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Heterocyclic Building Blocks

3724

  • 5-Phenyl-1,3,4-thiadiazol-2-amine

    Purity:
    ≥ 96% (HPLC)
    Catalog Number:
    24685
    CAS Number:
    2002-03-1
    Purity Limit:
    ≥ 96% (HPLC)
    MDL NO:
    MFCD00205278
    Molecular Formula:
    C8H7N3S
    Molecular Weight:
    177.23
    Specification Sheet SDS

  • 6-Chloro-3-formylchromone

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    6-Chloro-4-oxo-4H-chromene-3-carbaldehyde
    Catalog Number:
    24675
    CAS Number:
    42248-31-7
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00139138
    Molecular Formula:
    C10H5ClO3
    Molecular Weight:
    208.6
    Specification Sheet SDS

  • 6-Chloroflavone

    Purity:
    ≥ 97% (HPLC)
    Synonym:
    6-Chloro-2-phenyl-4H-chromen-4-one
    Catalog Number:
    24686
    CAS Number:
    10420-73-2
    Purity Limit:
    ≥ 97% (HPLC)
    MDL NO:
    MFCD00209560
    Molecular Formula:
    C15H9ClO2
    Molecular Weight:
    256.69
    Specification Sheet SDS

  • 4-Hydroxy-3-nitrocoumarin

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    4-Hydroxy-3-nitro-2H-chromen-2-one
    Catalog Number:
    24665
    CAS Number:
    20261-31-8
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00051671
    Molecular Formula:
    C9H5NO5
    Molecular Weight:
    207.14
    Specification Sheet SDS

  • 6-Chloro-7-methyl-3-formylchromone

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    6-Chloro-7-methyl-4-oxo-4H-1-benzopyran-3-carboxaldehyde
    Catalog Number:
    24680
    CAS Number:
    64481-12-5
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00191919
    Molecular Formula:
    C11H7ClO3
    Molecular Weight:
    222.63
    Specification Sheet SDS

  • 3-Phenylpyrazole

    Purity:
    ≥ 97% (HPLC)
    Synonym:
    3-Phenyl-1H-pyrazole
    Catalog Number:
    24677
    CAS Number:
    2458-26-6
    Purity Limit:
    ≥ 97% (HPLC)
    MDL NO:
    MFCD00159654
    Molecular Formula:
    C9H8N2
    Molecular Weight:
    144.18
    Specification Sheet SDS

  • 4-Aza-3-chromanone

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    2H-1,4-Benzoxazine-3(4H-one
    Catalog Number:
    24676
    CAS Number:
    5466-88-6
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00158536
    Molecular Formula:
    C8H7NO2
    Molecular Weight:
    149.15
    Specification Sheet SDS

  • 2-Amino-3-formylchromone

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    2-Amino-4-oxo-4H-1-benzopyran-3-carboxaldehyde
    Catalog Number:
    24679
    CAS Number:
    61424-76-8
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00191735
    Molecular Formula:
    C10H7N O3
    Molecular Weight:
    189.17
    Specification Sheet SDS

  • 2-(4-Bromophenyl)-5-phenyl-1,3,4-oxadiazole

    Purity:
    ≥ 97% (HPLC)
    Catalog Number:
    24663
    CAS Number:
    21510-43-0
    Purity Limit:
    ≥ 97% (HPLC)
    MDL NO:
    MFCD00050997
    Molecular Formula:
    C14H9BrN2O
    Molecular Weight:
    301.14
    Specification Sheet SDS

  • 6-Bromo-1,4-benzodioxane

    Purity:
    ≥ 97% (GC)
    Synonym:
    4-Bromo-1,2-ethylenedioxybenzene
    Catalog Number:
    24662
    CAS Number:
    52287-51-1
    Purity Limit:
    ≥ 97% (GC)
    MDL NO:
    MFCD00040750
    Molecular Formula:
    C8H7BrO2
    Molecular Weight:
    215.05
    Specification Sheet SDS

  • 2,4-Dichloro-5-nitropyrimidine

    Purity:
    ≥ 98% (HPLC)
    Catalog Number:
    24674
    CAS Number:
    49845-33-2
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00127867
    Molecular Formula:
    C4HCl2N3O2
    Molecular Weight:
    193.98
    Specification Sheet SDS

  • 3-Methyl-2-phenylpyrazole-4-carboxylic acid

    Purity:
    ≥ 97% (HPLC)
    Synonym:
    5-Methyl-1-phenyl-1H-pyrazole-4-carboxylic acid
    Catalog Number:
    24669
    CAS Number:
    91138-00-0
    Purity Limit:
    ≥ 97% (HPLC)
    MDL NO:
    MFCD00067831
    Molecular Formula:
    C11H10N2O2
    Molecular Weight:
    202.21
    Specification Sheet SDS

