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Acid Dyes

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  • Erioglaucine  

    Purity:
    ≥ 85% (Dye content)
    Synonym:
    Acid Blue 9
    Catalog Number:
    22876
    CAS Number:
    3844-45-9
    Purity Limit:
    ≥ 85% (Dye content)
    MDL NO:
    MFCD00012141
    Molecular Formula:
    C37H34N2O9S3·2Na
    Molecular Weight:
    792.86
    Specification Sheet SDS

  • Eosin Y disodium salt

    Grade:
    Certifiable Grade
    Purity:
    ≥ 88% (Dye content)
    Synonym:
    Eosin yellowish
    Catalog Number:
    01834
    Grade:
    Certifiable Grade
    CAS Number:
    17372-87-1
    Purity Limit:
    ≥ 88% (Dye content)
    MDL NO:
    MFCD00005040
    Molecular Formula:
    C20H6Br4O5Na2
    Molecular Weight:
    691.88
    Specification Sheet SDS

  • Tartrazine

    Purity:
    ≥ 85% (dye content)
    Synonym:
    3-Carboxy-5-hydroxy-1-p-sulfophenyl-4-p-sulfophenylazopyrazole trisodium salt
    Catalog Number:
    22937
    CAS Number:
    1934-21-0
    Purity Limit:
    ≥ 85% (dye content)
    MDL NO:
    MFCD00148908
    Molecular Formula:
    C16H9N4O9S2·3Na
    Molecular Weight:
    534.37
    Specification Sheet SDS

  • Patent Blue V sodium salt for Microscopy

    Purity:
    ≥ 85% (Dye content)
    Synonym:
    Acid Blue 3cf0
    Catalog Number:
    22906
    CAS Number:
    20262-76-4
    Purity Limit:
    ≥ 85% (Dye content)
    MDL NO:
    MFCD09608138
    Molecular Formula:
    C27H31N2O7S2Na
    Molecular Weight:
    582.7
    Specification Sheet SDS

  • Fluorescein

    Purity:
    99 - 100% (Dye content)
    Synonym:
    CI 45350
    Catalog Number:
    00962
    CAS Number:
    2321-07-5
    Purity Limit:
    99 - 100% (Dye content)
    MDL NO:
    MFCD00005050
    Molecular Formula:
    C20H12O5
    Molecular Weight:
    332.31
    Specification Sheet SDS

  • Quinoline Yellow W/S

    Purity:
    ≥ 85% (Dye content)
    Synonym:
    Acid Yellow 3cf0
    Catalog Number:
    22931
    CAS Number:
    8004-92-0
    Purity Limit:
    ≥ 85% (Dye content)
    MDL NO:
    MFCD00080727
    Molecular Formula:
    C19H9NNa2O8S2
    Molecular Weight:
    489.4
    Specification Sheet SDS

  • Guinea Green B  

    Purity:
    Dye content: ≥ 50%
    Synonym:
    Acid Green 3cf0
    Catalog Number:
    22875
    CAS Number:
    4680-78-8
    Purity Limit:
    Dye content: ≥ 50%
    MDL NO:
    MFCD00012122
    Molecular Formula:
    C37H35N2O6S2Na
    Molecular Weight:
    690.81
    Specification Sheet SDS

  • Eosin B

    Grade:
    Certifiable Grade
    Purity:
    ≥ 86% (Dye content)
    Synonym:
    4',5'-Dibromo-2',7'-dinitrofluorescein disodium salt
    Catalog Number:
    22817
    Grade:
    Certifiable Grade
    CAS Number:
    548-24-3
    Purity Limit:
    ≥ 86% (Dye content)
    MDL NO:
    MFCD00005041
    Molecular Formula:
    C20H6Br2N2O9·2Na
    Molecular Weight:
    624.06
    Specification Sheet SDS

  • Acid Green 25

    Purity:
    ≥ 96% (Dye content)
    Synonym:
    Alizarian Cyamine Green B
    Catalog Number:
    22769
    CAS Number:
    4403-90-1
    Purity Limit:
    ≥ 96% (Dye content)
    MDL NO:
    MFCD00001193
    Molecular Formula:
    C28H20N2Na2O8S2
    Molecular Weight:
    622.58
    Specification Sheet SDS

  • Rose Bengal

    Purity:
    ≥ 90% (Dye content)
    Synonym:
    4,5,6,7-Tetrachloro-2',4',5',7'-tetraiodofluorescein disodium salt
    Catalog Number:
    21920
    CAS Number:
    632-69-9
    Purity Limit:
    ≥ 90% (Dye content)
    MDL NO:
    MFCD00151169
    Molecular Formula:
    C20H2Cl4I4Na2O5
    Molecular Weight:
    1017.62
    Specification Sheet SDS

