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Building Blocks

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

  • 1-(2-Dimethylaminoethyl)-5-mercaptotetrazole

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    1-(2-Dimethylaminoethyl)-1H-tetrazole-5-thiol
    Catalog Number:
    44004
    Purity Limit:
    ≥ 98% (HPLC)
    CAS Number:
    61607-68-9
    MDL NO:
    MFCD00082923
    Molecular Formula:
    C5H11N5S
    Molecular Weight:
    173.24
    Specification Sheet SDS

  • 2,3-Di(p-tolyl)-5-phenyltetrazolium chloride

    Purity:
    ≥ 98% (HPLC)
    Catalog Number:
    44009
    Purity Limit:
    ≥ 98% (HPLC)
    CAS Number:
    104497-77-0
    MDL NO:
    MFCD00060002
    Molecular Formula:
    C21H19ClN4
    Molecular Weight:
    362.86
    Specification Sheet SDS

  • 2,3-Diphenyl-5-(2-thienyl)tetrazolium chloride

    Purity:
    ≥ 97% (HPLC)
    Synonym:
    STC
    Catalog Number:
    43998
    Purity Limit:
    ≥ 97% (HPLC)
    CAS Number:
    38800-20-3
    MDL NO:
    MFCD00060088
    Molecular Formula:
    C17H13ClN4S
    Molecular Weight:
    340.83
    Specification Sheet SDS

  • 2,3-Diphenyl-5-ethyltetrazolium chloride

    Purity:
    ≥ 98% (Assay by titration)
    Catalog Number:
    43997
    Purity Limit:
    ≥ 98% (Assay by titration)
    CAS Number:
    66138-05-4
    MDL NO:
    MFCD00060026
    Molecular Formula:
    C15H15ClN4
    Molecular Weight:
    286.76
    Specification Sheet SDS

  • 2,3-Bis(4-methoxyphenyl)-5-(4-cyanophenyl)tetrazolium chloride

    Purity:
    ≥ 95% (HPLC)
    Catalog Number:
    44007
    Purity Limit:
    ≥ 95% (HPLC)
    CAS Number:
    151390-91-9
    MDL NO:
    MFCD00060131
    Molecular Formula:
    C22H18ClN5O2
    Molecular Weight:
    419.87
    Specification Sheet SDS

  • 1-(4-Ethoxyphenyl)-5-mercapto-1H-tetrazole

    Hazmat
    Purity:
    ≥ 98% (HPLC)
    Synonym:
    1-(4-Ethoxyphenyl)-1H-tetrazole-5-thiol
    Hazmat
    Catalog Number:
    44001
    Purity Limit:
    ≥ 98% (HPLC)
    CAS Number:
    15182-68-0
    MDL NO:
    MFCD02252889
    Molecular Formula:
    C9H10N4OS
    Molecular Weight:
    222.27
    Specification Sheet SDS

  • 3-(4-Nitrophenyl)-5-methyl-2-phenyltetrazolium chloride

    Hazmat
    Purity:
    ≥ 98% (HPLC)
    Synonym:
    2-Phenyl-3-(4-nitrophenyl)-5-methyltetrazolium chloride
    Hazmat
    Catalog Number:
    43996
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00060011
    Molecular Formula:
    C14H12ClN5O2
    Molecular Weight:
    317.73
    Specification Sheet SDS

  • 1,5-Pentamethylenetetrazole

    Hazmat
    Purity:
    ≥ 98% (GC)
    Synonym:
    Cardiazole
    Hazmat
    Catalog Number:
    44005
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    54-95-5
    MDL NO:
    MFCD00005939
    Molecular Formula:
    C6H10N4
    Molecular Weight:
    138.17
    Specification Sheet SDS

  • 2,3-Diphenyl-5-methyltetrazolium chloride

    Purity:
    ≥ 95% (Assay by titration)
    Catalog Number:
    44002
    Purity Limit:
    ≥ 95% (Assay by titration)
    CAS Number:
    6275-01-0
    MDL NO:
    MFCD00060025
    Molecular Formula:
    C14H13ClN4
    Molecular Weight:
    272.74
    Specification Sheet SDS

