular Weight:
    195.27
    Specification Sheet SDS

  • N,N,N',N''-Tetraacetylglycoluril

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    N,N,N',N''-Tetraacetylacetyleneurea
    Catalog Number:
    42978
    CAS Number:
    10543-60-9
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00022618
    Molecular Formula:
    C12H14N4O6
    Molecular Weight:
    310.27
    Specification Sheet SDS

  • 5-Nitroindazole

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    42989
    CAS Number:
    5401-94-5
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00005693
    Molecular Formula:
    C7H5N3O2
    Molecular Weight:
    163.14
    Specification Sheet SDS

  • 2,3,3-Trimethyl-3H-benzo[g]indole

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    2,3,3-Trimethylnaphtho[1,2-b]pyrrole
    Catalog Number:
    42999
    CAS Number:
    74470-85-2
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00723378
    Molecular Formula:
    C15H15N
    Molecular Weight:
    209.29
    Specification Sheet SDS

  • 5-Hydroxy-1H-indazole

    Purity:
    ≥ 98% (GC)
    Synonym:
    1H-Indazol-5-ol
    Catalog Number:
    42992
    CAS Number:
    15579-15-4
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD01938124
    Molecular Formula:
    C7H6N2O
    Molecular Weight:
    134.14
    Specification Sheet SDS

  • 5-Methoxyisatin

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    5-Methoxyindole-2,3-dione
    Catalog Number:
    42994
    CAS Number:
    39755-95-8
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00169023
    Molecular Formula:
    C9H7NO3
    Molecular Weight:
    177.16
    Specification Sheet SDS

  • 1-Acetyl-2-imidazolidinone

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    42981
    CAS Number:
    5391-39-9
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00988254
    Molecular Formula:
    C5H8N2O2
    Molecular Weight:
    128.13
    Specification Sheet SDS

  • 5-Ethylhydantoin

    Purity:
    ≥ 92% (Assay by titration)
    Catalog Number:
    42983
    CAS Number:
    15414-82-1
    Purity Limit:
    ≥ 92% (Assay by titration)
    MDL NO:
    MFCD00059161
    Molecular Formula:
    C5H8N2O2
    Molecular Weight:
    128.13
    Specification Sheet SDS

  • Imidazo[1,5-a]pyridine-3-carboxaldehyde

    Purity:
    ≥ 98% (Assay by titration)
    Synonym:
    3-Formylimidazo[1,5-a]pyridine
    Catalog Number:
    42986
    CAS Number:
    56671-66-0
    Purity Limit:
    ≥ 98% (Assay by titration)
    MDL NO:
    MFCD08752619
    Molecular Formula:
    C8H6N2O
    Molecular Weight:
    146.15
    Specification Sheet SDS

  • 3-Phenylimidazo[1,5-a]pyridine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    42988
    CAS Number:
    35854-46-7
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00208500
    Molecular Formula:
    C13H10N2
    Molecular Weight:
    194.24
    Specification Sheet SDS

  • Imidazo[1,2-a]pyridine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    42987
    CAS Number:
    274-76-0
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00005553
    Molecular Formula:
    C7H6N2
    Molecular Weight:
    118.14
    Specification Sheet SDS

  • 3-Methanesulfonyl-2-oxo-1-imidazolidinecarbonyl chloride

    Hazmat
    Purity:
    ≥ 98% (Assay by titration)
    Synonym:
    1-Chlorocarbonyl-3-methanesulfonyl-2-imidazolidinone
    Hazmat
    Catalog Number:
    42976
    CAS Number:
    41762-76-9
    Purity Limit:
    ≥ 98% (Assay by titration)
    MDL NO:
    MFCD00272360
    Molecular Formula:
    C5H7ClN2O4S
    Molecular Weight:
    226.63
    Specification Sheet SDS

  • Indazole

    Purity:
    ≥ 98% (NMR)
    Synonym:
    1,2-Benzodiazole
    Catalog Number:
    42990
    CAS Number:
    271-44-3
    Purity Limit:
    ≥ 98% (NMR)
    MDL NO:
    MFCD00005691
    Molecular Formula:
    C7H6N2
    Molecular Weight:
    118.14
    Specification Sheet SDS