  • Phloxine B

    Grade:
    Certifiable Grade
    Purity:
    ≥ 92.5% (Dye content)
    Synonym:
    Cyanosine
    Catalog Number:
    00803
    Grade:
    Certifiable Grade
    CAS Number:
    18472-87-2
    Purity Limit:
    ≥ 92.5% (Dye content)
    MDL NO:
    MFCD00070627
    Molecular Formula:
    C20H2Br4Cl4O5Na2
    Molecular Weight:
    829.6
    Specification Sheet SDS

  • Acid blue 20

    Grade:
    CI 50405
    Synonym:
    Induline (Water soluble)
    Catalog Number:
    38649
    Grade:
    CI 50405
    CAS Number:
    8004-99-7
    MDL NO:
    MFCD00131375
    Molecular Weight:
    0
    Specification Sheet SDS

  • Acid red 27

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

  • 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
    CAS Number:
    846-70-8
    Purity Limit:
    ≥ 98% (Assay by titration , HPLC)
    MDL NO:
    MFCD00003958
    Molecular Formula:
    C10H4N2Na2O8S·xH2O
    Molecular Weight:
    358.19
    Specification Sheet SDS

  • 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
    Specification Sheet SDS

  • Acid red 114

    Hazmat
    Purity:
    ≥ 80% (HPLC)
    Hazmat
    Catalog Number:
    38640
    CAS Number:
    6459-94-5
    Purity Limit:
    ≥ 80% (HPLC)
    MDL NO:
    MFCD00003894
    Molecular Formula:
    C37H28N4Na2O10S3
    Molecular Weight:
    830.81
    Specification Sheet SDS

  • Acid green A

    Purity:
    ≥ 97% (HPLC)
    Catalog Number:
    38667
    CAS Number:
    93942-43-9
    Purity Limit:
    ≥ 97% (HPLC)
    Molecular Formula:
    C29H35KN2O6S2
    Molecular Weight:
    610.83
    Specification Sheet SDS

  • Acid red 26

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

  • Eriochrome black A

    Grade:
    CI 15710
    Synonym:
    Chrome black A
    Catalog Number:
    38578
    Grade:
    CI 15710
    CAS Number:
    3618-58-4
    MDL NO:
    MFCD00054390
    Molecular Formula:
    C20H12N3NaO7S
    Molecular Weight:
    461.38
    Specification Sheet SDS

  • Acid red 1

    Grade:
    CI 18050
    Purity:
    ≥ 60% (Dye content)
    Synonym:
    Amidonaphthol red
    Catalog Number:
    38583
    Grade:
    CI 18050
    CAS Number:
    3734-67-6
    Purity Limit:
    ≥ 60% (Dye content)
    MDL NO:
    MFCD00003954
    Molecular Formula:
    C18H13N3Na2O8S2
    Molecular Weight:
    509.41
    Specification Sheet SDS

  • Acid red 52

    Grade:
    CI 45100
    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Acid red
    Catalog Number:
    38572
    Grade:
    CI 45100
    CAS Number:
    3520-42-1
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00010180
    Molecular Formula:
    C27H29N2NaO7S2
    Molecular Weight:
    580.65
    Specification Sheet SDS

  • Acid blue 92

    Grade:
    CI 13390
    Purity:
    ≥ 95% (HPLC)
    Synonym:
    Acid blue A
    Catalog Number:
    38586
    Grade:
    CI 13390
    CAS Number:
    3861-73-2
    Purity Limit:
    ≥ 95% (HPLC)
    MDL NO:
    MFCD00003967
    Molecular Formula:
    C26H16N3Na3O10S3
    Molecular Weight:
    695.57
    Specification Sheet SDS

  • Acid red 88

    Grade:
    CI 15620
    Synonym:
    Echt rot
    Catalog Number:
    38533
    Grade:
    CI 15620
    CAS Number:
    1658-56-6
    MDL NO:
    MFCD00004070
    Molecular Formula:
    C20H13N2NaO4S
    Molecular Weight:
    400.38
    Specification Sheet SDS

  • Acid violet 3

    Grade:
    CI 16580
    Synonym:
    3-(4-Aminophenylazo)-4,5-dihydroxy-2,7-naphthalenedisulfonic acid disodium salt
    Catalog Number:
    38534
    Grade:
    CI 16580
    CAS Number:
    1681-60-3
    MDL NO:
    MFCD00049380
    Molecular Formula:
    C16H11N3Na2O8S2
    Molecular Weight:
    483.38
    Specification Sheet SDS

  • Acid red 13

    Grade:
    CI 16045
    Synonym:
    Fast red E
    Catalog Number:
    38544
    Grade:
    CI 16045
    CAS Number:
    2302-96-7
    MDL NO:
    MFCD00191366
    Molecular Formula:
    C20H12N2Na2O7S2
    Molecular Weight:
    502.42
    Specification Sheet SDS

  • Xylene fast yellow 2G

    Grade:
    CI 18965
    Synonym:
    Acid fast yellow G
    Catalog Number:
    38629
    Grade:
    CI 18965
    CAS Number:
    6359-98-4
    MDL NO:
    MFCD00053367
    Molecular Formula:
    C16H10Cl2N4Na2O7S2
    Molecular Weight:
    551.28
    Specification Sheet SDS