  • 2,3-Diphenyl-5-carboxytetrazolium chloride

    Purity:
    ≥ 96% (Assay by titration)
    Catalog Number:
    44000
    Purity Limit:
    ≥ 96% (Assay by titration)
    CAS Number:
    2118-40-3
    MDL NO:
    MFCD00060087
    Molecular Formula:
    C14H11ClN4O2
    Molecular Weight:
    302.72
    Specification Sheet SDS

  • 2-Hydroxyquinoxaline

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    2-Quinoxalinol
    Catalog Number:
    43984
    Purity Limit:
    ≥ 98% (HPLC)
    CAS Number:
    1196-57-2
    MDL NO:
    MFCD00006722
    Molecular Formula:
    C8H6N2O
    Molecular Weight:
    146.15
    Specification Sheet SDS

  • Ethyl 1H-tetrazole-5-acetate

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    1H-Tetrazole-5-acetic acid ethyl ester
    Catalog Number:
    43999
    Purity Limit:
    ≥ 98% (HPLC)
    CAS Number:
    13616-37-0
    MDL NO:
    MFCD00274213
    Molecular Formula:
    C5H8N4O2
    Molecular Weight:
    156.15
    Specification Sheet SDS

  • 2,3-Diphenyl-5-(4-methoxyphenyl)tetrazolium chloride

    Purity:
    ≥ 80% (Assay by titration)
    Catalog Number:
    43995
    Purity Limit:
    ≥ 80% (Assay by titration)
    CAS Number:
    10560-45-9
    MDL NO:
    MFCD00060032
    Molecular Formula:
    C20H17ClN4O
    Molecular Weight:
    364.83
    Specification Sheet SDS

  • 3,3'-(3,3'-Dimethoxy-4,4'-diphenylene)bis(2-phenyl-5-veratryltetrazolium chloride)

    Purity:
    ≥ 98%
    Catalog Number:
    43994
    Purity Limit:
    ≥ 98%
    CAS Number:
    106629-90-7
    MDL NO:
    MFCD00060036
    Molecular Formula:
    C46H44Cl2N8O6
    Molecular Weight:
    875.81
    Specification Sheet SDS

  • Quinoxaline 1-oxide

    Hazmat
    Purity:
    ≥ 97% (GC)
    Synonym:
    Quinoxaline N-Oxide
    Hazmat
    Catalog Number:
    43978
    Purity Limit:
    ≥ 97% (GC)
    CAS Number:
    6935-29-1
    MDL NO:
    MFCD00054593
    Molecular Formula:
    C8H6N2O
    Molecular Weight:
    146.15
    Specification Sheet SDS

  • 1-(4-Carboxyphenyl)-5-mercapto-1H-tetrazole

    Hazmat
    Purity:
    ≥ 95% (HPLC)
    Synonym:
    1-(4-Carboxyphenyl)-1H-tetrazole-5-thiol
    Hazmat
    Catalog Number:
    43992
    Purity Limit:
    ≥ 95% (HPLC)
    CAS Number:
    23249-95-8
    MDL NO:
    MFCD01074835
    Molecular Formula:
    C8H6N4O2S
    Molecular Weight:
    222.22
    Specification Sheet SDS

  • Benzo[g]quinoxaline

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    43983
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    260-50-4
    MDL NO:
    MFCD18449114
    Molecular Formula:
    C12H8N2
    Molecular Weight:
    180.21
    Specification Sheet SDS

  • m-Tolyltetrazolium red

    Purity:
    ≥ 98% (Assay by titration)
    Synonym:
    2,5-Diphenyl-3-(m-tolyl)tetrazolium chloride
    Catalog Number:
    43991
    Purity Limit:
    ≥ 98% (Assay by titration)
    CAS Number:
    88159-25-5
    MDL NO:
    MFCD00059997
    Molecular Formula:
    C20H17ClN4
    Molecular Weight:
    348.83
    Specification Sheet SDS