  • 3-Carbethoxycoumarin

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Ethyl coumarin-3-carboxylate
    Catalog Number:
    24655
    CAS Number:
    1846-76-0
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00016964
    Molecular Formula:
    C12H10O4
    Molecular Weight:
    218.21
    Specification Sheet SDS

  • 6-Chlorochroman-4-one

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    6-Chloro-3,4-dihydro-2H-1-benzopyran-4-one
    Catalog Number:
    24659
    CAS Number:
    37674-72-9
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00024070
    Molecular Formula:
    C9H7ClO2
    Molecular Weight:
    182.61
    Specification Sheet SDS

  • 4-Chromanone

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    2,3-Dihydro-1-benzopyran-4-one
    Catalog Number:
    24650
    CAS Number:
    491-37-2
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00006840
    Molecular Formula:
    C9H8O2
    Molecular Weight:
    148.16
    Specification Sheet SDS

  • Ethyl 4-chloro-2-methylthio-5-pyrimidinecarboxylate

    Purity:
    ≥ 97% (HPLC)
    Synonym:
    2-Methylthio-4-chloro-5-ethoxycarbonylpyrimidine
    Catalog Number:
    24647
    CAS Number:
    5909-24-0
    Purity Limit:
    ≥ 97% (HPLC)
    MDL NO:
    MFCD00006085
    Molecular Formula:
    C8H9ClN2O2S
    Molecular Weight:
    232.69
    Specification Sheet SDS

  • 4-Amino-6-chloro-2-(methylthio)pyrimidine

    Purity:
    ≥ 97% (HPLC)
    Synonym:
    4-Amino-6-chloro-2-methylmercaptopyrimidine
    Catalog Number:
    24648
    CAS Number:
    1005-38-5
    Purity Limit:
    ≥ 97% (HPLC)
    MDL NO:
    MFCD00006088
    Molecular Formula:
    C5H6ClN3S
    Molecular Weight:
    175.64
    Specification Sheet SDS

  • 4,5-Diphenylimidazole

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    4,5-Diphenyl-1H-imidazole
    Catalog Number:
    24646
    CAS Number:
    668-94-0
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00005198
    Molecular Formula:
    C15H12N2
    Molecular Weight:
    220.27
    Specification Sheet SDS

  • 2-Amino-6-bromopyridine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    6-Bromo-2-pyridinamine
    Catalog Number:
    24610
    CAS Number:
    19798-81-3
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00137843
    Molecular Formula:
    C5H5BrN2
    Molecular Weight:
    173.01
    Specification Sheet SDS

  • 2-Thiazolecarboxaldehyde

    Hazmat
    Purity:
    ≥ 95% (Assay)
    Synonym:
    2-Formylthiazole
    Hazmat
    Catalog Number:
    24611
    CAS Number:
    10200-59-6
    Purity Limit:
    ≥ 95% (Assay)
    MDL NO:
    MFCD00142924
    Molecular Formula:
    C4H3NOS
    Molecular Weight:
    113.14
    Specification Sheet SDS

  • 3-Amino-2-pyrazinecarboxylic acid methyl ester

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Methyl 3-amino-2-pyrazinecarboxylate
    Catalog Number:
    24553
    CAS Number:
    16298-03-6
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00010097
    Molecular Formula:
    C6H7N3O2
    Molecular Weight:
    153.14
    Specification Sheet SDS

  • 6-Aminoquinoline

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    6-Quinolinamine
    Catalog Number:
    24522
    CAS Number:
    580-15-4
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00006803
    Molecular Formula:
    C9H8N2
    Molecular Weight:
    144.18
    Specification Sheet SDS

  • Aminopyrazine

    Purity:
    ≥ 99% (Assay)
    Synonym:
    Pyrazin-2-ylamine
    Catalog Number:
    24511
    CAS Number:
    5049-61-6
    Purity Limit:
    ≥ 99% (Assay)
    MDL NO:
    MFCD00006137
    Molecular Formula:
    C4H5N3
    Molecular Weight:
    95.1
    Specification Sheet SDS

  • 2,6-Dichloropyrazine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    24510
    CAS Number:
    4774-14-5
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00006125
    Molecular Formula:
    C4H2Cl2N2
    Molecular Weight:
    148.98
    Specification Sheet SDS

  • 4,6-Dichloropyrimidine

    Hazmat
    Purity:
    ≥ 99% (GC)
    Hazmat
    Catalog Number:
    24509
    CAS Number:
    1193-21-1
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00006109
    Molecular Formula:
    C4H2Cl2N2
    Molecular Weight:
    148.98
    Specification Sheet SDS

