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Building Blocks

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

  • 8-Hydroxyjulolidine

    Grade:
    suitable for Hematology & Histology
    Purity:
    ≥ 97% (HPLC)
    Synonym:
    2,3,6,7-Tetrahydro-1H,5H-benzo[ij]quinolizin-8-ol
    Catalog Number:
    41887
    Grade:
    suitable for Hematology & Histology
    CAS Number:
    41175-50-2
    Purity Limit:
    ≥ 97% (HPLC)
    MDL NO:
    MFCD00006918
    Molecular Formula:
    C12H15NO
    Molecular Weight:
    189.25
    Specification Sheet SDS

  • 4-tert-Butylphthalic anhydride

    Grade:
    suitable for Hematology & Histology
    Purity:
    ≥ 98% (GC)
    Catalog Number:
    41874
    Grade:
    suitable for Hematology & Histology
    CAS Number:
    32703-79-0
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00060127
    Molecular Formula:
    C12H12O3
    Molecular Weight:
    204.22
    Specification Sheet SDS

  • 4-Nitroguaiacol

    Grade:
    suitable for Hematology & Histology
    Purity:
    ≥ 98% (GC)
    Synonym:
    2-Methoxy-4-nitrophenol
    Catalog Number:
    41867
    Grade:
    suitable for Hematology & Histology
    CAS Number:
    3251-56-7
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00012143
    Molecular Formula:
    C7H7NO4
    Molecular Weight:
    169.13
    Specification Sheet SDS

  • 3-Noradamantanecarboxylic acid

    Grade:
    suitable for Hematology & Histology
    Purity:
    ≥ 98% (GC)
    Catalog Number:
    41846
    Grade:
    suitable for Hematology & Histology
    CAS Number:
    16200-53-6
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00213463
    Molecular Formula:
    C10H14O2
    Molecular Weight:
    166.22
    Specification Sheet SDS

  • 3,5-Dinitroaniline

    Hazmat
    Grade:
    suitable for Hematology & Histology
    Purity:
    ≥ 98% (GC)
    Hazmat
    Catalog Number:
    41839
    Grade:
    suitable for Hematology & Histology
    CAS Number:
    618-87-1
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00007263
    Molecular Formula:
    C6H5N3O4
    Molecular Weight:
    183.12
    Specification Sheet SDS

  • 4-Methoxybiphenyl

    Grade:
    suitable for Hematology & Histology
    Synonym:
    4-Phenylanisole
    Catalog Number:
    41862
    Grade:
    suitable for Hematology & Histology
    CAS Number:
    613-37-6
    MDL NO:
    MFCD00014897
    Molecular Formula:
    C13H12O
    Molecular Weight:
    184.23
    Specification Sheet SDS

  • 3-Ethyl-2-methylbenzothiazolium iodide

    Grade:
    suitable for Hematology & Histology
    Purity:
    97 - 104% (Assay by titration)
    Catalog Number:
    41844
    Grade:
    suitable for Hematology & Histology
    CAS Number:
    3119-93-5
    Purity Limit:
    97 - 104% (Assay by titration)
    MDL NO:
    MFCD00044134
    Molecular Formula:
    C10H12INS
    Molecular Weight:
    305.18
    Specification Sheet SDS

  • 4,4′-Methylenebis(N,N-dimethylaniline)

    Hazmat
    Grade:
    suitable for Hematology & Histology
    Purity:
    ≥ 98% (GC)
    Synonym:
    N,N,N',N'-Tetramethyl-4,4'-diaminodiphenylmethane
    Hazmat
    Catalog Number:
    41850
    Grade:
    suitable for Hematology & Histology
    CAS Number:
    101-61-1
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00008317
    Molecular Formula:
    C17H22N2
    Molecular Weight:
    254.37
    Specification Sheet SDS

  • 4-(4-Isothiocyanatophenylazo)-N,N-dimethylaniline

    Grade:
    suitable for Hematology & Histology
    Purity:
    ≥ 96.5% (HPLC)
    Synonym:
    4-(Dimethylamino)azobenzene-4'-isothiocyanate
    Catalog Number:
    41855
    Grade:
    suitable for Hematology & Histology
    CAS Number:
    7612-98-8
    Purity Limit:
    ≥ 96.5% (HPLC)
    MDL NO:
    MFCD00004812
    Molecular Formula:
    C15H14N4S
    Molecular Weight:
    282.36
    Specification Sheet SDS

