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Building Blocks

7870
Sub Categories
Fluorinated Building Blocks 1631
Heterocyclic Building Blocks 3724
Non-Heterocyclic Building Blocks 2574

  • 4-Hydroxycoumarin

    Purity:
    ≥ 99%
    Synonym:
    4-Hydroxy-chromen-2-one
    Catalog Number:
    27086
    CAS Number:
    1076-38-6
    Purity Limit:
    ≥ 99%
    MDL NO:
    MFCD00006856
    Molecular Formula:
    C9H6O3
    Molecular Weight:
    162.14
    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

  • Gramine

    Purity:
    ≥ 97% (HPLC)
    Synonym:
    3-(Dimethylaminomethyl)indole
    Catalog Number:
    26961
    CAS Number:
    87-52-5
    Purity Limit:
    ≥ 97% (HPLC)
    MDL NO:
    MFCD00005629
    Molecular Formula:
    C11H14N2
    Molecular Weight:
    174.25
    Specification Sheet SDS

  • 4-Methylthiazole

    Hazmat
    Purity:
    ≥ 99% (GC)
    Synonym:
    4-Methyl-1,3-thiazole
    Hazmat
    Catalog Number:
    26939
    CAS Number:
    693-95-8
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00005340
    Molecular Formula:
    C4H5NS
    Molecular Weight:
    99.16
    Specification Sheet SDS

  • 2-Methylimidazole

    Hazmat
    Purity:
    ≥ 99% (GC)
    Synonym:
    2-Methylglyoxaline
    Hazmat
    Catalog Number:
    26928
    CAS Number:
    693-98-1
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00005190
    Molecular Formula:
    C4H6N2
    Molecular Weight:
    82.11
    Specification Sheet SDS

  • 2-Ethyl-4-methylimidazole

    Purity:
    ≥ 96% (GC)
    Catalog Number:
    26930
    CAS Number:
    931-36-2
    Purity Limit:
    ≥ 96% (GC)
    MDL NO:
    MFCD00005193
    Molecular Formula:
    C6H10N2
    Molecular Weight:
    110.16
    Specification Sheet SDS

  • 5-Dibenzosuberenone

    Purity:
    ≥ 98% (Assay)
    Synonym:
    5H-Dibenzo[a,d]cyclohepten-5-one
    Catalog Number:
    26897
    CAS Number:
    2222-33-5
    Purity Limit:
    ≥ 98% (Assay)
    MDL NO:
    MFCD00003588
    Molecular Formula:
    C15H10O
    Molecular Weight:
    206.24
    Specification Sheet SDS

  • 4-Cyanobenzaldehyde

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    p-Cyanobenzaldehyde
    Catalog Number:
    26879
    CAS Number:
    105-07-7
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00003376
    Molecular Formula:
    C8H5NO
    Molecular Weight:
    131.13
    Specification Sheet SDS

  • 1,3,4-Thiadiazole-2,5-dithiol

    Hazmat
    Purity:
    ≥ 98% (Assay by titration)
    Synonym:
    2,5-Dimercaptothiadiazole
    Hazmat
    Catalog Number:
    26857
    CAS Number:
    1072-71-5
    Purity Limit:
    ≥ 98% (Assay by titration)
    MDL NO:
    MFCD00003103
    Molecular Formula:
    C2H2N2S3
    Molecular Weight:
    150.25
    Specification Sheet SDS

  • 4-Amino-3-hydrazino-5-mercapto-1,2,4-triazole

    Hazmat
    Purity:
    ≥ 99% (HPLC)
    Synonym:
    4-Amino-3-hydrazino-4H-[1,2,4]triazole-5-thiol
    Hazmat
    Catalog Number:
    26856
    CAS Number:
    1750-12-5
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00003098
    Molecular Formula:
    C2H6N6S
    Molecular Weight:
    146.18
    Specification Sheet SDS

  • 4-Bromo-n-butyric acid

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    4-Bromobutyric acid
    Catalog Number:
    26847
    CAS Number:
    2623-87-2
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00002817
    Molecular Formula:
    C4H7BrO2
    Molecular Weight:
    167.0
    Specification Sheet SDS

  • 4-Ethoxybenzoic acid

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    p-Ethoxybenzoic acid
    Catalog Number:
    26839
    CAS Number:
    619-86-3
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00002545
    Molecular Formula:
    C9H10O3
    Molecular Weight:
    166.18
    Specification Sheet SDS

  • 3-Methylsalicylic acid

    Purity:
    ≥ 99% (Assay)
    Synonym:
    2-Hydroxy-3-methylbenzoic acid
    Catalog Number:
    26822
    CAS Number:
    83-40-9
    Purity Limit:
    ≥ 99% (Assay)
    MDL NO:
    MFCD00002448
    Molecular Formula:
    C8H8O3
    Molecular Weight:
    152.15
    SDS

