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Building Blocks

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

  • 2,3-Dimethylmaleic anhydride

    Purity:
    ≥ 99% (GC)
    Synonym:
    3,4-Dimethyl-2,5-dihydrofuran-2,5-dione
    Catalog Number:
    16567
    CAS Number:
    766-39-2
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00005523
    Molecular Formula:
    C6H6O3
    Molecular Weight:
    126.11
    Specification Sheet SDS

  • 5-Amino-1-pentanol

    Hazmat
    Purity:
    ≥ 97% (GC)
    Synonym:
    5-Amino-N-amyl alcohol
    Hazmat
    Catalog Number:
    15142
    CAS Number:
    2508-29-4
    Purity Limit:
    ≥ 97% (GC)
    MDL NO:
    MFCD00008237
    Molecular Formula:
    C5H13NO
    Molecular Weight:
    103.17
    Specification Sheet SDS

  • 3-Aminopropanol

    Hazmat
    Purity:
    ≥ 99% (GC)
    Synonym:
    ^-Alaninol
    Hazmat
    Catalog Number:
    15138
    CAS Number:
    156-87-6
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00008223
    Molecular Formula:
    C3H9NO
    Molecular Weight:
    75.11
    Specification Sheet SDS

  • Diphenyl diselenide

    Hazmat
    Purity:
    ≥ 99% (GC)
    Synonym:
    Phenyl diselenide
    Hazmat
    Catalog Number:
    14373
    CAS Number:
    1666-13-3
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00003001
    Molecular Formula:
    C12H10Se2
    Molecular Weight:
    312.13
    Specification Sheet SDS

  • 4-Nitroaniline

    Hazmat
    Purity:
    ≥ 99% (GC)
    Synonym:
    p-Aminonitrobenzene
    Hazmat
    Catalog Number:
    14327
    CAS Number:
    100-01-6
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00007858
    Molecular Formula:
    C6H6N2O2
    Molecular Weight:
    138.12
    Specification Sheet SDS

  • α-Hydroxyisobutyric acid

    Purity:
    ≥ 98% (Assay)
    Synonym:
    2-Hydroxy-2-methylpropionic acid
    Catalog Number:
    14074
    CAS Number:
    594-61-6
    Purity Limit:
    ≥ 98% (Assay)
    MDL NO:
    MFCD00004459
    Molecular Formula:
    C4H8O3
    Molecular Weight:
    104.1
    Specification Sheet SDS

  • 2-Bromomethyl acetate

    Hazmat
    Purity:
    ≥ 99% (GC)
    Synonym:
    Methyl bromoacetate
    Hazmat
    Catalog Number:
    14023
    CAS Number:
    96-32-2
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00000189
    Molecular Formula:
    C3H5BrO2
    Molecular Weight:
    152.98
    Specification Sheet SDS

  • 2-Methoxybenzyl alcohol

    Purity:
    ≥ 99% (GC)
    Synonym:
    o-Anisyl alcohol
    Catalog Number:
    14050
    CAS Number:
    612-16-8
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00004611
    Molecular Formula:
    C8H10O2
    Molecular Weight:
    138.17
    Specification Sheet SDS

  • Bromotriphenylmethane

    Hazmat
    Purity:
    ≥ 98% (Assay by titration)
    Synonym:
    Trityl bromide
    Hazmat
    Catalog Number:
    12944
    CAS Number:
    596-43-0
    Purity Limit:
    ≥ 98% (Assay by titration)
    MDL NO:
    MFCD00000120
    Molecular Formula:
    C19H15Br
    Molecular Weight:
    323.23
    Specification Sheet SDS

  • N,N'-Di-tert-butylcarbodiimide

    Hazmat
    Purity:
    ≥ 98% (GC)
    Hazmat
    Catalog Number:
    12908
    CAS Number:
    691-24-7
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00010231
    Molecular Formula:
    C9H18N2
    Molecular Weight:
    154.26
    Specification Sheet SDS

