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25001

  • 4,5,6-Trichloropyrimidine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44851
    CAS Number:
    1780-27-4
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD08458457
    Molecular Formula:
    C4HCl3N2
    Molecular Weight:
    183.42
    Specification Sheet SDS

  • 4,5-Bis(2-cyanoethylthio)-1,3-dithiol-2-one

    Hazmat
    Purity:
    ≥ 98% (HPLC)
    Hazmat
    Catalog Number:
    43169
    CAS Number:
    158871-28-4
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD01142888
    Molecular Formula:
    C9H8N2OS4
    Molecular Weight:
    288.42
    Specification Sheet SDS

  • 4,5-Bis(2-cyanoethylthio)-1,3-dithiole-2-thione

    Hazmat
    Purity:
    ≥ 98% (HPLC)
    Hazmat
    Catalog Number:
    43175
    CAS Number:
    132765-35-6
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD01096160
    Molecular Formula:
    C9H8N2S5
    Molecular Weight:
    304.48
    Specification Sheet SDS

  • 4,5-Bis(benzoylthio)-1,3-dithiole-2-thione

    Purity:
    ≥ 98% (HPLC)
    Catalog Number:
    43197
    CAS Number:
    68494-08-6
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00059894
    Molecular Formula:
    C17H10O2S5
    Molecular Weight:
    406.57
    Specification Sheet SDS

  • 4,5-Bis(hydroxymethyl)-2-phenylimidazole

    Purity:
    ≥ 95% (HPLC)
    Catalog Number:
    42956
    CAS Number:
    61698-32-6
    Purity Limit:
    ≥ 95% (HPLC)
    MDL NO:
    MFCD00047017
    Molecular Formula:
    C11H12N2O2
    Molecular Weight:
    204.23
    Specification Sheet SDS

  • 4,5-Bis(hydroxymethyl)imidazole

    Purity:
    ≥ 98% (Assay by titration)
    Synonym:
    1H-Imidazole-4,5-dimethanol
    Catalog Number:
    42898
    CAS Number:
    33457-48-6
    Purity Limit:
    ≥ 98% (Assay by titration)
    MDL NO:
    MFCD00191661
    Molecular Formula:
    C5H8N2O2
    Molecular Weight:
    128.13
    Specification Sheet SDS

  • 4,5-Bis(methylthio)-1,3-dithiol-2-one

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    43177
    CAS Number:
    61485-46-9
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00137889
    Molecular Formula:
    C5H6OS4
    Molecular Weight:
    210.34
    Specification Sheet SDS

  • 4,5-Bis(methylthio)-1,3-dithiole-2-thione

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    43181
    CAS Number:
    49638-64-4
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00137888
    Molecular Formula:
    C5H6S5
    Molecular Weight:
    226.4
    Specification Sheet SDS

  • 4,5-Dehydro-L-leucine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    H-Leu(4,5-dehydro)-OH
    Catalog Number:
    05807
    CAS Number:
    87392-13-0
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00237695
    Molecular Formula:
    C6H11NO2
    Molecular Weight:
    129.18
    Specification Sheet SDS

  • 4,5-Diamino-6-hydroxypyrimidine

    Purity:
    ≥ 96% (HPLC)
    Synonym:
    5,6-Diamino-4(1H-pyrimidinone
    Catalog Number:
    43751
    CAS Number:
    1672-50-0
    Purity Limit:
    ≥ 96% (HPLC)
    MDL NO:
    MFCD00006114
    Molecular Formula:
    C4H6N4O
    Molecular Weight:
    126.12
    Specification Sheet SDS

  • 4,5-Diaminopyrimidine

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    43744
    CAS Number:
    13754-19-3
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00006113
    Molecular Formula:
    C4H6N4
    Molecular Weight:
    110.12
    Specification Sheet SDS

  • 4,5-Diazafluoren-9-one

    Purity:
    ≥ 96% (HPLC)
    Catalog Number:
    40951
    CAS Number:
    50890-67-0
    Purity Limit:
    ≥ 96% (HPLC)
    MDL NO:
    MFCD00046892
    Molecular Formula:
    C11H6N2O
    Molecular Weight:
    182.18
    Specification Sheet SDS

  • 4,5-Diazafluorene-9-one O-(p-Toluenesulfonyl)oxime

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    4,5-Diazafluorene-9-one O-tosyloxime
    Catalog Number:
    40942
    CAS Number:
    1655490-79-1
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD28976163
    Molecular Formula:
    C18H13N3O3S
    Molecular Weight:
    351.38
    Specification Sheet SDS

  • 4,5-Dibromo-1H-1,2,3-triazole

    Purity:
    ≥ 98% (Assay by titration)
    Catalog Number:
    45044
    CAS Number:
    15294-81-2
    Purity Limit:
    ≥ 98% (Assay by titration)
    MDL NO:
    MFCD08062401
    Molecular Formula:
    C2HBr2N3
    Molecular Weight:
    226.86
    Specification Sheet SDS

