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Heterocyclic Building Blocks

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  • 1-Methyl-2-pyrrolidinone, distilled

    Hazmat
    Purity:
    ≥ 99.5% (Assay)
    Synonym:
    N-Methyl-2-ketopyrrolidine
    Hazmat
    Catalog Number:
    00741
    CAS Number:
    872-50-4
    Purity Limit:
    ≥ 99.5% (Assay)
    MDL NO:
    MFCD00003193
    Molecular Formula:
    C5H9NO
    Molecular Weight:
    0
    Specification Sheet SDS

  • 5-(Ethylthio)-1H-tetrazole

    Hazmat
    Purity:
    ≥ 99% (Assay by titration)
    Synonym:
    5-Ethylsulfanyl-1H-tetrazole
    Hazmat
    Catalog Number:
    01881
    CAS Number:
    89797-68-2
    Purity Limit:
    ≥ 99% (Assay by titration)
    MDL NO:
    MFCD00068733
    Molecular Formula:
    C3H6N4S
    Molecular Weight:
    0
    Specification Sheet SDS

  • Imidazole

    Hazmat
    Purity:
    ≥ 99% (Assay)
    Synonym:
    1,3-Diaza-2,4-cyclopentadiene
    Hazmat
    Catalog Number:
    00418
    CAS Number:
    288-32-4
    Purity Limit:
    ≥ 99% (Assay)
    MDL NO:
    MFCD00005183
    Molecular Formula:
    C3H4N2
    Molecular Weight:
    0
    Specification Sheet SDS

  • 1-Methyl-2-pyrrolidinone, distilled

    Hazmat
    Grade:
    ACS reagent
    Purity:
    ≥ 99% (GC)
    Synonym:
    N-Methyl-2-ketopyrrolidine
    Hazmat
    Catalog Number:
    30063
    Grade:
    ACS reagent
    CAS Number:
    872-50-4
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00003193
    Molecular Formula:
    C5H9NO
    Molecular Weight:
    0
    Specification Sheet SDS

  • 2,3,5-Triphenyl-2H-tetrazolium chloride

    Hazmat
    Purity:
    ≥ 99% (Assay)
    Synonym:
    Tetrazolium red
    Hazmat
    Catalog Number:
    01646
    CAS Number:
    298-96-4
    Purity Limit:
    ≥ 99% (Assay)
    MDL NO:
    MFCD00011963
    Molecular Formula:
    C19H15N4Cl
    Molecular Weight:
    0
    Specification Sheet SDS

  • 4-Iodonitrotetrazolium violet

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    2-(4-Iodophenyl)-3-(4-nitrophenyl)-5-phenyltetrazolium chloride
    Catalog Number:
    00193
    CAS Number:
    146-68-9
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00011961
    Molecular Formula:
    C19H13ClIN5O2
    Molecular Weight:
    505.7
    Specification Sheet SDS

  • N-Acetyl-5-methoxytryptamine

    Grade:
    Meets USP Specification
    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Melatonin
    Catalog Number:
    09492
    Grade:
    Meets USP Specification
    CAS Number:
    73-31-4
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00005655
    Molecular Formula:
    C13H16N2O2
    Molecular Weight:
    232.28
    Specification Sheet SDS

  • Piperazine,anhydrous

    Hazmat
    Purity:
    ≥ 99% (GC)
    Synonym:
    1,4-Diazacyclohexane
    Hazmat
    Catalog Number:
    06899
    CAS Number:
    110-85-0
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00005953
    Molecular Formula:
    C4H10N2
    Molecular Weight:
    0
    Specification Sheet SDS

  • N-Methylmorpholine

    Hazmat
    Purity:
    ≥ 99% (Assay)
    Synonym:
    4-Methylmorpholine
    Hazmat
    Catalog Number:
    02333
    CAS Number:
    109-02-4
    Purity Limit:
    ≥ 99% (Assay)
    MDL NO:
    MFCD00006175
    Molecular Formula:
    C5H11NO
    Molecular Weight:
    0
    Specification Sheet SDS

  • Hexamethylenetetramine

    Hazmat
    Purity:
    99 - 100%
    Synonym:
    Hexamine
    Hazmat
    Catalog Number:
    01234
    CAS Number:
    100-97-0
    Purity Limit:
    99 - 100%
    MDL NO:
    MFCD00006895
    Molecular Formula:
    C6H12N4
    Molecular Weight:
    0
    Specification Sheet SDS

  • Indole-3-acetic acid

    Purity:
    ≥ 98%
    Synonym:
    IAA
    Catalog Number:
    00188
    CAS Number:
    87-51-4
    Purity Limit:
    ≥ 98%
    MDL NO:
    MFCD00005636
    Molecular Formula:
    C10H9NO2
    Molecular Weight:
    175.19
    Specification Sheet SDS

