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Building Blocks

7871
Sub Categories
Fluorinated Building Blocks 1631
Heterocyclic Building Blocks 3724
Non-Heterocyclic Building Blocks 2575

  • 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

  • 4-Nitrobenzenesulfonyl chloride

    Hazmat
    Purity:
    ≥ 99% (GC)
    Hazmat
    Catalog Number:
    24529
    CAS Number:
    98-74-8
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00007445
    Molecular Formula:
    C6H4ClNO4S
    Molecular Weight:
    221.62
    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

  • 3,5-Dinitrobenzoic acid

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    3-Carboxy-1,5-dinitrobenzene
    Catalog Number:
    24527
    CAS Number:
    99-34-3
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00007253
    Molecular Formula:
    C7H4N2O6
    Molecular Weight:
    212.12
    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

  • Phenyl isothiocyanate

    Hazmat
    Purity:
    ≥ 99% (GC)
    Hazmat
    Catalog Number:
    24479
    CAS Number:
    103-72-0
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00004798
    Molecular Formula:
    C7H5NS
    Molecular Weight:
    135.19
    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

  • N-Methylbenzylamine

    Hazmat
    Purity:
    ≥ 99% (GC)
    Hazmat
    Catalog Number:
    23236
    CAS Number:
    103-67-3
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00008289
    Molecular Formula:
    C8H11N
    Molecular Weight:
    121.18
    Specification Sheet SDS

  • 4-Benzylpiperidine

    Purity:
    ≥ 99% (GC)
    Synonym:
    4-(Phenylmethyl)piperidine
    Catalog Number:
    23231
    CAS Number:
    31252-42-3
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00006006
    Molecular Formula:
    C12H17N
    Molecular Weight:
    175.27
    Specification Sheet SDS

  • 2-(Trimethylsilyl)ethanol

    Hazmat
    Purity:
    ≥ 98% (GC)
    Synonym:
    (2-Hydroxyethyl)trimethylsilane
    Hazmat
    Catalog Number:
    23185
    CAS Number:
    2916-68-9
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00002825
    Molecular Formula:
    C5H14OSi
    Molecular Weight:
    118.25
    Specification Sheet SDS

  • 3-Maleimidopropionic acid NHS

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    BMPS
    Catalog Number:
    23010
    CAS Number:
    55750-62-4
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00043141
    Molecular Formula:
    C11H10N2O6
    Molecular Weight:
    266.21
    Specification Sheet SDS

  • Sodium diphenylaminesulfonate

    Grade:
    ACS reagent
    Synonym:
    4-(Phenylamino)benzenesulfonic acid sodium salt
    Catalog Number:
    22969
    Grade:
    ACS reagent
    CAS Number:
    6152-67-6
    MDL NO:
    MFCD00036468
    Molecular Formula:
    C12H10NO3SNa
    Molecular Weight:
    271.27
    Specification Sheet SDS

  • Barium diphenylamine sulfonate

    Grade:
    ACS reagent
    Synonym:
    4-(Phenylamino)benzenesulfonic acid barium salt
    Catalog Number:
    22970
    Grade:
    ACS reagent
    CAS Number:
    6211-24-1
    MDL NO:
    MFCD00007497
    Molecular Formula:
    C12H10NO3S)2Ba
    Molecular Weight:
    633.89
    Specification Sheet SDS

  • Biuret

    Purity:
    ≥ 97% (Assay)
    Synonym:
    Allophanic acid amide
    Catalog Number:
    22844
    CAS Number:
    108-19-0
    Purity Limit:
    ≥ 97% (Assay)
    MDL NO:
    MFCD00007946
    Molecular Formula:
    C2H5N3O2
    Molecular Weight:
    103.08
    Specification Sheet SDS

  • 1-Pentanesulfonic acid sodium salt anhydrous, suitable for Ion-Pair Chromatography

