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Stains & Dyes

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  • Lacmoid

    Synonym:
    Resorcinol blue
    Catalog Number:
    37393
    CAS Number:
    33869-21-5
    MDL NO:
    MFCD00005035
    Molecular Formula:
    C24H16N2O6
    Molecular Weight:
    428.39
  • Tartrazine

    Purity:
    ≥ 85% (dye content)
    Synonym:
    3-Carboxy-5-hydroxy-1-p-sulfophenyl-4-p-sulfophenylazopyrazoletrisodium salt
    Catalog Number:
    22937
    Purity Limit:
    ≥ 85% (dye content)
    CAS Number:
    1934-21-0
    MDL NO:
    MFCD00148908
    Molecular Formula:
    C16H9N4O9S2·3Na
    Molecular Weight:
    534.37
  • Acid blue 20

    Grade:
    CI 50405
    Synonym:
    Induline (Water soluble)
    Catalog Number:
    38649
    Grade:
    CI 50405
    CAS Number:
    8004-99-7
    MDL NO:
    MFCD00131375
  • Indanthrone

    Grade:
    CI 69800
    Purity:
    ≥ 97%
    Catalog Number:
    38655
    Grade:
    CI 69800
    Purity Limit:
    ≥ 97%
    CAS Number:
    81-77-6
    MDL NO:
    MFCD00046964
    Molecular Formula:
    C28H14N2O4
    Molecular Weight:
    442.43
  • Acid red 27

    Grade:
    CI 16185
    Purity:
    ≥ 90% (UV)
    Synonym:
    Amaranth
    Catalog Number:
    38665
    Grade:
    CI 16185
    Purity Limit:
    ≥ 90% (UV)
    CAS Number:
    915-67-3
    MDL NO:
    MFCD00004076
    Molecular Formula:
    C20H11N2Na3O10S3
    Molecular Weight:
    604.46
  • Quinizarin blue

    Grade:
    CI 60725
    Purity:
    ≥ 90% (HPLC)
    Synonym:
    1-Hydroxy-4-p-toluidinoanthraquinon
    Catalog Number:
    38653
    Grade:
    CI 60725
    Purity Limit:
    ≥ 90% (HPLC)
    CAS Number:
    81-48-1
    MDL NO:
    MFCD00019148
    Molecular Formula:
    C21H15NO3
    Molecular Weight:
    329.36
  • Quinizarin

    Grade:
    CI 58050
    Purity:
    ≥ 97% (HPLC)
    Synonym:
    1,4-Dihydroxyanthraquinone
    Catalog Number:
    38654
    Grade:
    CI 58050
    Purity Limit:
    ≥ 97% (HPLC)
    CAS Number:
    81-64-1
    MDL NO:
    MFCD00001209
    Molecular Formula:
    C14H8O4
    Molecular Weight:
    240.21
  • Coumarin 343

    Purity:
    ≥ 98% (TLC)
    Synonym:
    2,3,6,7-Tetrahydro-11-oxo-1H,5H,11H-[1]benzopyrano[6,7,8-ij]quinolizine-10-carboxylicacid
    Catalog Number:
    38614
    Purity Limit:
    ≥ 98% (TLC)
    CAS Number:
    55804-65-4
    MDL NO:
    MFCD00051335
    Molecular Formula:
    C16H15NO4
    Molecular Weight:
    285.3
  • 3-Nitroaniline

    Hazmat
    Grade:
    CI 37030
    Purity:
    ≥ 98% (GC)
    Hazmat
    Catalog Number:
    38670
    Grade:
    CI 37030
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    99-09-2
    MDL NO:
    MFCD00007782
    Molecular Formula:
    C6H6N2O2
    Molecular Weight:
    138.13
  • Sunset yellow FCF

    Purity:
    ≥ 85% (Dye content, dried basis)
    Synonym:
    CI 15985
    Catalog Number:
    38560
    Purity Limit:
    ≥ 85% (Dye content, dried basis)
    CAS Number:
    2783-94-0
    MDL NO:
    MFCD00036437
    Molecular Formula:
    C16H10N2Na2O7S2
    Molecular Weight:
    452.36
  • Pontacyl carmine 2B