  • Phenylthiohydantoin-alanine

    Hazmat
    Purity:
    ≥ 98% (HPLC)
    Synonym:
    5-Methyl-3-phenyl-2-thiohydantoin
    Hazmat
    Catalog Number:
    42980
    CAS Number:
    4333-19-1
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD06858229
    Molecular Formula:
    C10H10N2OS
    Molecular Weight:
    206.26
    Specification Sheet SDS

  • 1-Methanesulfonyl-2-imidazolidinone

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    42982
    CAS Number:
    41730-79-4
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD07787278
    Molecular Formula:
    C4H8N2O3S
    Molecular Weight:
    164.18
    Specification Sheet SDS

  • 1-(Hydroxymethyl)-5,5-dimethylhydantoin

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    1-Methylol-5,5-dimethylhydantoin
    Catalog Number:
    42985
    CAS Number:
    116-25-6
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00020866
    Molecular Formula:
    C6H10N2O3
    Molecular Weight:
    158.16
    Specification Sheet SDS

  • 2-Ethyl-2-imidazoline

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    42977
    CAS Number:
    930-52-9
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00242607
    Molecular Formula:
    C5H10N2
    Molecular Weight:
    98.15
    Specification Sheet SDS

  • 2-Hydrazino-2-imidazoline hydrobromide

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    2-Hydrazino-4,5-dihydroimidazole hydrobromide
    Catalog Number:
    42984
    CAS Number:
    55959-84-7
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00012694
    Molecular Formula:
    C3H8N4·HBr
    Molecular Weight:
    181.04
    Specification Sheet SDS

  • 2-Nitroamino-2-imidazoline

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    2-(Nitroimino)imidazolidine
    Catalog Number:
    42974
    CAS Number:
    5465-96-3
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00047040
    Molecular Formula:
    C3H6N4O2
    Molecular Weight:
    130.11
    Specification Sheet SDS

  • 1-Dodecylhydantoin

    Purity:
    ≥ 98% (GC)
    Synonym:
    1-Laurylhydantoin
    Catalog Number:
    42969
    CAS Number:
    85391-28-2
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00142675
    Molecular Formula:
    C15H28N2O2
    Molecular Weight:
    268.4
    Specification Sheet SDS

  • 5-(4-Hydroxyphenyl)hydantoin

    Purity:
    ≥ 98%
    Catalog Number:
    42971
    CAS Number:
    2420-17-9
    Purity Limit:
    ≥ 98%
    MDL NO:
    MFCD00044002
    Molecular Formula:
    C9H8N2O3
    Molecular Weight:
    192.17
    Specification Sheet SDS

  • 2-Propyl-2-imidazoline

    Purity:
    ≥ 96% (GC)
    Catalog Number:
    42965
    CAS Number:
    15450-05-2
    Purity Limit:
    ≥ 96% (GC)
    MDL NO:
    MFCD00191487
    Molecular Formula:
    C6H12N2
    Molecular Weight:
    112.18
    Specification Sheet SDS

  • Parabanic acid

    Purity:
    ≥ 98% (Assay by titration)
    Synonym:
    N,N-Oxalylurea
    Catalog Number:
    42972
    CAS Number:
    120-89-8
    Purity Limit:
    ≥ 98% (Assay by titration)
    MDL NO:
    MFCD00014493
    Molecular Formula:
    C3H2N2O3
    Molecular Weight:
    114.06
    Specification Sheet SDS

  • cis-1,3-Dibenzyl-2-oxo-4,5-imidazolidinedicarboxylic acid

    Purity:
    ≥ 98% (Assay by titration)
    Catalog Number:
    42975
    CAS Number:
    51591-75-4
    Purity Limit:
    ≥ 98% (Assay by titration)
    MDL NO:
    MFCD07787509
    Molecular Formula:
    C19H18N2O5
    Molecular Weight:
    354.36
    Specification Sheet SDS

  • 4,4'-Di(1H-imidazol-1-yl)-1,1'-biphenyl

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    1,1'-(4,4'-Biphenyldiyl)bis(1H-imidazole)
    Catalog Number:
    42961
    CAS Number:
    855766-92-6
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD23103195
    Molecular Formula:
    C18H14N4
    Molecular Weight:
    286.34
    Specification Sheet SDS