  • 4-Fluorobenzoic acid

    Purity:
    ≥ 99% (GC)
    Synonym:
    p-Fluorobenzoic acid
    Catalog Number:
    26837
    CAS Number:
    456-22-4
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00002530
    Molecular Formula:
    C7H5FO2
    Molecular Weight:
    140.11
    Specification Sheet SDS

  • 3-Ethylphenol

    Hazmat
    Purity:
    ≥ 96% (GC)
    Synonym:
    m-Ethylphenol
    Hazmat
    Catalog Number:
    26816
    CAS Number:
    620-17-7
    Purity Limit:
    ≥ 96% (GC)
    MDL NO:
    MFCD00002311
    Molecular Formula:
    C8H10O
    Molecular Weight:
    122.17
    Specification Sheet SDS

  • 2',4'-Dihydroxyacetophenone

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    1-Acetyl-2,4-dihydroxybenzene
    Catalog Number:
    26813
    CAS Number:
    89-84-9
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00002279
    Molecular Formula:
    C8H8O3
    Molecular Weight:
    152.15
    Specification Sheet SDS

  • 4'-Hydroxy-3'-methylacetophenone

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    4-Acetyl-2-methylphenol
    Catalog Number:
    26808
    CAS Number:
    876-02-8
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00002231
    Molecular Formula:
    C9H10O2
    Molecular Weight:
    150.18
    Specification Sheet SDS

  • 9,10-Phenanthrenequinone

    Purity:
    ≥ 98% (Assay)
    Catalog Number:
    26771
    CAS Number:
    84-11-7
    Purity Limit:
    ≥ 98% (Assay)
    MDL NO:
    MFCD00001163
    Molecular Formula:
    C14H8O2
    Molecular Weight:
    208.22
    Specification Sheet SDS

  • 4'-Chloroacetophenone

    Hazmat
    Purity:
    ≥ 99% (GC)
    Synonym:
    1-Acetyl-4-chlorobenzene
    Hazmat
    Catalog Number:
    26758
    CAS Number:
    99-91-2
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00000624
    Molecular Formula:
    C8H7ClO
    Molecular Weight:
    154.6
    Specification Sheet SDS

  • 1,6-Dibromohexane

    Hazmat
    Purity:
    ≥ 99% (GC)
    Synonym:
    Hexamethylene dibromide
    Hazmat
    Catalog Number:
    26744
    CAS Number:
    629-03-8
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00000272
    Molecular Formula:
    C6H12Br2
    Molecular Weight:
    243.97
    Specification Sheet SDS

  • Cesium acetate

    Purity:
    ≥ 99.9%
    Synonym:
    Acetic acid cesium salt
    Catalog Number:
    26484
    CAS Number:
    3396-11-0
    Purity Limit:
    ≥ 99.9%
    MDL NO:
    MFCD00013056
    Molecular Formula:
    C2H3CsO2
    Molecular Weight:
    191.95
    Specification Sheet SDS

  • 4-(Maleimidomethyl)cyclohexane-1-carboxylic acid

    Purity:
    98 - 101% (Assay by titration)
    Synonym:
    Mal-AMCHC-OH
    Catalog Number:
    26453
    CAS Number:
    69907-67-1
    Purity Limit:
    98 - 101% (Assay by titration)
    MDL NO:
    MFCD11519178
    Molecular Formula:
    C12H15NO4
    Molecular Weight:
    237.25
    Specification Sheet SDS

  • 3-Phenylpropionic acid

    Purity:
    ≥ 99% (GC)
    Synonym:
    Benzylacetic acid
    Catalog Number:
    25774
    CAS Number:
    501-52-0
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00002771
    Molecular Formula:
    C9H10O2
    Molecular Weight:
    150.18
    Specification Sheet SDS

  • 2-Hydroxy-4-methoxyacetophenone

    Hazmat
    Purity:
    ≥ 99% (HPLC)
    Synonym:
    1-(2-Hydroxy-4-methoxyphenyl)ethanone
    Hazmat
    Catalog Number:
    25768
    CAS Number:
    552-41-0
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00008730
    Molecular Formula:
    C9H10O3
    Molecular Weight:
    166.18
    Specification Sheet

  • Ethyl 3,5-dimethyl-2-pyrrolecarboxylate

    Purity:
    ≥ 99% (GC)
    Synonym:
    3,5-Dimethyl-2-pyrrolecarboxylic acid ethyl ester
    Catalog Number:
    25026
    CAS Number:
    2199-44-2
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00010645
    Molecular Formula:
    C9H13NO2
    Molecular Weight:
    167.21
    Specification Sheet SDS