  • 3-Nitrophthalimide

    Grade:
    suitable for Hematology & Histology
    Purity:
    ≥ 96.5% (HPLC)
    Catalog Number:
    41845
    Grade:
    suitable for Hematology & Histology
    CAS Number:
    603-62-3
    Purity Limit:
    ≥ 96.5% (HPLC)
    MDL NO:
    MFCD00041852
    Molecular Formula:
    C8H4N2O4
    Molecular Weight:
    192.13
    Specification Sheet SDS

  • 2-Sulfobenzoic acid cyclic anhydride, suitable for Hematology & Histology

    Grade:
    Technical grade
    Purity:
    88 - 105% (Assay by titration)
    Synonym:
    2,1-Benzoxathiol-3-one-1,1-dioxide
    Catalog Number:
    41830
    Grade:
    Technical grade
    CAS Number:
    81-08-3
    Purity Limit:
    88 - 105% (Assay by titration)
    MDL NO:
    MFCD00005879
    Molecular Formula:
    C7H4O4S
    Molecular Weight:
    184.17
    Specification Sheet SDS

  • 3-Ethoxy-4-methoxybenzaldehyde

    Grade:
    suitable for Hematology & Histology
    Purity:
    ≥ 98.5% (GC)
    Synonym:
    3-Ethoxy-p-anisaldehyde
    Catalog Number:
    41843
    Grade:
    suitable for Hematology & Histology
    CAS Number:
    1131-52-8
    Purity Limit:
    ≥ 98.5% (GC)
    MDL NO:
    MFCD00010128
    Molecular Formula:
    C10H12O3
    Molecular Weight:
    180.2
    Specification Sheet SDS

  • 2-Chloro-6-nitrobenzaldehyde

    Purity:
    96 - 104% (Assay by titration)
    Catalog Number:
    41825
    CAS Number:
    6361-22-4
    Purity Limit:
    96 - 104% (Assay by titration)
    MDL NO:
    MFCD00007204
    Molecular Formula:
    C7H4ClNO3
    Molecular Weight:
    185.56
    Specification Sheet SDS

  • 2-Methyl-2-adamantanol

    Grade:
    suitable for Hematology & Histology
    Purity:
    ≥ 99% (GC)
    Catalog Number:
    41829
    Grade:
    suitable for Hematology & Histology
    CAS Number:
    702-98-7
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00074811
    Molecular Formula:
    C11H18O
    Molecular Weight:
    166.26
    Specification Sheet SDS

  • 2-Hydroxy-1,4-naphthoquinone

    Grade:
    suitable for Hematology & Histology
    Purity:
    ≥ 97% (HPLC)
    Synonym:
    Lawsone
    Catalog Number:
    41828
    Grade:
    suitable for Hematology & Histology
    CAS Number:
    83-72-7
    Purity Limit:
    ≥ 97% (HPLC)
    MDL NO:
    MFCD00001678
    Molecular Formula:
    C10H6O3
    Molecular Weight:
    174.15
    Specification Sheet SDS

  • 2-Chloro-5-methylaniline

    Hazmat
    Grade:
    suitable for Hematology & Histology
    Purity:
    ≥ 98.5% (GC)
    Synonym:
    6-Chloro-m-toluidine
    Hazmat
    Catalog Number:
    41824
    Grade:
    suitable for Hematology & Histology
    CAS Number:
    95-81-8
    Purity Limit:
    ≥ 98.5% (GC)
    MDL NO:
    MFCD00007674
    Molecular Formula:
    C7H8ClN
    Molecular Weight:
    141.6
    Specification Sheet SDS

  • 2-(5-Bromo-2-pyridylazo)-5-(diethylamino)phenol

    Grade:
    suitable for Hematology & Histology
    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Bromo-PADAP
    Catalog Number:
    41820
    Grade:
    suitable for Hematology & Histology
    CAS Number:
    14337-53-2
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00006255
    Molecular Formula:
    C15H17BrN4O
    Molecular Weight:
    349.23
    Specification Sheet SDS

  • 1-Aminoanthraquinone

    Grade:
    suitable for Hematology & Histology
    Purity:
    ≥ 96.5% (HPLC)
    Synonym:
    Azoic Diazo No. 36
    Catalog Number:
    41799
    Grade:
    suitable for Hematology & Histology
    CAS Number:
    82-45-1
    Purity Limit:
    ≥ 96.5% (HPLC)
    MDL NO:
    MFCD00001213
    Molecular Formula:
    C14H9NO2
    Molecular Weight:
    223.23
    Specification Sheet SDS