  • Adenine hydrochloride

    Purity:
    ≥ 99% (Assay)
    Synonym:
    6-Aminopurine hydrochoride
    Catalog Number:
    00005
    CAS Number:
    2922-28-3, 6055-72-7
    Purity Limit:
    ≥ 99% (Assay)
    MDL NO:
    MFCD00075782
    Molecular Formula:
    C5H5N5·HCl
    Molecular Weight:
    171.6
    Specification Sheet SDS

  • 5-Iodouracil

    Purity:
    ≥ 98% (Assay)
    Catalog Number:
    44839
    CAS Number:
    696-07-1
    Purity Limit:
    ≥ 98% (Assay)
    MDL NO:
    MFCD00006020
    Molecular Formula:
    C4H3IN2O2
    Molecular Weight:
    237.98
    Specification Sheet SDS

  • 5-Amino-4,6-dichloro-2-(propylthio)pyrimidine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44838
    CAS Number:
    145783-15-9
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD16875503
    Molecular Formula:
    C7H9Cl2N3S
    Molecular Weight:
    238.13
    Specification Sheet SDS

  • Pyrrolidine

    Hazmat
    Purity:
    ≥ 99% (GC)
    Synonym:
    Tetramethyleneimine
    Hazmat
    Catalog Number:
    43864
    CAS Number:
    123-75-1
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00005249
    Molecular Formula:
    C4H9N
    Molecular Weight:
    0
    Specification Sheet SDS

  • 4,6-Dimethoxy-2-(methylsulfonyl)pyrimidine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    43704
    CAS Number:
    113583-35-0
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00672151
    Molecular Formula:
    C7H10N2O4S
    Molecular Weight:
    218.23
    Specification Sheet SDS

  • Piperazine dihydrochloride monohydrate

    Purity:
    ≥ 98%
    Catalog Number:
    43353
    CAS Number:
    142-64-3
    Purity Limit:
    ≥ 98%
    MDL NO:
    MFCD00012754
    Molecular Formula:
    C4H10N2·2HCl·H2O
    Molecular Weight:
    177.07
    Specification Sheet SDS

  • 5,7-Dichloro-8-quinolinol

    Purity:
    ≥ 98% (GC)
    Synonym:
    5,7-Dichloro-8-hydroxyquinoline
    Catalog Number:
    32052
    CAS Number:
    773-76-2
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00006786
    Molecular Formula:
    C9H5Cl2NO
    Molecular Weight:
    214.05
    Specification Sheet SDS

  • Trimorpholinophosphine oxide

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Phosphoric acid trimorpholide
    Catalog Number:
    31287
    CAS Number:
    4441-12-7
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00047406
    Molecular Formula:
    C12H24N3O4P
    Molecular Weight:
    305.31
    Specification Sheet SDS

  • Allantoin

    Grade:
    meets USP specifications
    Purity:
    98.5-101.0% (Assay)
    Synonym:
    5-Ureidohydantoin
    Catalog Number:
    30702
    Grade:
    meets USP specifications
    CAS Number:
    97-59-6
    Purity Limit:
    98.5-101.0% (Assay)
    MDL NO:
    MFCD00005260
    Molecular Formula:
    C4H6N4O3
    Molecular Weight:
    158.12
    Specification Sheet SDS

  • 2-Ethyl-4-methyl-1H-imidazole-1-propanenitrile

    Purity:
    ≥ 95% (GC)
    Synonym:
    1-(2-Cyanoethyl)-2-ethyl-4-methylimidazole
    Catalog Number:
    27687
    CAS Number:
    23996-25-0
    Purity Limit:
    ≥ 95% (GC)
    MDL NO:
    MFCD00051492
    Molecular Formula:
    C9H13N3
    Molecular Weight:
    163.22
    Specification Sheet SDS

  • 2-Amino-1H-benzimidazole

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    2-Aminobenzimidazole
    Catalog Number:
    26960
    CAS Number:
    934-32-7
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00005596
    Molecular Formula:
    C7H7N3
    Molecular Weight:
    133.15
    Specification Sheet SDS

  • 2,2,6,6-Tetramethylpiperidine

    Hazmat
    Purity:
    ≥ 99% (GC)
    Synonym:
    Norpempidine
    Hazmat
    Catalog Number:
    24504
    CAS Number:
    768-66-1
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00005985
    Molecular Formula:
    C9H19N
    Molecular Weight:
    0
    Specification Sheet SDS

  • Tryptamine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    1H-Indole-3-ethanamine
    Catalog Number:
    21918
    CAS Number:
    61-54-1
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00005661
    Molecular Formula:
    C10H12N2
    Molecular Weight:
    160.22
    Specification Sheet SDS