  • Cyclohexanecarboxylic acid

    Purity:
    ≥ 99.5% (GC)
    Synonym:
    Hexahydrobenzoic acid
    Catalog Number:
    21907
    CAS Number:
    98-89-5
    Purity Limit:
    ≥ 99.5% (GC)
    MDL NO:
    MFCD00001461
    Molecular Formula:
    C7H12O2
    Molecular Weight:
    128.17
    Specification Sheet SDS

  • 3-(Bromoacetyl)pyridine hydrobromide

    Purity:
    ≥ 99% (Titration)
    Synonym:
    2-Bromo-1-(3-pyridyl)ethanone hydrobromide
    Catalog Number:
    24916
    CAS Number:
    17694-68-7
    Purity Limit:
    ≥ 99% (Titration)
    MDL NO:
    MFCD00052182
    Molecular Formula:
    C7H6BrNO·HBr
    Molecular Weight:
    280.95
    Specification Sheet SDS

  • 2,4-Dimethoxybenzaldehyde

    Purity:
    ≥ 99% (Assay)
    Catalog Number:
    24867
    CAS Number:
    613-45-6
    Purity Limit:
    ≥ 99% (Assay)
    MDL NO:
    MFCD00003311
    Molecular Formula:
    C9H10O3
    Molecular Weight:
    166.18
    Specification Sheet SDS

  • 3-Methylpyrazole-5-carboxylic acid

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    5-Methyl-2H-pyrazole-3-carboxylic acid
    Catalog Number:
    24692
    CAS Number:
    402-61-9
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00462235
    Molecular Formula:
    C5H6N2O2
    Molecular Weight:
    126.11
    Specification Sheet SDS

  • Cupferron

    Hazmat
    Purity:
    ≥ 98%
    Synonym:
    N-Nitroso-N-phenylhydroxylamine ammonium salt
    Hazmat
    Catalog Number:
    24604
    CAS Number:
    135-20-6
    Purity Limit:
    ≥ 98%
    MDL NO:
    MFCD00078422
    Molecular Formula:
    C6H5N2O2·H4N
    Molecular Weight:
    155.16
    Specification Sheet SDS

  • Hydroxylamine sulfate

    Hazmat
    Purity:
    ≥ 99%
    Synonym:
    Hydroxylammonium sulfate
    Hazmat
    Catalog Number:
    24580
    CAS Number:
    10039-54-0
    Purity Limit:
    ≥ 99%
    MDL NO:
    MFCD00044869
    Molecular Formula:
    H2O4S·2H3NO
    Molecular Weight:
    164.14
    Specification Sheet SDS

  • Diethyl dicarbonate

    Hazmat
    Purity:
    ≥ 99% (GC)
    Synonym:
    Diethyl pyrocarbonate
    Hazmat
    Catalog Number:
    24544
    CAS Number:
    1609-47-8
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00009106
    Molecular Formula:
    C6H10O5
    Molecular Weight:
    162.14
    Specification Sheet SDS

  • 3,5-Dinitrobenzoyl chloride

    Hazmat
    Purity:
    ≥ 98% (GC)
    Synonym:
    3,5-Dinitrobenzoic acid chloride
    Hazmat
    Catalog Number:
    24526
    CAS Number:
    99-33-2
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00007248
    Molecular Formula:
    C7H3ClN2O5
    Molecular Weight:
    230.56
    Specification Sheet SDS

  • 4-Hydroxypiperidine

    Purity:
    ≥ 99% (GC)
    Synonym:
    4-Piperidinol
    Catalog Number:
    24505
    CAS Number:
    5382-16-1
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00005999
    Molecular Formula:
    C5H11NO
    Molecular Weight:
    101.15
    Specification Sheet SDS

  • Hexanal

    Hazmat
    Purity:
    ≥ 97% (GC)
    Synonym:
    Caproaldehyde
    Hazmat
    Catalog Number:
    24524
    CAS Number:
    66-25-1
    Purity Limit:
    ≥ 97% (GC)
    MDL NO:
    MFCD00007027
    Molecular Formula:
    C6H12O
    Molecular Weight:
    100.16
    Specification Sheet SDS

  • Anthranilamide

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Anthranilic acid amide
    Catalog Number:
    24534
    CAS Number:
    88-68-6
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00007981
    Molecular Formula:
    C7H8N2O
    Molecular Weight:
    136.15
    Specification Sheet SDS

  • 2-Methylpiperidine

    Hazmat
    Purity:
    ≥ 99% (GC)
    Synonym:
    2-Pipecoline
    Hazmat
    Catalog Number:
    24503
    CAS Number:
    109-05-7
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00005982
    Molecular Formula:
    C6H13N
    Molecular Weight:
    99.18
    Specification Sheet SDS