  • 1-(Methylamino)anthraquinone

    Grade:
    suitable for Hematology & Histology
    Purity:
    ≥ 98% (HPLC)
    Catalog Number:
    41798
    Grade:
    suitable for Hematology & Histology
    CAS Number:
    82-38-2
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00001197
    Molecular Formula:
    C15H11NO2
    Molecular Weight:
    237.25
    Specification Sheet SDS

  • 2,3,6,7-Tetrahydro-8-hydroxy-1H,5H-benzo[ij]quinolizine-9-carboxaldehyde

    Grade:
    suitable for Hematology & Histology
    Purity:
    ≥ 97.5% (GC)
    Synonym:
    9-Formyl-8-hydroxyjulolidine
    Catalog Number:
    41808
    Grade:
    suitable for Hematology & Histology
    CAS Number:
    63149-33-7
    Purity Limit:
    ≥ 97.5% (GC)
    MDL NO:
    MFCD00192477
    Molecular Formula:
    C13H15NO2
    Molecular Weight:
    217.26
    Specification Sheet SDS

  • 1,3-Diphenylacetone p-tosylhydrazone

    Grade:
    suitable for Hematology & Histology
    Purity:
    ≥ 98% (HPLC)
    Synonym:
    1,3-Diphenyl-2-propanone p-tosylhydrazone
    Catalog Number:
    41792
    Grade:
    suitable for Hematology & Histology
    CAS Number:
    19816-88-7
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00009645
    Molecular Formula:
    C22H22N2O2S
    Molecular Weight:
    378.49
    Specification Sheet SDS

  • Phenylthiohydantoin-isoleucine (contains PTH-alloisoleucine)

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    5-sec-Butyl-3-phenyl-2-thiohydantoin (contains PTH-alloisoleucine)
    Catalog Number:
    41756
    CAS Number:
    5066-94-4
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00057213
    Molecular Formula:
    C13H16N2OS
    Molecular Weight:
    248.34
    Specification Sheet SDS

  • Meglumine diatrizoate, suitable for Hematology & Histology

    Grade:
    meets USP testing specifications
    Purity:
    98 - 102% (Assay)
    Synonym:
    N-Methyl-D-glucamine diatrizoate
    Catalog Number:
    41769
    Grade:
    meets USP testing specifications
    CAS Number:
    131-49-7
    Purity Limit:
    98 - 102% (Assay)
    MDL NO:
    MFCD00069632
    Molecular Formula:
    C7H17NO5·C11H9I3N2O4
    Molecular Weight:
    809.13
    Specification Sheet SDS

  • Phenylthiohydantoin-proline

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    PTH-proline
    Catalog Number:
    41764
    CAS Number:
    4333-21-5
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00056895
    Molecular Formula:
    C12H12N2OS
    Molecular Weight:
    232.3
    Specification Sheet SDS

  • Phenylthiohydantoin-arginine hydrochloride

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    5-(3-Guanidinopropyl)-3-phenyl-2-thiohydantoin hydrochloride
    Catalog Number:
    41763
    CAS Number:
    182153-75-9
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00060177
    Molecular Formula:
    C13H17N5OS·HCl
    Molecular Weight:
    327.83
    Specification Sheet SDS

  • Phenylthiohydantoin-(Ne-phenylthiocarbamyl)-lysine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    PTH-(Ne-PTC)-lysine
    Catalog Number:
    41757
    CAS Number:
    29635-94-7
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00151476
    Molecular Formula:
    C20H22N4OS2
    Molecular Weight:
    398.54
    Specification Sheet SDS

  • Phenylthiohydantoin-valine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    5-Isopropyl-3-phenyl-2-thiohydantoin
    Catalog Number:
    41758
    CAS Number:
    4333-20-4
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD06858300
    Molecular Formula:
    C12H14N2OS
    Molecular Weight:
    234.32
    Specification Sheet SDS

  • Phenylthiohydantoin methionine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    5-[2-(Methylthio)ethyl]-3-phenyl-2-thiohydantoin
    Catalog Number:
    41765
    CAS Number:
    4370-90-5
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD06858379
    Molecular Formula:
    C12H14N2OS2
    Molecular Weight:
    266.38
    Specification Sheet SDS

  • Phenylthiohydantoin-glycine

    Hazmat
    Purity:
    ≥ 98% (HPLC)
    Synonym:
    3-Phenyl-2-thiohydantoin
    Hazmat
    Catalog Number:
    41761
    CAS Number:
    2010-15-3
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00027413
    Molecular Formula:
    C9H8N2OS
    Molecular Weight:
    192.24
    Specification Sheet SDS