  • 4,5-Dibromo-2-(1-Methylethyl)-1H-Imidazole

    Catalog Number:
    24295
    CAS Number:
    885266-63-7
    MDL NO:
    MFCD03844701
    Molecular Formula:
    C6H8Br2N2
    Molecular Weight:
    267.95
    SDS

  • 4,5-Dibromo-3(2H)-pyridazinone

    Purity:
    ≥ 98% (GC)
    Synonym:
    4,5-Dibromo-3-hydroxypyridazine
    Catalog Number:
    44623
    CAS Number:
    5788-58-9
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00023641
    Molecular Formula:
    C4H2Br2N2O
    Molecular Weight:
    253.88
    Specification Sheet SDS

  • 4,5-Dibromo-N-methoxy-N-methyl-2-furancarboxamide

    Purity:
    ≥ 96% (GC)
    Synonym:
    Methyl 4,5-Dibromo-N-methyl-2-furohydroxamate
    Catalog Number:
    44451
    CAS Number:
    502639-02-3
    Purity Limit:
    ≥ 96% (GC)
    MDL NO:
    MFCD08276337
    Molecular Formula:
    C7H7Br2NO3
    Molecular Weight:
    312.95
    Specification Sheet SDS

  • 4,5-Dibromobenzene-1,2-diol, suitable for Hematology & Histology

    Grade:
    Technical grade
    Purity:
    ≥ 88% (GC)
    Catalog Number:
    41851
    Grade:
    Technical grade
    CAS Number:
    2563-26-0
    Purity Limit:
    ≥ 88% (GC)
    MDL NO:
    MFCD00233157
    Molecular Formula:
    C6H4Br2O2
    Molecular Weight:
    267.9
    Specification Sheet SDS

  • 4,5-Dibromofluorescein

    Purity:
    ≥ 95% (Dye content)
    Synonym:
    Acid Orange II
    Catalog Number:
    22818
    CAS Number:
    596-03-2
    Purity Limit:
    ≥ 95% (Dye content)
    MDL NO:
    MFCD00005042
    Molecular Formula:
    C20H10Br2O5
    Molecular Weight:
    490.1
    Specification Sheet SDS

  • 4,5-Dichloro-2-methyl-3(2H)-pyridazinone

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44625
    CAS Number:
    933-76-6
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00051686
    Molecular Formula:
    C5H4Cl2N2O
    Molecular Weight:
    179.0
    Specification Sheet SDS

  • 4,5-Dichloro-2-n-octyl-4-isothiazolin-3-one

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44963
    CAS Number:
    64359-81-5
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD04034673
    Molecular Formula:
    C11H17Cl2NOS
    Molecular Weight:
    282.22
    Specification Sheet SDS

  • 4,5-Dichloro-2-phenyl-3(2H)-pyridazinone

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    44622
    CAS Number:
    1698-53-9
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00006470
    Molecular Formula:
    C10H6Cl2N2O
    Molecular Weight:
    241.07
    Specification Sheet SDS

  • 4,5-Dichloro-3(2H)-pyridazinone

    Purity:
    ≥ 98% (GC)
    Synonym:
    4,5-Dichloro-3-hydroxypyridazine
    Catalog Number:
    44629
    CAS Number:
    932-22-9
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00051504
    Molecular Formula:
    C4H2Cl2N2O
    Molecular Weight:
    164.97
    Specification Sheet SDS

  • 4,5-Dichloroimidazole

    Purity:
    ≥ 97% (GC)
    Catalog Number:
    44494
    CAS Number:
    15965-30-7
    Purity Limit:
    ≥ 97% (GC)
    MDL NO:
    MFCD00005195
    Molecular Formula:
    C3H2Cl2N2
    Molecular Weight:
    136.96
    Specification Sheet SDS

  • 4,5-Dicyano-1,3-dithiol-2-one

    Hazmat
    Purity:
    ≥ 98% (GC)
    Synonym:
    2-Oxo-1,3-dithiole-4,5-dicarbonitrile
    Hazmat
    Catalog Number:
    43275
    CAS Number:
    934-31-6
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00224014
    Molecular Formula:
    C5N2OS2
    Molecular Weight:
    168.19
    Specification Sheet SDS

  • 4,5-Dicyanoimidazole

    Hazmat
    Purity:
    ≥ 99% (HPLC)
    Synonym:
    4,5-Imidazoledicarbonitrile
    Hazmat
    Catalog Number:
    31202
    CAS Number:
    1122-28-7
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00005194
    Molecular Formula:
    C5H2N4
    Molecular Weight:
    118.1
    Specification Sheet SDS