  • 5-Benzyloxyindole

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    5-Benzyloxy-1H-indole
    Catalog Number:
    21882
    CAS Number:
    1215-59-4
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00005676
    Molecular Formula:
    C15H13NO
    Molecular Weight:
    223.27
    Specification Sheet SDS

  • Kojic acid

    Purity:
    ≥ 99% (Assay)
    Synonym:
    2-Hydroxymethyl-5-hydroxy-1,4-pyrone
    Catalog Number:
    21857
    CAS Number:
    501-30-4
    Purity Limit:
    ≥ 99% (Assay)
    MDL NO:
    MFCD00006580
    Molecular Formula:
    C6H6O4
    Molecular Weight:
    142.11
    Specification Sheet SDS

  • Morpholine

    Hazmat
    Purity:
    ≥ 99% (GC)
    Hazmat
    Catalog Number:
    14091
    CAS Number:
    110-91-8
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00005972
    Molecular Formula:
    C4H9NO
    Molecular Weight:
    0
    Specification Sheet SDS

  • 1-Phenylpiperazine

    Hazmat
    Purity:
    ≥ 98% (Assay)
    Synonym:
    N-Phenylpiperazine
    Hazmat
    Catalog Number:
    06901
    CAS Number:
    92-54-6
    Purity Limit:
    ≥ 98% (Assay)
    MDL NO:
    MFCD00005957
    Molecular Formula:
    C10H14N2
    Molecular Weight:
    0
    Specification Sheet SDS

  • 1-Methylimidazole

    Hazmat
    Purity:
    ≥ 99% (GC)
    Synonym:
    N-Methylimidazole
    Hazmat
    Catalog Number:
    00526
    CAS Number:
    616-47-7
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00005292
    Molecular Formula:
    C4H6N2
    Molecular Weight:
    0
    Specification Sheet SDS

  • Guanine

    Purity:
    ≥ 98% (Assay)
    Synonym:
    2-Amino-6-hydroxypurine
    Catalog Number:
    00388
    CAS Number:
    73-40-5
    Purity Limit:
    ≥ 98% (Assay)
    MDL NO:
    MFCD00071533
    Molecular Formula:
    C5H5N5O
    Molecular Weight:
    151.13
    Specification Sheet SDS

  • N6-Benzyladenine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    6-Benzylaminopurine
    Catalog Number:
    00031
    CAS Number:
    1214-39-7
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00005572
    Molecular Formula:
    C12H11N5
    Molecular Weight:
    225.26
    Specification Sheet SDS

  • 1-Methyl-2-pyrrolidinone, Electronic Grade

    Hazmat
    Grade:
    Electronic Grade
    Purity:
    ≥ 99.5%
    Synonym:
    N-Methyl-2-ketopyrrolidine
    Hazmat
    Catalog Number:
    49520
    Grade:
    Electronic Grade
    CAS Number:
    872-50-4
    Purity Limit:
    ≥ 99.5%
    MDL NO:
    MFCD00003193
    Molecular Formula:
    C5H9NO
    Molecular Weight:
    99.13
    SDS

  • 4-Methylumbelliferone sodium salt

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    7-Hydroxy-4-methylcoumarin
    Catalog Number:
    49326
    CAS Number:
    5980-33-6
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00069856
    Molecular Formula:
    C10H7NaO3
    Molecular Weight:
    198.15
    Specification Sheet SDS

  • 3-Aminopyridine

    Hazmat
    Purity:
    ≥ 99% (GC)
    Synonym:
    3-Pyridinamine
    Hazmat
    Catalog Number:
    49318
    CAS Number:
    462-08-8
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00006400
    Molecular Formula:
    C5H6N2
    Molecular Weight:
    0
    Specification Sheet

  • 3-Hydroxybenzoic acid

    Purity:
    ≥ 98% (GC)
    Synonym:
    m-Salicylic acid
    Catalog Number:
    49319
    CAS Number:
    99-06-9
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00002506
    Molecular Formula:
    C7H6O3
    Molecular Weight:
    138.12
    Specification Sheet SDS

  • 3-Cyanopyridine

    Purity:
    ≥ 99% (GC)
    Synonym:
    3-Pyridinecarbonitrile
    Catalog Number:
    46568
    CAS Number:
    100-54-9
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00006372
    Molecular Formula:
    C6H4N2
    Molecular Weight:
    104.11
    SDS

  • 2-Cyanopyridine

    Purity:
    ≥ 99% (GC)
    Synonym:
    2-Pyridinecarbonitrile
    Catalog Number:
    46569
    CAS Number:
    100-70-9
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00006218
    Molecular Formula:
    C6H4N2
    Molecular Weight:
    104.11
    SDS