  • Phenylthiohydantoin-aspartic acid

    Purity:
    ≥ 95% (Assay by titration)
    Synonym:
    3-Phenyl-2-thiohydantoin-5-acetic acid
    Catalog Number:
    41759
    CAS Number:
    5624-13-5
    Purity Limit:
    ≥ 95% (Assay by titration)
    MDL NO:
    MFCD01076622
    Molecular Formula:
    C11H10N2O3S
    Molecular Weight:
    250.27
    Specification Sheet SDS

  • Phenylthiohydantoin-D-threonine

    Purity:
    ≥ 90% (HPLC)
    Synonym:
    5-Ethylidene-3-phenyl-2-thiohydantoin
    Catalog Number:
    41762
    CAS Number:
    5800-50-0
    Purity Limit:
    ≥ 90% (HPLC)
    MDL NO:
    MFCD00070617
    Molecular Formula:
    C11H10N2OS
    Molecular Weight:
    218.27
    Specification Sheet SDS

  • Phenylthiohydantoin-tryptophan

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    5-(3-Indolylmethyl)-3-phenyl-2-thiohydantoin
    Catalog Number:
    41760
    CAS Number:
    5789-24-2
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD06858416
    Molecular Formula:
    C18H15N3OS
    Molecular Weight:
    321.4
    Specification Sheet SDS

  • Phenylthiohydantoin-phenylalanine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    5-Benzyl-3-phenyl-2-thiohydantoin
    Catalog Number:
    41751
    CAS Number:
    4332-97-2
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD01076623
    Molecular Formula:
    C16H14N2OS
    Molecular Weight:
    282.36
    Specification Sheet SDS

  • Phenylthiohydantoin-tyrosine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    5-(4-Hydroxybenzyl)-3-phenyl-2-thiohydantoin
    Catalog Number:
    41755
    CAS Number:
    4332-95-0
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00027415
    Molecular Formula:
    C16H14N2O2S
    Molecular Weight:
    298.36
    Specification Sheet SDS

  • Phenylthiohydantoin-glutamic acid

    Purity:
    ≥ 95% (HPLC)
    Synonym:
    3-Phenyl-2-thiohydantoin-5-propionic acid
    Catalog Number:
    41752
    CAS Number:
    5624-27-1
    Purity Limit:
    ≥ 95% (HPLC)
    MDL NO:
    MFCD00070137
    Molecular Formula:
    C12H12N2O3S
    Molecular Weight:
    264.3
    Specification Sheet SDS

  • Phenylthiohydantoin-norleucine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    5-Butyl-3-phenyl-2-thiohydantoin
    Catalog Number:
    41753
    CAS Number:
    4333-22-6
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00038437
    Molecular Formula:
    C13H16N2OS
    Molecular Weight:
    248.34
    Specification Sheet SDS

  • Pentaethylene glycol

    Purity:
    ≥ 98% (GC)
    Synonym:
    3,6,9,12-Tetraoxatetradecane-1,14-diol
    Catalog Number:
    41728
    CAS Number:
    4792-15-8
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00002878
    Molecular Formula:
    C10H22O6
    Molecular Weight:
    238.28
    Specification Sheet SDS

  • [2-(2-Methoxyethoxy)ethoxy]acetic acid

    Hazmat
    Purity:
    ≥ 95% (GC)
    Synonym:
    3,6,9-Trioxadecanoic acid
    Hazmat
    Catalog Number:
    41714
    CAS Number:
    16024-58-1
    Purity Limit:
    ≥ 95% (GC)
    MDL NO:
    MFCD00044098
    Molecular Formula:
    C7H14O5
    Molecular Weight:
    178.18
    Specification Sheet SDS

  • Hexaethylene glycol monomethyl ether

    Purity:
    ≥ 97% (GC)
    Synonym:
    mPEG6-Alcohol
    Catalog Number:
    41733
    CAS Number:
    23601-40-3
    Purity Limit:
    ≥ 97% (GC)
    MDL NO:
    MFCD00045996
    Molecular Formula:
    C13H28O7
    Molecular Weight:
    296.36
    Specification Sheet SDS

  • Tetraethylene glycol monomethyl ether

    Purity:
    ≥ 99% (GC)
    Synonym:
    Methyl tetraglycol
    Catalog Number:
    41736
    CAS Number:
    23783-42-8
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00041756
    Molecular Formula:
    C9H20O5
    Molecular Weight:
    208.25
    Specification Sheet SDS