  • 2-Mercaptobenzoxazole

    Purity:
    ≥ 98.5% (HPLC)
    Synonym:
    2-Benzoxazolethiol
    Catalog Number:
    24502
    CAS Number:
    2382-96-9
    Purity Limit:
    ≥ 98.5% (HPLC)
    MDL NO:
    MFCD00005769
    Molecular Formula:
    C7H5NOS
    Molecular Weight:
    151.19
    Specification Sheet SDS

  • 5-Amino-4,6-dichloropyrimidine

    Purity:
    ≥ 98% (Assay)
    Synonym:
    4,6-Dichloro-5-pyrimidinamine
    Catalog Number:
    24508
    CAS Number:
    5413-85-4
    Purity Limit:
    ≥ 98% (Assay)
    MDL NO:
    MFCD00006108
    Molecular Formula:
    C4H3Cl2N3
    Molecular Weight:
    164.0
    Specification Sheet SDS

  • 3-Bromothiophene

    Hazmat
    Purity:
    ≥ 97% (GC)
    Synonym:
    3-Thienyl bromide
    Hazmat
    Catalog Number:
    24496
    CAS Number:
    872-31-1
    Purity Limit:
    ≥ 97% (GC)
    MDL NO:
    MFCD00005464
    Molecular Formula:
    C4H3BrS
    Molecular Weight:
    163.03
    SDS

  • 3,4-Dibromothiophene

    Purity:
    ≥ 99% (GC)
    Catalog Number:
    24497
    CAS Number:
    3141-26-2
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00005465
    Molecular Formula:
    C4H2Br2S
    Molecular Weight:
    241.93
    Specification Sheet SDS

  • 2-Bromothiophene

    Hazmat
    Purity:
    ≥ 98% (GC)
    Synonym:
    2-Thienyl bromide
    Hazmat
    Catalog Number:
    24495
    CAS Number:
    1003-09-4
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00005417
    Molecular Formula:
    C4H3BrS
    Molecular Weight:
    163.03
    SDS

  • 2-Aminothiazole

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    2-Thiazylamine
    Catalog Number:
    24494
    CAS Number:
    96-50-4
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00005325
    Molecular Formula:
    C3H4N2S
    Molecular Weight:
    100.15
    Specification Sheet SDS

  • 2-Acetylthiazole

    Purity:
    ≥ 99% (GC)
    Synonym:
    Methyl-2-thiazoyl ketone
    Catalog Number:
    24493
    CAS Number:
    24295-03-2
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00005324
    Molecular Formula:
    C5H5NOS
    Molecular Weight:
    127.17
    Specification Sheet SDS

  • N,N'-Thiocarbonyldiimidazole

    Purity:
    ≥ 98% (Assay by titration)
    Synonym:
    1,1'-Thiocarbonyldiimidazole
    Catalog Number:
    24491
    CAS Number:
    6160-65-2
    Purity Limit:
    ≥ 98% (Assay by titration)
    MDL NO:
    MFCD00005289
    Molecular Formula:
    C7H6N4S
    Molecular Weight:
    178.22
    Specification Sheet SDS

  • 2-Bromothiazole

    Purity:
    ≥ 99% (GC)
    Synonym:
    2-Thiazolyl bromide
    Catalog Number:
    24492
    CAS Number:
    3034-53-5
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00005316
    Molecular Formula:
    C3H2BrNS
    Molecular Weight:
    164.03
    Specification Sheet SDS

  • 3-Aminopyrazole

    Hazmat
    Purity:
    ≥ 98% (GC)
    Synonym:
    3-Pyrazolamine
    Hazmat
    Catalog Number:
    24487
    CAS Number:
    1820-80-0
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00005236
    Molecular Formula:
    C3H5N3
    Molecular Weight:
    83.09
    Specification Sheet SDS

  • 3-Amino-4-cyanopyrazole

    Purity:
    ≥ 99%
    Synonym:
    3-Aminopyrazole-4-carbonitrile
    Catalog Number:
    24488
    CAS Number:
    16617-46-2
    Purity Limit:
    ≥ 99%
    MDL NO:
    MFCD00005237
    Molecular Formula:
    C4H4N4
    Molecular Weight:
    108.1
    Specification Sheet SDS

  • Pyrrole-2-carboxylic acid

    Purity:
    ≥ 98.5% (titration)
    Synonym:
    2-Carboxypyrrole
    Catalog Number:
    24486
    CAS Number:
    634-97-9, 17639-63-3
    Purity Limit:
    ≥ 98.5% (titration)
    MDL NO:
    MFCD00005219
    Molecular Formula:
    C5H5NO2
    Molecular Weight:
    111.1
    Specification Sheet SDS

  • 2-Chloro-5-Iodopyrimidine

    Purity:
    ≥ 95% (HPLC)
    Catalog Number:
    24348
    CAS Number:
    32779-38-7
    Purity Limit:
    ≥ 95% (HPLC)
    MDL NO:
    MFCD06200210
    Molecular Formula:
    C4H2ClIN2
    Molecular Weight:
    240.43
    Specification Sheet SDS