  • 3-Quinuclidinone hydrochloride

    Purity:
    ≥ 98% (Assay by titration)
    Synonym:
    1-Azabicyclo[2.2.2]octan-3-one hydrochloride
    Catalog Number:
    43989
    Purity Limit:
    ≥ 98% (Assay by titration)
    CAS Number:
    1193-65-3
    MDL NO:
    MFCD00137391
    Molecular Formula:
    C7H11NO·HCl
    Molecular Weight:
    161.63
    Specification Sheet SDS

  • 2-Methylquinoxaline

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    43985
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    7251-61-8
    MDL NO:
    MFCD00006727
    Molecular Formula:
    C9H8N2
    Molecular Weight:
    144.18
    Specification Sheet SDS

  • 6-Quinoxalinol

    Purity:
    ≥ 98% (GC)
    Synonym:
    6-Hydroxyquinoxaline
    Catalog Number:
    43975
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    7467-91-6
    MDL NO:
    MFCD07364440
    Molecular Formula:
    C8H6N2O
    Molecular Weight:
    146.15
    Specification Sheet SDS

  • 2,5-Diphenyl-3-(4-styrylphenyl)tetrazolium chloride

    Purity:
    ≥ 96% (Assay by titration)
    Catalog Number:
    43993
    Purity Limit:
    ≥ 96% (Assay by titration)
    CAS Number:
    24387-36-8
    MDL NO:
    MFCD00050315
    Molecular Formula:
    C27H21ClN4
    Molecular Weight:
    436.94
    Specification Sheet SDS

  • Quincorine

    Purity:
    ≥ 98% (GC)
    Synonym:
    (1S,2S,5S-2-(Hydroxymethyl)-5-vinylquinuclidine
    Catalog Number:
    43990
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    207129-35-9
    MDL NO:
    MFCD08276491
    Molecular Formula:
    C10H17NO
    Molecular Weight:
    167.25
    Specification Sheet SDS

  • trans-Decahydroquinoline

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    43969
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    767-92-0
    MDL NO:
    MFCD00137755
    Molecular Formula:
    C9H17N
    Molecular Weight:
    139.24
    Specification Sheet SDS

  • 2,3-Dimethylquinoxaline

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    43982
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    2379-55-7
    MDL NO:
    MFCD00006728
    Molecular Formula:
    C10H10N2
    Molecular Weight:
    158.2
    Specification Sheet SDS

  • Quinuclidine hydrochloride

    Hazmat
    Purity:
    ≥ 98% (Assay by titration)
    Synonym:
    1-Azabicyclo[2.2.2]octane hydrochloride
    Hazmat
    Catalog Number:
    43988
    Purity Limit:
    ≥ 98% (Assay by titration)
    CAS Number:
    39896-06-5
    MDL NO:
    MFCD00012727
    Molecular Formula:
    C7H13N·HCl
    Molecular Weight:
    147.65
    Specification Sheet SDS

  • 1,4-Dihydro-6-methylquinoxaline-2,3-dione

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    6-Methyl-1,4-dihydroquinoxaline-2,3-dione
    Catalog Number:
    43986
    Purity Limit:
    ≥ 98% (HPLC)
    CAS Number:
    6309-61-1
    MDL NO:
    MFCD03055725
    Molecular Formula:
    C9H8N2O2
    Molecular Weight:
    176.18
    Specification Sheet SDS

  • 5-Quinoxalinol

    Purity:
    ≥ 98% (GC)
    Synonym:
    5-Hydroxyquinoxaline
    Catalog Number:
    43979
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    17056-99-4
    MDL NO:
    MFCD00972004
    Molecular Formula:
    C8H6N2O
    Molecular Weight:
    146.15
    Specification Sheet SDS

  • Quincoridine

    Purity:
    ≥ 95% (GC)
    Synonym:
    (1S,2R,5R-2-(Hydroxymethyl)-5-vinylquinuclidine
    Catalog Number:
    43987
    Purity Limit:
    ≥ 95% (GC)
    CAS Number:
    207129-36-0
    MDL NO:
    MFCD08275406
    Molecular Formula:
    C10H17NO
    Molecular Weight:
    167.25
    Specification Sheet SDS