    Grade:
    CI 18075
    Purity:
    ≥ 93% (HPLC)
    Catalog Number:
    38642
    Grade:
    CI 18075
    Purity Limit:
    ≥ 93% (HPLC)
    CAS Number:
    6625-46-3
    MDL NO:
    MFCD00059131
    Molecular Formula:
    C19H15N3Na2O9S2
    Molecular Weight:
    539.44
  • Catalog Number:
    38623
    CAS Number:
    60687-93-6
    MDL NO:
    MFCD00071249
  • Oxonol yellow K

    Synonym:
    4,4'-Methylidynebis[1-(4-sulfophenyl)-3-methyl-5-pyrazolone]dipotassium salt
    Catalog Number:
    38657
    CAS Number:
    82407-55-4
    MDL NO:
    MFCD02093486
    Molecular Formula:
    C21H16K2N4O8S2
    Molecular Weight:
    594.7
  • 2-(3,6-Dihexyloxyxanthen-9-yl)benzoic acid

    Purity:
    ≥ 97% (Assay by titration , HPLC)
    Catalog Number:
    38679
    Purity Limit:
    ≥ 97% (Assay by titration , HPLC)
    Molecular Formula:
    C32H38O5
    Molecular Weight:
    502.65
  • Leuco crystal violet

    Purity:
    ≥ 98% (Assay by titration , HPLC)
    Synonym:
    4,4',4''-Methylidynetris(N,N-dimethylaniline)
    Catalog Number:
    38620
    Purity Limit:
    ≥ 98% (Assay by titration , HPLC)
    CAS Number:
    603-48-5
    MDL NO:
    MFCD00008314
    Molecular Formula:
    C25H31N3
    Molecular Weight:
    373.54
  • Fast red ITR base

    Grade:
    CI 37150
    Purity:
    ≥ 98% (Assay by titration , HPLC)
    Synonym:
    Fast red ITR
    Catalog Number:
    38669
    Grade:
    CI 37150
    Purity Limit:
    ≥ 98% (Assay by titration , HPLC)
    CAS Number:
    97-35-8
    MDL NO:
    MFCD00009045
    Molecular Formula:
    C11H18N2O3S
    Molecular Weight:
    258.34
  • Catalog Number:
    38673
    MDL NO:
    MFCD01310220
  • Sudan I

    Grade:
    CI 12055
    Purity:
    ≥ 93% (HPLC)
    Synonym:
    Oil orange
    Catalog Number:
    38659
    Grade:
    CI 12055
    Purity Limit:
    ≥ 93% (HPLC)
    CAS Number:
    842-07-9
    MDL NO:
    MFCD00003911
    Molecular Formula:
    C16H12N2O
    Molecular Weight:
    248.29
  • 2-Nitroaniline

    Hazmat
    Grade:
    CI 37025
    Purity:
    ≥ 99% (GC)
    Hazmat
    Catalog Number:
    38663
    Grade:
    CI 37025
    Purity Limit:
    ≥ 99% (GC)
    CAS Number:
    88-74-4
    MDL NO:
    MFCD00007687
    Molecular Formula:
    C6H6N2O2
    Molecular Weight:
    138.13
  • Fuchsine basic

    Hazmat
    Grade:
    CI 42510
    Synonym:
    Basic violet 14
    Hazmat
    Catalog Number:
    38671
    Grade:
    CI 42510
  • Catalog Number:
    38678
    MDL NO:
    MFCD00011924
  • Azo blue

    Grade:
    CI 23680
    Synonym:
    Direct violet 39
    Catalog Number:
    38622
    Grade:
    CI 23680
    CAS Number:
    6059-34-3
    MDL NO:
    MFCD00059133
    Molecular Formula:
    C34H24N4Na2O8S2
    Molecular Weight:
    726.69
  • Catalog Number:
    38672
    MDL NO:
    MFCD00197815
  • Omega chrome black blue G

    Grade:
    CI 18160
    Synonym:
    Eriochrome grey SGL
    Catalog Number:
    38639
    Grade:
    CI 18160
    CAS Number:
    6441-96-9
    MDL NO:
    MFCD00059525
    Molecular Formula:
    C18H13ClN3NaO6S
    Molecular Weight:
    457.82
  • Fisetin

    Grade:
    CI 75620
    Purity:
    ≥ 98% (HPLC)
    Synonym:
    3,7,3',4'-Tetrahydroxyflavone
    Catalog Number:
    38609
    Grade:
    CI 75620
    Purity Limit:
    ≥ 98% (HPLC)
    CAS Number:
    528-48-3
    MDL NO:
    MFCD00006829
    Molecular Formula:
    C15H10O6
    Molecular Weight:
    286.24
  • 4-(8-Hydroxy-5-quinolylazo)-1-naphthalenesulfonic acid disodium salt