  • Triethylene glycol monoethyl ether

    Purity:
    ≥ 90% (GC)
    Synonym:
    Tri(ethylene glycol) monoethyl ether
    Catalog Number:
    41738
    CAS Number:
    112-50-5
    Purity Limit:
    ≥ 90% (GC)
    MDL NO:
    MFCD00020605
    Molecular Formula:
    C8H18O4
    Molecular Weight:
    178.23
    Specification Sheet SDS

  • Tetraethylene glycol

    Purity:
    ≥ 99%
    Synonym:
    Tetraglycol
    Catalog Number:
    41739
    CAS Number:
    112-60-7
    Purity Limit:
    ≥ 99%
    MDL NO:
    MFCD00002879
    Molecular Formula:
    C8H18O5
    Molecular Weight:
    194.23
    Specification Sheet SDS

  • Triethylene glycol monomethyl ether

    Purity:
    ≥ 98% (GC)
    Synonym:
    Methyl triglycol
    Catalog Number:
    41745
    CAS Number:
    112-35-6
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00002875
    Molecular Formula:
    C7H16O4
    Molecular Weight:
    164.2
    Specification Sheet SDS

  • Heptaethylene glycol

    Purity:
    ≥ 98% (GC)
    Synonym:
    HO-PEG7-OH
    Catalog Number:
    41732
    CAS Number:
    5617-32-3
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00002876
    Molecular Formula:
    C14H30O8
    Molecular Weight:
    326.39
    Specification Sheet SDS

  • Diethylene glycol bis(2-chloroethyl) ether

    Hazmat
    Purity:
    ≥ 97% (GC)
    Synonym:
    Bis[2-(2-chloroethoxy)ethyl] ether
    Hazmat
    Catalog Number:
    41711
    CAS Number:
    638-56-2
    Purity Limit:
    ≥ 97% (GC)
    MDL NO:
    MFCD00054473
    Molecular Formula:
    C8H16Cl2O3
    Molecular Weight:
    231.11
    Specification Sheet SDS

  • Pentaethylene glycol monomethyl ether

    Purity:
    ≥ 96% (GC)
    Synonym:
    mPEG5-Alcohol
    Catalog Number:
    41726
    CAS Number:
    23778-52-1
    Purity Limit:
    ≥ 96% (GC)
    MDL NO:
    MFCD00045995
    Molecular Formula:
    C11H24O6
    Molecular Weight:
    252.31
    Specification Sheet SDS

  • Diethylene glycol 2-bromoethyl methyl ether

    Purity:
    ≥ 97% (GC)
    Synonym:
    2-[2-(2-Methoxyethoxy)ethoxy]ethyl bromide
    Catalog Number:
    41722
    CAS Number:
    72593-77-2
    Purity Limit:
    ≥ 97% (GC)
    MDL NO:
    MFCD00956116
    Molecular Formula:
    C7H15BrO3
    Molecular Weight:
    227.1
    Specification Sheet SDS

  • 1-Bromo-2-(2-methoxyethoxy)ethane (stabilized with Na2CO3)

    Hazmat
    Purity:
    ≥ 95% (GC)
    Synonym:
    2-(2-Methoxyethoxy)ethyl bromide (stabilized with Na2CO3)
    Hazmat
    Catalog Number:
    41709
    CAS Number:
    54149-17-6
    Purity Limit:
    ≥ 95% (GC)
    MDL NO:
    MFCD00000238
    Molecular Formula:
    C5H11BrO2
    Molecular Weight:
    183.05
    Specification Sheet SDS

  • 3,6,9,12-Tetraoxatridecanamine

    Purity:
    ≥ 97% (NMR)
    Synonym:
    Methyl-PEG4-amine
    Catalog Number:
    41708
    CAS Number:
    85030-56-4
    Purity Limit:
    ≥ 97% (NMR)
    MDL NO:
    MFCD11041099
    Molecular Formula:
    C9H21NO4
    Molecular Weight:
    207.27
    Specification Sheet SDS

  • Triethylene glycol divinyl ether (stabilized with KOH)

    Purity:
    ≥ 98% (GC)
    Synonym:
    Tri(ethylene glycol) divinyl ether
    Catalog Number:
    41712
    CAS Number:
    765-12-8
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00074891
    Molecular Formula:
    C10H18O4
    Molecular Weight:
    202.25
    Specification Sheet SDS
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