  • 2-N-Propyl-4-methyl-6-(1-methylbenzimidazole-2-yl)benzimidazole

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    4-Methyl-6-(1-methylbenzimidazol-2-yl)-2-propylbenzimidazole
    Catalog Number:
    24208
    CAS Number:
    152628-02-9
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD03840857
    Molecular Formula:
    C19H20N4
    Molecular Weight:
    304.4
    Specification Sheet SDS

  • 6-Bromoindole-2-carboxylic acid

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    6-Bromo-2-indolecarboxylic acid
    Catalog Number:
    24200
    CAS Number:
    16732-65-3
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD02664469
    Molecular Formula:
    C9H6BrNO2
    Molecular Weight:
    240.06
    Specification Sheet SDS

  • 2-Phenylindole-3-carboxaldehyde

    Purity:
    ≥ 99% (Assay)
    Synonym:
    2-Phenyl-1H-indole-3-carbaldehyde
    Catalog Number:
    24176
    CAS Number:
    25365-71-3
    Purity Limit:
    ≥ 99% (Assay)
    MDL NO:
    MFCD00435481
    Molecular Formula:
    C15H11NO
    Molecular Weight:
    221.26
    Specification Sheet SDS

  • 4-(3-Chloropropyl)morpholine

    Purity:
    ≥ 99% (GC)
    Synonym:
    3-Morpholinopropyl chloride
    Catalog Number:
    24139
    CAS Number:
    7357-67-7
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00039714
    Molecular Formula:
    C7H14ClNO
    Molecular Weight:
    163.65
    Specification Sheet SDS

  • 5-Nitro-6-methyluracil

    Synonym:
    2,4-Dihydroxy-5-nitro-6-methylpyrimidine
    Catalog Number:
    24143
    CAS Number:
    16632-21-6
    MDL NO:
    MFCD00051201
    Molecular Formula:
    C5H5N3O4
    Molecular Weight:
    171.11
    Specification Sheet SDS

  • 1,3-Thiazol-2-ylmethanol

    Purity:
    ≥ 98% (Assay)
    Synonym:
    2-(Hydroxymethyl)-1,3-thiazole
    Catalog Number:
    24020
    CAS Number:
    14542-12-2
    Purity Limit:
    ≥ 98% (Assay)
    MDL NO:
    MFCD06200855
    Molecular Formula:
    C4H5NOS
    Molecular Weight:
    115.16
    Specification Sheet SDS

  • 7-Chlorothieno[3,2-B]Pyridine

    Purity:
    ≥ 98% (HPLC)
    Catalog Number:
    23819
    CAS Number:
    69627-03-8
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD08448161
    Molecular Formula:
    C7H4ClNS
    Molecular Weight:
    169.64
    Specification Sheet SDS

  • 3-Iodo-6-Nitro (1H)Indazole

    Catalog Number:
    23801
    CAS Number:
    70315-70-7
    MDL NO:
    MFCD07781652
    Molecular Formula:
    C7H4IN3O2
    Molecular Weight:
    289.03
    SDS

  • 1-(2-Hydroxyethyl)-4-methylpiperazine

    Purity:
    ≥ 95%
    Synonym:
    2-(4-Methylpiperazin-1-yl)ethanol
    Catalog Number:
    23695
    CAS Number:
    5464-12-0
    Purity Limit:
    ≥ 95%
    MDL NO:
    MFCD03840691
    Molecular Formula:
    C7H16N2O
    Molecular Weight:
    144.22
    Specification Sheet SDS

  • 1-(Methylsulfonyl)Piperazine Hydrochloride

    Purity:
    ≥ 95% (NMR)
    Catalog Number:
    23455
    CAS Number:
    55276-43-2
    Purity Limit:
    ≥ 95% (NMR)
    MDL NO:
    MFCD02018964
    Molecular Formula:
    C5H12N2O2S·HCl
    Molecular Weight:
    200.69
    Specification Sheet SDS

  • 2-(4-Methoxyphenyl)pyrrolidine

    Purity:
    ≥ 96% (HPLC)
    Catalog Number:
    23326
    CAS Number:
    74190-66-2
    Purity Limit:
    ≥ 96% (HPLC)
    MDL NO:
    MFCD01631836
    Molecular Formula:
    C11H15NO
    Molecular Weight:
    177.25
    Specification Sheet SDS

  • 4-(3-Pyridinyl)-2-pyrimidine amine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    4-(3-Pyridinyl)-2-aminopyrimidine
    Catalog Number:
    23318
    CAS Number:
    66521-66-2
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD01317832
    Molecular Formula:
    C9H8N4
    Molecular Weight:
    172.19
    Specification Sheet SDS
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