    Purity:
    ≥ 93% (Assay by titration)
    Synonym:
    Naphthazoxine disodium salt
    Catalog Number:
    38682
    Purity Limit:
    ≥ 93% (Assay by titration)
    MDL NO:
    MFCD02183483
    Molecular Formula:
    C19H11N3Na2O4S
    Molecular Weight:
    423.35
  • Catalog Number:
    38675
    Molecular Formula:
    C30H24FeN6Na3O18S6
    Molecular Weight:
    1073.72
  • 1,4-Phenylenediamine dihydrochloride

    Hazmat
    Grade:
    CI 76061
    Purity:
    ≥ 98% (HPLC)
    Synonym:
    1,4-Diaminobenzene dihydrochloride
    Hazmat
    Catalog Number:
    38627
    Grade:
    CI 76061
    Purity Limit:
    ≥ 98% (HPLC)
    CAS Number:
    624-18-0
    MDL NO:
    MFCD00013002
    Molecular Formula:
    C6H8N2·2HCl
    Molecular Weight:
    181.06
  • Nuclear fast red

    Grade:
    CI 60760
    Synonym:
    Kernechtrot
    Catalog Number:
    38637
    Grade:
    CI 60760
    CAS Number:
    6409-77-4
    MDL NO:
    MFCD00078493
    Molecular Formula:
    C14H8NNaO7S
    Molecular Weight:
    357.27
  • Catalog Number:
    38677
    MDL NO:
    MFCD00151135
  • Azoic diazo component 48

    Hazmat
    Grade:
    CI 37235
    Synonym:
    Diazo blue B salt
    Hazmat
    Catalog Number:
    38666
    Grade:
    CI 37235
    CAS Number:
    91-91-8
    MDL NO:
    MFCD00011886
    Molecular Formula:
    C14H12Cl2N4O2·ZnCl2·ZnSO4
    Molecular Weight:
    636.89
  • 2'-Anilino-6'-(dibutylamino)-3'-methylfluoran

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    ODB 2
    Catalog Number:
    38664
    Purity Limit:
    ≥ 98% (HPLC)
    CAS Number:
    89331-94-2
    MDL NO:
    MFCD00307579
    Molecular Formula:
    C35H36N2O3
    Molecular Weight:
    532.68
  • 2,4-Diaminotoluene

    Hazmat
    Grade:
    CI 76035
    Purity:
    ≥ 98% (Assay by titration , GC)
    Synonym:
    2,4-Toluenediamine
    Hazmat
    Catalog Number:
    38668
    Grade:
    CI 76035
    Purity Limit:
    ≥ 98% (Assay by titration , GC)
    CAS Number:
    95-80-7
    MDL NO:
    MFCD00007804
    Molecular Formula:
    C7H10N2
    Molecular Weight:
    122.17
  • Methyl green

    Grade:
    CI 42585
    Synonym:
    Basic blue 20
    Catalog Number:
    38658
    Grade:
    CI 42585
    CAS Number:
    82-94-0
    MDL NO:
    MFCD00011879
    Molecular Formula:
    C26H33Cl2N3
    Molecular Weight:
    458.47
  • Phenolphthalein disulfate potassium salt hydrate

    Purity:
    ≥ 97% (Assay by titration)
    Catalog Number:
    38628
    Purity Limit:
    ≥ 97% (Assay by titration)
    CAS Number:
    62625-16-5
    MDL NO:
    MFCD00070538
    Molecular Formula:
    C20H13K3O11S2·xH2O
    Molecular Weight:
    610.73
  • Disodium 1-(dimethylphenylazo)-2-naphthol-3,6-disulfonate

    Synonym:
    1-(Dimethylphenylazo)-2-naphthol-3,6-disulfonic acid disodiumsalt
    Catalog Number:
    38681
    MDL NO:
    MFCD00036432
  • Catalog Number:
    38569
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    344928-74-1
    MDL NO:
    MFCD30749259
    Molecular Formula:
    C16H17N
    Molecular Weight:
    223.32
  • Acid anthracene brown PG

    Grade:
    CI 17590
    Synonym:
    Chrome brown PG
    Catalog Number:
    38630
    Grade:
    CI 17590
    CAS Number:
    6369-32-0
    MDL NO:
    MFCD00059537
    Molecular Formula:
    C23H15N3Na2O6S
    Molecular Weight:
    507.43
  • Phenylazoresorcinol