  • Methyl 3-bromothiophene-2-carboxylate

    Purity:
    ≥ 98% (GC)
    Synonym:
    3-Bromothiophene-2-carboxylic acid methyl ester
    Catalog Number:
    45009
    CAS Number:
    26137-08-6
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00173839
    Molecular Formula:
    C6H5BrO2S
    Molecular Weight:
    221.07
    Specification Sheet SDS

  • 2-Amino-4-chloro-5-formyl-3-thiophenecarbonitrile

    Hazmat
    Purity:
    ≥ 98% (GC)
    Synonym:
    2-Amino-4-chloro-3-cyano-5-formylthiophene
    Hazmat
    Catalog Number:
    45007
    CAS Number:
    104366-23-6
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD03788265
    Molecular Formula:
    C6H3ClN2OS
    Molecular Weight:
    0
    Specification Sheet SDS

  • 2,5-Diiodothiophene

    Purity:
    ≥ 97% (GC)
    Catalog Number:
    45018
    CAS Number:
    625-88-7
    Purity Limit:
    ≥ 97% (GC)
    MDL NO:
    MFCD00014525
    Molecular Formula:
    C4H2I2S
    Molecular Weight:
    335.93
    Specification Sheet SDS

  • Methyl 5-chlorothiophene-2-carboxylate

    Purity:
    ≥ 98% (GC)
    Synonym:
    5-Chlorothiophene-2-carboxylic acid methyl ester
    Catalog Number:
    45019
    CAS Number:
    35475-03-7
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD06203698
    Molecular Formula:
    C6H5ClO2S
    Molecular Weight:
    176.61
    Specification Sheet SDS

  • 4,6-Dichloro-1,3,5-triazin-2-amine

    Purity:
    ≥ 95% (HPLC)
    Synonym:
    2-Amino-4,6-dichloro-1,3,5-triazine
    Catalog Number:
    45041
    CAS Number:
    933-20-0
    Purity Limit:
    ≥ 95% (HPLC)
    MDL NO:
    MFCD00078331
    Molecular Formula:
    C3H2Cl2N4
    Molecular Weight:
    164.98
    Specification Sheet SDS

  • 3-Acetyl-2-(aminosulfonyl)-5-chlorothiophene

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    3-Acetyl-5-chloro-2-thiophenesulfonamide
    Catalog Number:
    45004
    CAS Number:
    160982-10-5
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD09033309
    Molecular Formula:
    C6H6ClNO3S2
    Molecular Weight:
    239.69
    Specification Sheet SDS

  • 3,4-Dichlorothiophene 1,1-dioxide

    Purity:
    ≥ 96% (GC)
    Catalog Number:
    45021
    CAS Number:
    52819-14-4
    Purity Limit:
    ≥ 96% (GC)
    MDL NO:
    MFCD00187130
    Molecular Formula:
    C4H2Cl2O2S
    Molecular Weight:
    185.02
    Specification Sheet SDS

  • tert-Butyl (4-bromothiophen-2-yl)carbamate

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    tert-Butyl (4-Bromo-2-thienyl)carbamate
    Catalog Number:
    45026
    CAS Number:
    868387-45-5
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD13195314
    Molecular Formula:
    C9H12BrNO2S
    Molecular Weight:
    278.16
    Specification Sheet SDS

  • 2-Chloro-3-methylthiophene

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    45010
    CAS Number:
    14345-97-2
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00130083
    Molecular Formula:
    C5H5ClS
    Molecular Weight:
    132.61
    Specification Sheet SDS

  • 2,5-Dibromo-3,4-dinitrothiophene

    Purity:
    ≥ 99% (GC)
    Catalog Number:
    45015
    CAS Number:
    52431-30-8
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00015537
    Molecular Formula:
    C4Br2N2O4S
    Molecular Weight:
    331.92
    Specification Sheet SDS

  • 2,5-Dibromothiophene

    Purity:
    ≥ 99% (GC)
    Catalog Number:
    45024
    CAS Number:
    3141-27-3
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00005420
    Molecular Formula:
    C4H2Br2S
    Molecular Weight:
    241.93
    Specification Sheet SDS

  • 2-Methyl-4,6-bis(trichloromethyl)-1,3,5-triazine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    45037
    CAS Number:
    949-42-8
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00023178
    Molecular Formula:
    C6H3Cl6N3
    Molecular Weight:
    329.81
    Specification Sheet SDS

  • 2,4-Dichloro-6-phenyl-1,3,5-triazine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    45040
    CAS Number:
    1700-02-3
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00047340
    Molecular Formula:
    C9H5Cl2N3
    Molecular Weight:
    226.06
    Specification Sheet SDS
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