  • 1,3-Dimethyl-2-imidazolidinone

    Purity:
    ≥ 99% (GC)
    Synonym:
    N,N'-Dimethyl-ethylene-urea
    Catalog Number:
    12724
    CAS Number:
    80-73-9
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00003188
    Molecular Formula:
    C5H10N2O
    Molecular Weight:
    114.15
    Specification Sheet SDS

  • Dibenzyl-N,N-diisopropylphosphoramidite

    Purity:
    ≥ 95%
    Catalog Number:
    12547
    CAS Number:
    108549-23-1
    Purity Limit:
    ≥ 95%
    MDL NO:
    MFCD00191988
    Molecular Formula:
    C20H28NO2P
    Molecular Weight:
    345.43
    Specification Sheet SDS

  • 3-(Tritylthio)propionic acid

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    S-Trityl-β-mercaptopropionic acid
    Catalog Number:
    09992
    CAS Number:
    27144-18-9
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00237291
    Molecular Formula:
    C22H20O2S
    Molecular Weight:
    348.47
    Specification Sheet SDS

  • Boc-(4-hydroxy)piperidine

    Purity:
    ≥ 99% (Assay)
    Synonym:
    1-Boc-4-piperidinol
    Catalog Number:
    07364
    CAS Number:
    109384-19-2
    Purity Limit:
    ≥ 99% (Assay)
    MDL NO:
    MFCD01075174
    Molecular Formula:
    C10H19NO3
    Molecular Weight:
    201.27
    Specification Sheet SDS

  • Boc-tranexamic acid

    Purity:
    ≥ 97% (HPLC)
    Synonym:
    Boc-trans-4-(aminomethyl)cyclohexane-1-carboxylic acid
    Catalog Number:
    07351
    CAS Number:
    27687-14-5
    Purity Limit:
    ≥ 97% (HPLC)
    MDL NO:
    MFCD00673773
    Molecular Formula:
    C13H23NO4
    Molecular Weight:
    257.32
    Specification Sheet SDS

  • Boc-4-aminomethylcyclohexane carboxylic acid

    Purity:
    ≥ 98% (NMR)
    Synonym:
    Boc-4-Amc-OH
    Catalog Number:
    07121
    CAS Number:
    162046-58-4
    Purity Limit:
    ≥ 98% (NMR)
    MDL NO:
    MFCD01862289
    Molecular Formula:
    C13H23NO4
    Molecular Weight:
    257.27
    Specification Sheet SDS

  • 2-Picolyl chloride hydrochloride

    Hazmat
    Purity:
    ≥ 98% (HPLC)
    Synonym:
    2-(Chloromethyl)pyridine hydrochloride
    Hazmat
    Catalog Number:
    06927
    CAS Number:
    6959-47-3
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00012811
    Molecular Formula:
    C6H6NCl·HCl
    Molecular Weight:
    164.04
    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:
    162.24
    Specification Sheet SDS

  • P-Chlorodiphenylphosphine

    Hazmat
    Purity:
    ≥ 98% (GC)
    Synonym:
    Diphenyl chlorophosphine
    Hazmat
    Catalog Number:
    06895
    CAS Number:
    1079-66-9
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00000529
    Molecular Formula:
    C12H10ClP
    Molecular Weight:
    220.64
    Specification Sheet SDS

  • Trimethyl orthoformate

    Hazmat
    Purity:
    ≥ 99% (GC)
    Synonym:
    Orthoformic acid trimethyl ester
    Hazmat
    Catalog Number:
    04903
    CAS Number:
    149-73-5
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00008483
    Molecular Formula:
    C4H10O3
    Molecular Weight:
    106.12
    Specification Sheet SDS

  • 4-Iodobenzoic acid

    Purity:
    ≥ 99% (Assay by titration)
    Synonym:
    p-Iodobenzoic acid
    Catalog Number:
    04894
    CAS Number:
    619-58-9
    Purity Limit:
    ≥ 99% (Assay by titration)
    MDL NO:
    MFCD00002533
    Molecular Formula:
    C7H5O2I
    Molecular Weight:
    248.02
    Specification Sheet SDS