    Grade:
    CI 11920
    Purity:
    ≥ 80% (Assay by titration)
    Catalog Number:
    38643
    Grade:
    CI 11920
    Purity Limit:
    ≥ 80% (Assay by titration)
    CAS Number:
    67503-46-2
    MDL NO:
    MFCD00059881
    Molecular Formula:
    C12H10N2O2
    Molecular Weight:
    214.22
  • 1,4-Diamino-2,3-dichloroanthraquinone

    Grade:
    CI 61102
    Purity:
    ≥ 93% (HPLC)
    Synonym:
    Disperse violet 28
    Catalog Number:
    38652
    Grade:
    CI 61102
    Purity Limit:
    ≥ 93% (HPLC)
    CAS Number:
    81-42-5
    MDL NO:
    MFCD00035693
    Molecular Formula:
    C14H8Cl2N2O2
    Molecular Weight:
    307.13
  • Quercetin hydrate

    Hazmat
    Grade:
    CI 75670
    Purity:
    ≥ 96% (HPLC)
    Synonym:
    3,3',4',5,7-Pentahydroxyflavone hydrate
    Hazmat
    Catalog Number:
    38662
    Grade:
    CI 75670
    Purity Limit:
    ≥ 96% (HPLC)
    CAS Number:
    849061-97-8
    MDL NO:
    MFCD00006828
    Molecular Formula:
    C15H10O7·xH2O
    Molecular Weight:
    302.24
  • Direct yellow 44

    Grade:
    CI 29000
    Synonym:
    Direct fast yellow GC
    Catalog Number:
    38650
    Grade:
    CI 29000
    CAS Number:
    8005-52-5
    MDL NO:
    MFCD00059960
    Molecular Formula:
    C27H20N6Na2O8S
    Molecular Weight:
    634.53
  • Hazmat
    Catalog Number:
    38680
    MDL NO:
    MFCD00134126
  • Naphthol yellow S hydrate

    Grade:
    CI 10316
    Purity:
    ≥ 98% (Assay by titration , HPLC)
    Synonym:
    2,4-Dinitro-1-naphthol-7-sulfonic acid disodium salt hydrate
    Catalog Number:
    38661
    Grade:
    CI 10316
    Purity Limit:
    ≥ 98% (Assay by titration , HPLC)
    CAS Number:
    846-70-8
    MDL NO:
    MFCD00003958
    Molecular Formula:
    C10H4N2Na2O8S·xH2O
    Molecular Weight:
    358.19
  • Acid red 114

    Hazmat
    Purity:
    ≥ 80% (HPLC)
    Hazmat
    Catalog Number:
    38640
    Purity Limit:
    ≥ 80% (HPLC)
    CAS Number:
    6459-94-5
    MDL NO:
    MFCD00003894
    Molecular Formula:
    C37H28N4Na2O10S3
    Molecular Weight:
    830.81
  • Catalog Number:
    38600
    Purity Limit:
    ≥ 95% (GC)
    CAS Number:
    518-44-5
    MDL NO:
    MFCD00046931
    Molecular Formula:
    C20H14O5
    Molecular Weight:
    334.33
  • Catalog Number:
    38676
    MDL NO:
    MFCD00466862
  • Acid green A

    Purity:
    ≥ 97% (HPLC)
    Catalog Number:
    38667
    Purity Limit:
    ≥ 97% (HPLC)
    CAS Number:
    93942-43-9
    Molecular Formula:
    C29H35KN2O6S2
    Molecular Weight:
    610.83
  • Acid red 26

    Grade:
    CI 16150
    Purity:
    ≥ 78% (Dye content)
    Synonym:
    Ponceau de xylidine
    Catalog Number:
    38584
    Grade:
    CI 16150
    Purity Limit:
    ≥ 78% (Dye content)
    CAS Number:
    3761-53-3
    MDL NO:
    MFCD00003897
    Molecular Formula:
    C18H14N2Na2O7S2
    Molecular Weight:
    480.42
  • INT formazan

    Synonym:
    1-(4-Iodophenyl)-5-(4-nitrophenyl)-3-phenylformazan
    Catalog Number:
    38646
    CAS Number:
    7781-49-9
    MDL NO:
    MFCD00007300
    Molecular Formula:
    C19H14IN5O2
    Molecular Weight:
    471.26