  • 4,5-Diethoxy-2-nitro-benzoic acid ethyl ester

    Purity:
    ≥ 99% (GC)
    Synonym:
    Ethyl 4,5-diethoxy-2-nitrobenzoate
    Catalog Number:
    29300
    CAS Number:
    460750-26-9
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD11045615
    Molecular Formula:
    C13H17NO6
    Molecular Weight:
    283.28
    Specification Sheet SDS

  • 4,5-Difluoro-1,2-phenylenediamine

    Purity:
    ≥ 97% (GC)
    Synonym:
    1,2-Diamino-4,5-difluorobenzene
    Catalog Number:
    46025
    CAS Number:
    76179-40-3
    Purity Limit:
    ≥ 97% (GC)
    MDL NO:
    MFCD00061131
    Molecular Formula:
    C6H6F2N2
    Molecular Weight:
    144.12
    Specification Sheet SDS

  • 4,5-Difluoro-2-methoxybenzonitrile

    Hazmat
    Purity:
    ≥ 98% (GC)
    Synonym:
    2-Cyano-4,5-difluoroanisole
    Hazmat
    Catalog Number:
    46131
    CAS Number:
    425702-28-9
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD06660346
    Molecular Formula:
    C8H5F2NO
    Molecular Weight:
    169.13
    Specification Sheet SDS

  • 4,5-Difluoro-2-nitroaniline

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    46231
    CAS Number:
    78056-39-0
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00010876
    Molecular Formula:
    C6H4F2N2O2
    Molecular Weight:
    174.11
    Specification Sheet SDS

  • 4,5-Difluoro-2-nitrobenzoic acid

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    45479
    CAS Number:
    20372-63-8
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00799521
    Molecular Formula:
    C7H3F2NO4
    Molecular Weight:
    203.1
    Specification Sheet SDS

  • 4,5-Difluoroindole

    Purity:
    ≥ 95% (Assay)
    Synonym:
    4,5-Difluoro-1H-indole
    Catalog Number:
    21152
    CAS Number:
    247564-63-2
    Purity Limit:
    ≥ 95% (Assay)
    MDL NO:
    MFCD01863154
    Molecular Formula:
    C8H5F2N
    Molecular Weight:
    153.13
    Specification Sheet SDS

  • 4,5-Dihydro-2,5-dimethyl-4-oxofuran-3-yl butyrate

    Purity:
    ≥ 96% (GC)
    Synonym:
    Butyric acid 4,5-dihydro-2,5-dimethyl-4-oxofuran-3-yl
    Catalog Number:
    42895
    CAS Number:
    114099-96-6
    Purity Limit:
    ≥ 96% (GC)
    MDL NO:
    MFCD08457803
    Molecular Formula:
    C10H14O4
    Molecular Weight:
    198.22
    Specification Sheet SDS

  • 4,5-Dihydro-2-phenyloxazole

    Purity:
    ≥ 98% (GC)
    Synonym:
    (4,5-Dihydro-2-oxazolyl)benzene
    Catalog Number:
    43317
    CAS Number:
    7127-19-7
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00075541
    Molecular Formula:
    C9H9NO
    Molecular Weight:
    147.18
    Specification Sheet SDS

  • 4,5-Dihydro-3(2H)-thiophenone

    Hazmat
    Purity:
    ≥ 99% (GC)
    Synonym:
    3-Thiophanone
    Hazmat
    Catalog Number:
    29785
    CAS Number:
    1003-04-9
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00005412
    Molecular Formula:
    C6H6OS
    Molecular Weight:
    102.15
    Specification Sheet SDS

  • 4,5-Dihydro-6-methyl-3(2H)-pyridazinone

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    43663
    CAS Number:
    5157-08-4
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00006455
    Molecular Formula:
    C5H8N2O
    Molecular Weight:
    112.13
    Specification Sheet SDS

  • 4,5-Dihydro-6-phenyl-3(2H)-pyridazinone

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    6-Phenyl-4,5-dihydro-2H-pyridazin-3-one
    Catalog Number:
    26065
    CAS Number:
    1011-46-7
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00099597
    Molecular Formula:
    C10H10N2O
    Molecular Weight:
    174.2
    Specification Sheet SDS

  • 4,5-Dihydroxy-1,3-benzenedisulfonic acid disodium salt monohydrate

    Purity:
    ≥ 99% (Assay by titration)
    Synonym:
    Catechol-3,5-disulfonic acid disodium salt monohydrate
    Catalog Number:
    37390
    CAS Number:
    149-45-1
    Purity Limit:
    ≥ 99% (Assay by titration)
    MDL NO:
    MFCD00007473
    Molecular Formula:
    C6H4O8S2Na2·H2O
    Molecular Weight:
    332.21
    Specification Sheet SDS