  • Pentafluorophenyl trifluoroacetate

    Hazmat
    Purity:
    ≥ 99% (GC)
    Synonym:
    Trifluoroacetic acid pentafluorophenyl ester
    Hazmat
    Catalog Number:
    04899
    CAS Number:
    14533-84-7
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00134438
    Molecular Formula:
    C8F8O2
    Molecular Weight:
    280.08
    Specification Sheet SDS

  • Acetyl chloride

    Hazmat
    Purity:
    ≥ 99% (GC)
    Hazmat
    Catalog Number:
    04787
    CAS Number:
    75-36-5
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00000719
    Molecular Formula:
    C2H3ClO
    Molecular Weight:
    78.5
    Specification Sheet SDS

  • 4-Aminobenzamidine dihydrochloride

    Purity:
    ≥ 99% (Assay)
    Synonym:
    p-Aminobenzamidine 2HCl
    Catalog Number:
    03291
    CAS Number:
    2498-50-2
    Purity Limit:
    ≥ 99% (Assay)
    MDL NO:
    MFCD00013001
    Molecular Formula:
    C7H9N3·2HCl
    Molecular Weight:
    208.09
    Specification Sheet SDS

  • Fmoc-glycinol

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    2-(Fmoc-amino)-ethanol
    Catalog Number:
    03189
    CAS Number:
    105496-31-9
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00235927
    Molecular Formula:
    C17H17NO3
    Molecular Weight:
    283.3
    Specification Sheet SDS

  • 2,4,5-Trichlorophenol

    Hazmat
    Purity:
    ≥ 95% (GC)
    Synonym:
    2,4,5-Trichloro-1-hydroxy-benzene
    Hazmat
    Catalog Number:
    02361
    CAS Number:
    95-95-4
    Purity Limit:
    ≥ 95% (GC)
    MDL NO:
    MFCD00002170
    Molecular Formula:
    C6H3Cl3O
    Molecular Weight:
    197.45
    Specification Sheet SDS

  • 1H-Pyrazole

    Purity:
    ≥ 98% (GC)
    Synonym:
    1,2-Diazole
    Catalog Number:
    02354
    CAS Number:
    288-13-1
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00005234
    Molecular Formula:
    C3H4N2
    Molecular Weight:
    68.08
    Specification Sheet SDS

  • 2-Nitrophenol

    Hazmat
    Purity:
    ≥ 98% (GC)
    Synonym:
    2-Hydroxynitrobenzene
    Hazmat
    Catalog Number:
    02339
    CAS Number:
    88-75-5
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00011688
    Molecular Formula:
    C6H5NO3
    Molecular Weight:
    139.11
    Specification Sheet SDS

  • 1-Acetylimidazole

    Purity:
    ≥ 98% (Titration)
    Catalog Number:
    02273
    CAS Number:
    2466-76-4
    Purity Limit:
    ≥ 98% (Titration)
    MDL NO:
    MFCD00005287
    Molecular Formula:
    C5H6N2O
    Molecular Weight:
    110.1
    Specification Sheet SDS

  • 2-Imidazolidone

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    N,N'-Ethyleneurea
    Catalog Number:
    01974
    CAS Number:
    120-93-4
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00005257
    Molecular Formula:
    C3H6N2O
    Molecular Weight:
    86.09
    Specification Sheet SDS

  • 1,5-Pentanediol

    Purity:
    ≥ 98% (GC)
    Synonym:
    Pentamethylene glycol
    Catalog Number:
    01575
    CAS Number:
    111-29-5
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00002978
    Molecular Formula:
    C5H12O2
    Molecular Weight:
    104.15
    Specification Sheet SDS