  • 2,3-Diphenylquinoxaline

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    43981
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    1684-14-6
    MDL NO:
    MFCD00014659
    Molecular Formula:
    C20H14N2
    Molecular Weight:
    282.35
    Specification Sheet SDS

  • 5-Methylquinoxaline

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    43974
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    13708-12-8
    MDL NO:
    MFCD00012335
    Molecular Formula:
    C9H8N2
    Molecular Weight:
    144.18
    Specification Sheet SDS

  • Benzo[h]quinoline

    Purity:
    ≥ 99% (GC)
    Synonym:
    4-Azaphenanthrene
    Catalog Number:
    43963
    Purity Limit:
    ≥ 99% (GC)
    CAS Number:
    230-27-3
    MDL NO:
    MFCD00004984
    Molecular Formula:
    C13H9N
    Molecular Weight:
    179.22
    Specification Sheet SDS

  • 6-Methyl-1,2,3,4-tetrahydroquinoline

    Purity:
    ≥ 97% (GC)
    Synonym:
    1,2,3,4-Tetrahydro-6-methylquinoline
    Catalog Number:
    43972
    Purity Limit:
    ≥ 97% (GC)
    CAS Number:
    91-61-2
    MDL NO:
    MFCD00023887
    Molecular Formula:
    C10H13N
    Molecular Weight:
    147.22
    Specification Sheet SDS

  • 6-Aminoquinoxaline

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    43977
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    6298-37-9
    MDL NO:
    MFCD00462821
    Molecular Formula:
    C8H7N3
    Molecular Weight:
    145.17
    Specification Sheet SDS

  • 1,2,3,4-Tetrahydroquinoxaline

    Hazmat
    Purity:
    ≥ 98% (GC)
    Hazmat
    Catalog Number:
    43980
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    3476-89-9
    MDL NO:
    MFCD00047564
    Molecular Formula:
    C8H10N2
    Molecular Weight:
    134.18
    Specification Sheet SDS

  • 8-Nitro-7-quinolinecarboxaldehyde

    Purity:
    ≥ 98% (GC)
    Synonym:
    7-Formyl-8-nitroquinoline
    Catalog Number:
    43962
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    101327-87-1
    MDL NO:
    MFCD08436438
    Molecular Formula:
    C10H6N2O3
    Molecular Weight:
    202.17
    Specification Sheet SDS

  • Quinoxaline

    Purity:
    ≥ 99% (GC)
    Catalog Number:
    43976
    Purity Limit:
    ≥ 99% (GC)
    CAS Number:
    91-19-0
    MDL NO:
    MFCD00006719
    Molecular Formula:
    C8H6N2
    Molecular Weight:
    130.15
    Specification Sheet SDS

  • 1,2,3,4-Tetrahydroquinoline

    Purity:
    ≥ 96% (GC)
    Catalog Number:
    43953
    Purity Limit:
    ≥ 96% (GC)
    CAS Number:
    635-46-1
    MDL NO:
    MFCD00006693
    Molecular Formula:
    C9H11N
    Molecular Weight:
    133.19
    Specification Sheet SDS

  • 4-(4-Dimethylaminostyryl)quinoline

    Purity:
    ≥ 96% (HPLC)
    Catalog Number:
    43968
    Purity Limit:
    ≥ 96% (HPLC)
    CAS Number:
    897-55-2
    MDL NO:
    MFCD00191349
    Molecular Formula:
    C19H18N2
    Molecular Weight:
    274.37
    Specification Sheet SDS

  • 2-Quinoxalinecarboxylic acid

    Purity:
    ≥ 96% (GC)
    Catalog Number:
    43973
    Purity Limit:
    ≥ 96% (GC)
    CAS Number:
    879-65-2
    MDL NO:
    MFCD00012334
    Molecular Formula:
    C9H6N2O2
    Molecular Weight:
    174.16
    Specification Sheet SDS