    Purity:
    ≥ 98% (Assay)
    Synonym:
    Sodium 1-pentanesulfonate
    Catalog Number:
    22839
    CAS Number:
    22767-49-3
    Purity Limit:
    ≥ 98% (Assay)
    MDL NO:
    MFCD00007541
    Molecular Formula:
    C5H11O3SNa
    Molecular Weight:
    174.2
    Specification Sheet SDS

  • 1-Butanesulfonic acid sodium salt , suitable for Ion-Pair Chromatography

    Purity:
    ≥ 99% (Titration: anhydrous basis)
    Synonym:
    Sodium 1-butanesulfonate
    Catalog Number:
    22838
    CAS Number:
    2386-54-1
    Purity Limit:
    ≥ 99% (Titration: anhydrous basis)
    MDL NO:
    MFCD00007540
    Molecular Formula:
    C4H9O3SNa
    Molecular Weight:
    160.17
    Specification Sheet SDS

  • 1-Amino-2-naphthol-4-sulfonic acid

    Purity:
    ≥ 99% (Assay)
    Synonym:
    2-Hydroxy-4-sulfo-1-naphthylamine
    Catalog Number:
    22805
    CAS Number:
    116-63-2
    Purity Limit:
    ≥ 99% (Assay)
    MDL NO:
    MFCD00004019
    Molecular Formula:
    C10H9NO4S
    Molecular Weight:
    239.25
    Specification Sheet SDS

  • N-Methyldiethylamine

    Hazmat
    Purity:
    ≥ 99% (GC)
    Hazmat
    Catalog Number:
    22533
    CAS Number:
    616-39-7
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00009049
    Molecular Formula:
    CH3N(C2H5)2
    Molecular Weight:
    87.16
    Specification Sheet SDS

  • α-Phenyllactic acid

    Purity:
    ≥ 99.5% (Assay by titration)
    Synonym:
    2-Hydroxy-2-phenylpropanoic acid
    Catalog Number:
    22474
    CAS Number:
    515-30-0
    Purity Limit:
    ≥ 99.5% (Assay by titration)
    MDL NO:
    MFCD00004451
    Molecular Formula:
    C6H5C(CH3)(OH)CO2H·0.5H2O
    Molecular Weight:
    175.18
    Specification Sheet SDS

  • 3-Cyclohexene carboxylic acid

    Hazmat
    Purity:
    ≥ 99% (GC)
    Hazmat
    Catalog Number:
    22460
    CAS Number:
    4771-80-6
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00013781
    Molecular Formula:
    C6H10CO2H
    Molecular Weight:
    126.15
    Specification Sheet SDS

  • Behenic acid

    Purity:
    ≥ 95% (GC)
    Synonym:
    Docosanoic acid
    Catalog Number:
    22283
    CAS Number:
    112-85-6
    Purity Limit:
    ≥ 95% (GC)
    MDL NO:
    MFCD00002807
    Molecular Formula:
    C22H44O2
    Molecular Weight:
    340.59
    Specification Sheet SDS

  • 2,3-Dimethylindole

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    2,3-Dimethyl-1H-indole
    Catalog Number:
    22059
    CAS Number:
    91-55-4
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00005617
    Molecular Formula:
    C10H11N
    Molecular Weight:
    145.2
    Specification Sheet SDS

  • Aminoacetaldehyde dimethyl acetal

    Hazmat
    Purity:
    ≥ 99% (Assay)
    Synonym:
    1-Amino-2,2-dimethoxyethane
    Hazmat
    Catalog Number:
    21988
    CAS Number:
    22483-09-6
    Purity Limit:
    ≥ 99% (Assay)
    MDL NO:
    MFCD00008135
    Molecular Formula:
    C4H11NO2
    Molecular Weight:
    105.14
    Specification Sheet SDS

  • Suberic acid

    Purity:
    ≥ 99% (GC)
    Synonym:
    1,6-Hexanedicarboxylic acid
    Catalog Number:
    21945
    CAS Number:
    505-48-6
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00004428
    Molecular Formula:
    C8H14O4
    Molecular Weight:
    174.2
    Specification Sheet SDS
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