  • N,N,N,N-Tetramethyl-p-phenylenediamine dihydrochloride

    Purity:
    ≥ 99% (Titration)
    Synonym:
    Wurster's Reagent dihydrochloride
    Catalog Number:
    01567
    CAS Number:
    637-01-4
    Purity Limit:
    ≥ 99% (Titration)
    MDL NO:
    MFCD00012482
    Molecular Formula:
    C10H16N2·2HCl
    Molecular Weight:
    237.2
    Specification Sheet SDS

  • Sorbic acid

    Grade:
    FCC/Kosher
    Purity:
    ≥ 99% (Assay, dry basis)
    Synonym:
    2,4-Hexadienoic acid
    Catalog Number:
    01526
    Grade:
    FCC/Kosher
    CAS Number:
    110-44-1
    Purity Limit:
    ≥ 99% (Assay, dry basis)
    MDL NO:
    MFCD00002703
    Molecular Formula:
    C6H8O2
    Molecular Weight:
    112.13
    Specification Sheet SDS

  • Ammonium acetate

    Grade:
    ACS reagent
    Purity:
    ≥ 97% (Assay by titration)
    Catalog Number:
    00594
    Grade:
    ACS reagent
    CAS Number:
    631-61-8
    Purity Limit:
    ≥ 97% (Assay by titration)
    MDL NO:
    MFCD00013066
    Molecular Formula:
    NH4CH3CO2
    Molecular Weight:
    77.08
    Specification Sheet SDS

  • Phenylphosphate disodium salt dihydrate

    Purity:
    ≥ 99% (Assay, HPLC)
    Synonym:
    Disodium phenyl phosphate dihydrate
    Catalog Number:
    01487
    CAS Number:
    3279-54-7, 66778-08-3
    Purity Limit:
    ≥ 99% (Assay, HPLC)
    MDL NO:
    MFCD00149080
    Molecular Formula:
    C6H5Na2O4P·2H2O
    Molecular Weight:
    254.1
    Specification Sheet SDS

  • 1,3-Diphenylurea

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    N,N'-Diphenylurea (sym.)
    Catalog Number:
    01473
    CAS Number:
    102-07-8
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00003017
    Molecular Formula:
    C13H12N2O
    Molecular Weight:
    212.25
    Specification Sheet SDS

  • Choline dihydrogencitrate salt

    Purity:
    ≥ 99% (Assay by titration on dry basis)
    Synonym:
    (2-Hydroxyethyl)trimethylammonium citrate
    Catalog Number:
    01440
    CAS Number:
    77-91-8
    Purity Limit:
    ≥ 99% (Assay by titration on dry basis)
    MDL NO:
    MFCD00038734
    Molecular Formula:
    C11H21NO8
    Molecular Weight:
    295.3
    Specification Sheet SDS

  • Glycine amide hydrochloride

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Gly-NH2·HCl
    Catalog Number:
    01302
    CAS Number:
    1668-10-6
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00013008
    Molecular Formula:
    C2H6N2O·HCl
    Molecular Weight:
    110.5
    Specification Sheet SDS

  • Sodium maleate dibasic anhydrous

    Purity:
    ≥ 99% (Assay by titration)
    Synonym:
    Maleic acid disodium salt
    Catalog Number:
    01182
    CAS Number:
    371-47-1
    Purity Limit:
    ≥ 99% (Assay by titration)
    MDL NO:
    MFCD00013059
    Molecular Formula:
    C4H2O4Na2
    Molecular Weight:
    160.0
    Specification Sheet SDS

  • Isatin

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    2,3-Indolinedione
    Catalog Number:
    00851
    CAS Number:
    91-56-5
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00005718
    Molecular Formula:
    C8H5NO2
    Molecular Weight:
    147.13
    Specification Sheet SDS

  • 2,4,6-Triisopropylbenzenesulfonyl chloride

    Hazmat
    Purity:
    ≥ 99% (Titration)
    Synonym:
    Trisyl chloride
    Hazmat
    Catalog Number:
    00923
    CAS Number:
    6553-96-4
    Purity Limit:
    ≥ 99% (Titration)
    MDL NO:
    MFCD00007433
    Molecular Formula:
    C15H23SO2Cl
    Molecular Weight:
    302.9
    Specification Sheet SDS