  • 2,4-Dihydroxyquinoline

    Purity:
    ≥ 97% (GC)
    Synonym:
    2,4-Quinolinediol
    Catalog Number:
    43967
    Purity Limit:
    ≥ 97% (GC)
    CAS Number:
    86-95-3
    MDL NO:
    MFCD00006744
    Molecular Formula:
    C9H7NO2
    Molecular Weight:
    161.16
    Specification Sheet SDS

  • 5,6,7,8-Tetrahydroquinoline

    Purity:
    ≥ 96% (GC)
    Catalog Number:
    43960
    Purity Limit:
    ≥ 96% (GC)
    CAS Number:
    10500-57-9
    MDL NO:
    MFCD00006734
    Molecular Formula:
    C9H11N
    Molecular Weight:
    133.19
    Specification Sheet SDS

  • 2,8-Dihydroxyquinoline

    Purity:
    ≥ 98% (GC)
    Synonym:
    2,8-Quinolinediol
    Catalog Number:
    43971
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    15450-76-7
    MDL NO:
    MFCD00216696
    Molecular Formula:
    C9H7NO2
    Molecular Weight:
    161.16
    Specification Sheet SDS

  • 6-Amino-2-methylquinoline

    Purity:
    ≥ 98% (GC)
    Synonym:
    6-Aminoquinaldine
    Catalog Number:
    43956
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    65079-19-8
    MDL NO:
    MFCD00052600
    Molecular Formula:
    C10H10N2
    Molecular Weight:
    158.2
    Specification Sheet SDS

  • Sodium 8-ethoxyquinoline-5-sulfonate hydrate

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Actinoquinol sodium salt hydrate
    Catalog Number:
    43959
    Purity Limit:
    ≥ 98% (HPLC)
    CAS Number:
    7246-07-3
    MDL NO:
    MFCD00006794
    Molecular Formula:
    C11H10NNaO4S·xH2O
    Molecular Weight:
    275.25
    Specification Sheet SDS

  • 5-Amino-8-hydroxyquinoline dihydrochloride

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    5-Amino-8-quinolinol dihydrochloride
    Catalog Number:
    43958
    Purity Limit:
    ≥ 98% (HPLC)
    CAS Number:
    21302-43-2
    MDL NO:
    MFCD00012737
    Molecular Formula:
    C9H8N2O·2HCl
    Molecular Weight:
    233.09
    Specification Sheet SDS

  • 5,6,7,8-Tetrahydro-2-methylquinoline

    Purity:
    ≥ 98% (GC)
    Synonym:
    5,6,7,8-Tetrahydroquinaldine
    Catalog Number:
    43970
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    2617-98-3
    MDL NO:
    MFCD00191581
    Molecular Formula:
    C10H13N
    Molecular Weight:
    147.22
    Specification Sheet SDS

  • 2,6-Dimethylquinoline

    Purity:
    ≥ 99% (GC)
    Catalog Number:
    43957
    Purity Limit:
    ≥ 99% (GC)
    CAS Number:
    877-43-0
    MDL NO:
    MFCD00006762
    Molecular Formula:
    C11H11N
    Molecular Weight:
    157.22
    Specification Sheet SDS

  • 8-Hydroxy-7-propylquinoline

    Purity:
    ≥ 98% (GC)
    Synonym:
    7-Propyloxine
    Catalog Number:
    43965
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    58327-60-9
    MDL NO:
    MFCD00059755
    Molecular Formula:
    C12H13NO
    Molecular Weight:
    187.24
    Specification Sheet SDS

  • 8-Hydroxy-5-nitroquinoline

    Hazmat
    Purity:
    ≥ 98% (GC)
    Synonym:
    5-Nitro-8-quinolinol
    Hazmat
    Catalog Number:
    43949
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    4008-48-4
    MDL NO:
    MFCD00006791
    Molecular Formula:
    C9H6N2O3
    Molecular Weight:
    190.16
    Specification Sheet SDS
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