  • 2-Phenylimidazoline

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    42966
    CAS Number:
    936-49-2
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00005180
    Molecular Formula:
    C9H10N2
    Molecular Weight:
    146.19
    Specification Sheet SDS

  • 1-Hexadecylhydantoin

    Purity:
    ≥ 98% (GC)
    Synonym:
    1-Cetylhydantoin
    Catalog Number:
    42973
    CAS Number:
    85117-82-4
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00142677
    Molecular Formula:
    C19H36N2O2
    Molecular Weight:
    324.51
    Specification Sheet SDS

  • 1-Allylhydantoin

    Purity:
    ≥ 98% (Assay by titration)
    Catalog Number:
    42967
    CAS Number:
    3366-93-6
    Purity Limit:
    ≥ 98% (Assay by titration)
    MDL NO:
    MFCD00142580
    Molecular Formula:
    C6H8N2O2
    Molecular Weight:
    140.14
    Specification Sheet SDS

  • 5-Methylhydantoin

    Purity:
    ≥ 98% (Assay by titration)
    Catalog Number:
    42968
    CAS Number:
    616-03-5
    Purity Limit:
    ≥ 98% (Assay by titration)
    MDL NO:
    MFCD00022398
    Molecular Formula:
    C4H6N2O2
    Molecular Weight:
    114.1
    Specification Sheet SDS

  • 2-Phenylimidazole

    Purity:
    ≥ 99% (GC)
    Catalog Number:
    42960
    CAS Number:
    670-96-2
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00005186
    Molecular Formula:
    C9H8N2
    Molecular Weight:
    144.18
    Specification Sheet SDS

  • 5-Propylhydantoin

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    42964
    CAS Number:
    18227-41-3
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00059721
    Molecular Formula:
    C6H10N2O2
    Molecular Weight:
    142.16
    Specification Sheet SDS

  • 2-Undecylimidazoline

    Purity:
    ≥ 90% (GC)
    Catalog Number:
    42970
    CAS Number:
    10443-61-5
    Purity Limit:
    ≥ 90% (GC)
    MDL NO:
    MFCD00070626
    Molecular Formula:
    C14H28N2
    Molecular Weight:
    224.39
    Specification Sheet SDS

  • Dimethyl 1H-imidazole-4,5-dicarboxylate

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    1H-Imidazole-4,5-dicarboxylic acid dimethyl ester
    Catalog Number:
    42947
    CAS Number:
    3304-70-9
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00051338
    Molecular Formula:
    C7H8N2O4
    Molecular Weight:
    184.15
    Specification Sheet SDS

  • Imidazole-4,5-dicarboxamide

    Purity:
    ≥ 97% (Assay by titration)
    Synonym:
    Glycalbylamide
    Catalog Number:
    42955
    CAS Number:
    83-39-6
    Purity Limit:
    ≥ 97% (Assay by titration)
    MDL NO:
    MFCD00047022
    Molecular Formula:
    C5H6N4O2
    Molecular Weight:
    154.13
    Specification Sheet SDS

  • 5-Cyano-1H-imidazole-4-carboxamide

    Hazmat
    Purity:
    ≥ 95% (HPLC)
    Hazmat
    Catalog Number:
    42959
    CAS Number:
    5372-23-6
    Purity Limit:
    ≥ 95% (HPLC)
    MDL NO:
    MFCD04038014
    Molecular Formula:
    C5H4N4O
    Molecular Weight:
    136.11
    Specification Sheet SDS

  • 1-Benzyl-2-methylimidazole

    Purity:
    ≥ 90% (GC)
    Catalog Number:
    42954
    CAS Number:
    13750-62-4
    Purity Limit:
    ≥ 90% (GC)
    MDL NO:
    MFCD00010637
    Molecular Formula:
    C11H12N2
    Molecular Weight:
    172.23
    Specification Sheet SDS