  • 6-Chloroguanine

    Purity:
    ≥ 99.0% (Assay)
    Synonym:
    2-Amino-6-chloropurine
    Catalog Number:
    00569
    CAS Number:
    10310-21-1
    Purity Limit:
    ≥ 99.0% (Assay)
    MDL NO:
    MFCD00075252
    Molecular Formula:
    C5H4ClN5
    Molecular Weight:
    169.58
    Specification Sheet SDS

  • 1-Thioglycerol

    Hazmat
    Purity:
    ≥ 98% (GC)
    Synonym:
    3-Mercapto-1,2-propanediol
    Hazmat
    Catalog Number:
    00691
    CAS Number:
    96-27-5
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00004879
    Molecular Formula:
    C3H8O2S
    Molecular Weight:
    108.16
    Specification Sheet SDS

  • 4-Methoxybenzyl alcohol

    Purity:
    ≥ 99% (GC)
    Synonym:
    p-Anisyl alcohol
    Catalog Number:
    00699
    CAS Number:
    105-13-5
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00004653
    Molecular Formula:
    C8H10O2
    Molecular Weight:
    138.17
    Specification Sheet SDS

  • Benzoic acid

    Hazmat
    Grade:
    Meets USP/NF specification
    Purity:
    99.5 - 100.5% (Assay on anhydrous basis)
    Synonym:
    Benzene carboxylic acid
    Hazmat
    Catalog Number:
    00477
    Grade:
    Meets USP/NF specification
    CAS Number:
    65-85-0
    Purity Limit:
    99.5 - 100.5% (Assay on anhydrous basis)
    MDL NO:
    MFCD00002398
    Molecular Formula:
    C7H6O2
    Molecular Weight:
    122.1
    Specification Sheet SDS

  • 4-Aminoantipyrine

    Grade:
    ACS reagent
    Purity:
    ≥ 98% (Assay by titration)
    Synonym:
    4-Amino-2,3-dimethyl-1-phenyl-3-pyrazolin-5-one
    Catalog Number:
    00417
    Grade:
    ACS reagent
    CAS Number:
    83-07-8
    Purity Limit:
    ≥ 98% (Assay by titration)
    MDL NO:
    MFCD00003145
    Molecular Formula:
    C11H13N3O
    Molecular Weight:
    203.25
    Specification Sheet SDS

  • Phthalimide potassium salt

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Potassium phthalamide
    Catalog Number:
    00253
    CAS Number:
    1074-82-4
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00005887
    Molecular Formula:
    C8H4NO2K
    Molecular Weight:
    185.2
    Specification Sheet SDS

  • Orcinol monohydrate colorimetric detection reagent

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    5-Methylresorcinol
    Catalog Number:
    00235
    CAS Number:
    6153-39-5
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00149092
    Molecular Formula:
    C7H8O2·H2O
    Molecular Weight:
    142.2
    Specification Sheet SDS

  • β-Dimethylaminoisopropyl chloride hydrochloride

    Purity:
    ≥ 98% (Titration)
    Synonym:
    2-Chloro-N,N-dimethylpropylamine hydrochloride
    Catalog Number:
    00117
    CAS Number:
    4584-49-0
    Purity Limit:
    ≥ 98% (Titration)
    MDL NO:
    MFCD00012534
    Molecular Formula:
    C5H12ClN·HCl
    Molecular Weight:
    158.07
    Specification Sheet SDS

  • 4-(Bromomethyl)phenylacetic acid phenacyl ester

    Purity:
    ≥ 97% (GC)
    Synonym:
    Phenacyl 4-(bromomethyl)phenylacetate
    Catalog Number:
    00038
    CAS Number:
    66270-97-1
    Purity Limit:
    ≥ 97% (GC)
    MDL NO:
    MFCD00009632
    Molecular Formula:
    C17H15O3Br
    Molecular Weight:
    347.22
    Specification Sheet SDS
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