  • 4,5-Dihydroxyanthraquinone-2-carboxylic acid

    Purity:
    ≥ 95% (HPLC)
    Synonym:
    Rhein
    Catalog Number:
    42418
    CAS Number:
    478-43-3
    Purity Limit:
    ≥ 95% (HPLC)
    MDL NO:
    MFCD00009618
    Molecular Formula:
    C15H8O6
    Molecular Weight:
    284.22
    Specification Sheet SDS

  • 4,5-Dimethoxy-2-nitrobenzyl alcohol

    Purity:
    ≥ 99% (GC)
    Synonym:
    6-Nitroveratryl alcohol
    Catalog Number:
    12980
    CAS Number:
    1016-58-6
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00014701
    Molecular Formula:
    C9H11NO5
    Molecular Weight:
    213.19
    Specification Sheet SDS

  • 4,5-Dimethyl-3-hydroxy-2,5-dihydrofuran-2-one

    Grade:
    FG, KOSHER, FEMA 3634
    Purity:
    97 - 100% (GC)
    Synonym:
    Caramel furanone, Sotolon
    Catalog Number:
    34225
    Grade:
    FG, KOSHER, FEMA 3634
    CAS Number:
    28664-35-9
    Purity Limit:
    97 - 100% (GC)
    MDL NO:
    MFCD00059957
    Molecular Formula:
    C6H8O3
    Molecular Weight:
    128.13
    Specification Sheet SDS

  • 4,5-Dimethylfurfural

    Purity:
    ≥ 97% (GC)
    Synonym:
    4,5-Dimethyl-2-furaldehyde
    Catalog Number:
    42876
    CAS Number:
    52480-43-0
    Purity Limit:
    ≥ 97% (GC)
    MDL NO:
    MFCD00085030
    Molecular Formula:
    C7H8O2
    Molecular Weight:
    124.14
    Specification Sheet SDS

  • 4,5-Dimethylthiazole

    Hazmat
    Grade:
    meets FG specifications, KOSHER, FEMA 3274
    Purity:
    99 - 100% (GC)
    Hazmat
    Catalog Number:
    34123
    Grade:
    meets FG specifications, KOSHER, FEMA 3274
    CAS Number:
    3581-91-7
    Purity Limit:
    99 - 100% (GC)
    MDL NO:
    MFCD00005336
    Molecular Formula:
    C5H7NS
    Molecular Weight:
    113.18
    Specification Sheet SDS

  • 4,5-Diphenyl-2-oxazolethiol

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    4,5-Diphenyl-2-mercaptooxazole
    Catalog Number:
    43289
    CAS Number:
    6670-13-9
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00173660
    Molecular Formula:
    C15H11NOS
    Molecular Weight:
    253.32
    Specification Sheet SDS

  • 4,5-Diphenylimidazole

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    4,5-Diphenyl-1H-imidazole
    Catalog Number:
    24646
    CAS Number:
    668-94-0
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00005198
    Molecular Formula:
    C15H12N2
    Molecular Weight:
    220.27
    Specification Sheet SDS

  • 4,5-Diphenylimidazolin-2-one

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    4,5-Diphenylimidazolone
    Catalog Number:
    25700
    CAS Number:
    642-36-4
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00022393
    Molecular Formula:
    C15H12N2O
    Molecular Weight:
    236.27
    Specification Sheet SDS

  • 4,5-Ethylenedithio-1,3-dithiol-2-one

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    43190
    CAS Number:
    74962-29-1
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00137883
    Molecular Formula:
    C5H4OS4
    Molecular Weight:
    208.33
    Specification Sheet SDS

  • 4,5-Ethylenedithio-1,3-dithiole-2-thione

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    43187
    CAS Number:
    59089-89-3
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00137882
    Molecular Formula:
    C5H4S5
    Molecular Weight:
    224.39
    Specification Sheet SDS

  • 4,5-Imidazoledicarboxylic acid

    Purity:
    ≥ 97% (HPLC)
    Catalog Number:
    36492
    CAS Number:
    570-22-9
    Purity Limit:
    ≥ 97% (HPLC)
    MDL NO:
    MFCD00005200
    Molecular Formula:
    C5H4N2O4
    Molecular Weight:
    156.1
    Specification Sheet SDS

  • 4,5-Methylenedioxy-1,2-phenylenediamine dihydrochloride

    Grade:
    suitable for Hematology & Histology
    Purity:
    ≥ 98% (HPLC)
    Synonym:
    1,2-Diamino-4,5-methylenedioxybenzene dihydrochloride
    Catalog Number:
    41852
    Grade:
    suitable for Hematology & Histology
    CAS Number:
    81864-15-5
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00037497
    Molecular Formula:
    C7H8N2O2·2HCl
    Molecular Weight:
    225.07
    Specification Sheet SDS
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