  • 2-Methyl-4(5)-nitroimidazole

    Purity:
    ≥ 99% (Assay by titration)
    Catalog Number:
    42946
    CAS Number:
    696-23-1
    Purity Limit:
    ≥ 99% (Assay by titration)
    MDL NO:
    MFCD00005191
    Molecular Formula:
    C4H5N3O2
    Molecular Weight:
    127.1
    Specification Sheet SDS

  • 1-tert-Butylimidazole

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    42951
    CAS Number:
    45676-04-8
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD19441219
    Molecular Formula:
    C7H12N2
    Molecular Weight:
    124.19
    Specification Sheet SDS

  • Ethyl 2-imidazolecarboxylate

    Purity:
    ≥ 98% (GC)
    Synonym:
    2-Imidazolecarboxylic acid ethyl ester
    Catalog Number:
    42953
    CAS Number:
    33543-78-1
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD03426031
    Molecular Formula:
    C6H8N2O2
    Molecular Weight:
    140.14
    Specification Sheet SDS

  • 4,5-Bis(hydroxymethyl)-2-phenylimidazole

    Purity:
    ≥ 95% (HPLC)
    Catalog Number:
    42956
    CAS Number:
    61698-32-6
    Purity Limit:
    ≥ 95% (HPLC)
    MDL NO:
    MFCD00047017
    Molecular Formula:
    C11H12N2O2
    Molecular Weight:
    204.23
    Specification Sheet SDS

  • 5-[2-(Methylthio)ethyl]hydantoin

    Purity:
    ≥ 99% (GC)
    Catalog Number:
    42962
    CAS Number:
    13253-44-6
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00143392
    Molecular Formula:
    C6H10N2O2S
    Molecular Weight:
    174.22
    Specification Sheet SDS

  • 2-(tert-Butyldimethylsilyl)-N,N-dimethyl-1H-imidazole-1-sulfonamide

    Purity:
    ≥ 97% (GC)
    Synonym:
    1-(Dimethylsulfamoyl)-2-(tert-butyldimethylsilyl)-1H-imidazole
    Catalog Number:
    42952
    CAS Number:
    129378-52-5
    Purity Limit:
    ≥ 97% (GC)
    MDL NO:
    MFCD12963638
    Molecular Formula:
    C11H23N3O2SSi
    Molecular Weight:
    289.47
    Specification Sheet SDS

  • 1-(10-Hydroxydecyl)imidazole

    Purity:
    ≥ 95% (GC)
    Catalog Number:
    42957
    CAS Number:
    186788-38-5
    Purity Limit:
    ≥ 95% (GC)
    MDL NO:
    MFCD10000961
    Molecular Formula:
    C13H24N2O
    Molecular Weight:
    224.35
    Specification Sheet SDS

  • Ethyl 4-imidazolecarboxylate

    Purity:
    ≥ 98% (GC)
    Synonym:
    4-Imidazolecarboxylic acid ethyl ester
    Catalog Number:
    42943
    CAS Number:
    23785-21-9
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD07363812
    Molecular Formula:
    C6H8N2O2
    Molecular Weight:
    140.14
    Specification Sheet SDS

  • 4-Nitroimidazole

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    42950
    CAS Number:
    3034-38-6
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00005196
    Molecular Formula:
    C3H3N3O2
    Molecular Weight:
    113.08
    Specification Sheet SDS

  • 1-(3-Aminopropyl)imidazole

    Hazmat
    Purity:
    ≥ 97% (GC)
    Hazmat
    Catalog Number:
    42948
    CAS Number:
    5036-48-6
    Purity Limit:
    ≥ 97% (GC)
    MDL NO:
    MFCD00009819
    Molecular Formula:
    C6H11N3
    Molecular Weight:
    125.18
    Specification Sheet SDS

  • 1-Phenethylimidazole

    Purity:
    ≥ 98% (GC)
    Synonym:
    1-(Phenylethyl)imidazole
    Catalog Number:
    42942
    CAS Number:
    49823-14-5
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD11977663
    Molecular Formula:
    C11H12N2
    Molecular Weight:
    172.23
    Specification Sheet SDS

  • 4(5)-Ethylimidazole

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    42939
    CAS Number:
    19141-85-6
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00818234
    Molecular Formula:
    C5H8N2
    Molecular Weight:
    96.13
    Specification Sheet SDS
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