  • 2,4-Dichloropyrimidine

    Purity:
    ≥ 99% (HPLC)
    Catalog Number:
    24507
    CAS Number:
    3934-20-1
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00006061
    Molecular Formula:
    C4H2Cl2N2
    Molecular Weight:
    148.98
    Specification Sheet SDS

  • Succinimide

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    2,5-Diketopyrrolidene
    Catalog Number:
    24498
    CAS Number:
    123-56-8
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00005495
    Molecular Formula:
    C4H5NO2
    Molecular Weight:
    99.09
    Specification Sheet SDS

  • 3,5-Dimethylpyrazole

    Purity:
    ≥ 99.5% (HPLC)
    Catalog Number:
    24489
    CAS Number:
    67-51-6
    Purity Limit:
    ≥ 99.5% (HPLC)
    MDL NO:
    MFCD00005243
    Molecular Formula:
    C5H8N2
    Molecular Weight:
    96.13
    Specification Sheet SDS

  • 1-(Trimethylsilyl)imidazole

    Purity:
    ≥ 98% (GC)
    Synonym:
    N-Trimethylsilylimidazole
    Catalog Number:
    24490
    CAS Number:
    18156-74-6
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00005280
    Molecular Formula:
    C6H12N2Si
    Molecular Weight:
    140.26
    Specification Sheet SDS

  • (±)-Epichlorohydrin

    Hazmat
    Purity:
    ≥ 99% (GC)
    Synonym:
    1-Chloro-2,3-epoxypropane
    Hazmat
    Catalog Number:
    24484
    CAS Number:
    106-89-8
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00005132
    Molecular Formula:
    C3H5ClO
    Molecular Weight:
    92.52
    Specification Sheet SDS

  • Dibenzothiazine

    Purity:
    ≥ 99% (Assay)
    Synonym:
    Phenothiazine
    Catalog Number:
    24482
    CAS Number:
    92-84-2
    Purity Limit:
    ≥ 99% (Assay)
    MDL NO:
    MFCD00005015
    Molecular Formula:
    C12H9NS
    Molecular Weight:
    199.28
    Specification Sheet SDS

  • 2-Mercaptobenzoic acid

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Thiosalicylic acid
    Catalog Number:
    24480
    CAS Number:
    147-93-3
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00004836
    Molecular Formula:
    C7H6O2S
    Molecular Weight:
    154.19
    Specification Sheet SDS

  • 2,3,4,5,6-Pentafluorobenzaldehyde

    Hazmat
    Purity:
    ≥ 98% (GC)
    Synonym:
    Perfluorobenzaldehyde
    Hazmat
    Catalog Number:
    24467
    CAS Number:
    653-37-2
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00003303
    Molecular Formula:
    C7HF5O
    Molecular Weight:
    196.07
    Specification Sheet SDS

  • p-Anisaldehyde

    Purity:
    ≥ 99% (Assay)
    Synonym:
    4-Methoxybenzaldehyde
    Catalog Number:
    24468
    CAS Number:
    123-11-5
    Purity Limit:
    ≥ 99% (Assay)
    MDL NO:
    MFCD00003385
    Molecular Formula:
    C8H8O2
    Molecular Weight:
    136.15
    Specification Sheet SDS

  • 2-Iodobenzoic acid

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    o-Iodobenzoic acid
    Catalog Number:
    24457
    CAS Number:
    88-67-5
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00002419
    Molecular Formula:
    C7H5IO2
    Molecular Weight:
    248.01
    Specification Sheet SDS

  • 1-Bromo-3-chloropropane

    Hazmat
    Purity:
    ≥ 99.5% (GC)
    Synonym:
    3-Bromopropyl chloride
    Hazmat
    Catalog Number:
    24449
    CAS Number:
    109-70-6
    Purity Limit:
    ≥ 99.5% (GC)
    MDL NO:
    MFCD00000998
    Molecular Formula:
    C3H6BrCl
    Molecular Weight:
    157.44
    Specification Sheet SDS

  • 3-Butenyl bromide

    Hazmat
    Purity:
    ≥ 98% (GC)
    Synonym:
    4-Bromo-but-1-ene
    Hazmat
    Catalog Number:
    24439
    CAS Number:
    5162-44-7
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00000258
    Molecular Formula:
    C4H7Br
    Molecular Weight:
    135.0
    Specification Sheet SDS

  • 2'-Iodoacetanilide

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    N-(2-Iodophenyl)acetamide
    Catalog Number:
    23255
    CAS Number:
    19591-17-4
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00099251
    Molecular Formula:
    C8H8INO
    Molecular Weight:
    261.06
    Specification Sheet SDS
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