  • Acid red 289

    Catalog Number:
    38512
    CAS Number:
    12220-28-9
    Molecular Formula:
    C35H29N2NaO7S2
    Molecular Weight:
    676.73
    Specification Sheet SDS

  • Acid red 60

    Grade:
    CI 16645
    Synonym:
    Chromotrope 8B
    Catalog Number:
    38619
    Grade:
    CI 16645
    CAS Number:
    5850-64-6
    MDL NO:
    MFCD00046410
    Molecular Formula:
    C20H10N2Na3O11S3
    Molecular Weight:
    619.45
    Specification Sheet SDS

  • Alizarin astrol

    Grade:
    CI 61530
    Catalog Number:
    38635
    Grade:
    CI 61530
    MDL NO:
    MFCD00058945
    Molecular Formula:
    C22H17N2NaO5S
    Molecular Weight:
    444.44
    Specification Sheet SDS

  • Acid brown M

    Grade:
    CI 20195
    Purity:
    ≥ 90% (HPLC)
    Synonym:
    Echt brown N
    Catalog Number:
    38617
    Grade:
    CI 20195
    CAS Number:
    5850-16-8
    Purity Limit:
    ≥ 90% (HPLC)
    MDL NO:
    MFCD00059545
    Molecular Formula:
    C26H16N4Na2O8S2
    Molecular Weight:
    622.53
    Specification Sheet SDS

  • Acid green 9

    Grade:
    CI 42100
    Synonym:
    Patent green
    Catalog Number:
    38595
    Grade:
    CI 42100
    CAS Number:
    4857-81-2
    MDL NO:
    MFCD00050440
    Molecular Formula:
    C37H34ClN2NaO6S2
    Molecular Weight:
    725.25
    Specification Sheet SDS

  • a-Naphthol orange

    Grade:
    CI 14600
    Synonym:
    Acid orange 20
    Catalog Number:
    38605
    Grade:
    CI 14600
    CAS Number:
    523-44-4
    MDL NO:
    MFCD00021510
    Molecular Formula:
    C16H11N2NaO4S
    Molecular Weight:
    350.32
    Specification Sheet SDS

  • Acid red 9

    Grade:
    CI 15635
    Catalog Number:
    38647
    Grade:
    CI 15635
    CAS Number:
    8003-59-6
    MDL NO:
    MFCD00151319
    Molecular Formula:
    C20H13N2NaO4S
    Molecular Weight:
    400.38
    Specification Sheet SDS

  • Crocein scarlet 3B

    Grade:
    CI 27290
    Synonym:
    Acid red 73
    Catalog Number:
    38612
    Grade:
    CI 27290
    CAS Number:
    5413-75-2
    MDL NO:
    MFCD00003907
    Molecular Formula:
    C22H14N4Na2O7S2
    Molecular Weight:
    556.47
    Specification Sheet SDS

  • Acid orange 17

    Grade:
    CI 16020
    Synonym:
    Brilliant orange H
    Catalog Number:
    38607
    Grade:
    CI 16020
    CAS Number:
    52749-23-2
    MDL NO:
    MFCD00059907
    Molecular Formula:
    C18H15N2NaO4S
    Molecular Weight:
    378.38
    Specification Sheet SDS

  • Acid green 27

    Grade:
    CI 61580
    Purity:
    ≥ 75% (HPLC)
    Catalog Number:
    38636
    Grade:
    CI 61580
    CAS Number:
    6408-57-7
    Purity Limit:
    ≥ 75% (HPLC)
    MDL NO:
    MFCD00001196
    Molecular Formula:
    C34H32N2Na2O8S2
    Molecular Weight:
    706.74
    Specification Sheet SDS

  • Acid violet 43

    Grade:
    CI 60730
    Purity:
    ≥ 97% (HPLC)
    Catalog Number:
    38591
    Grade:
    CI 60730
    CAS Number:
    4430-18-6
    Purity Limit:
    ≥ 97% (HPLC)
    MDL NO:
    MFCD00068446
    Molecular Formula:
    C21H14NNaO6S
    Molecular Weight:
    431.39
    Specification Sheet SDS

  • Alphazurine G

    Grade:
    CI 42045
    Synonym:
    Acid blue 1
    Catalog Number:
    38509
    Grade:
    CI 42045
    CAS Number:
    116-95-0
    MDL NO:
    MFCD00012119
    Molecular Formula:
    C27H32N2O6S2
    Molecular Weight:
    544.68
    Specification Sheet SDS

  • Sodium 2-((4-(hydroxybis(4-(phenylamino)phenyl)methyl)phenyl)amino)benzenesulfonate

    Synonym:
    Acid blue 119
    Catalog Number:
    37381
    CAS Number:
    1324-80-7
    MDL NO:
    MFCD00083221
    Molecular Formula:
    C37H30N3O4SNa
    Molecular Weight:
    635.71
    Specification Sheet SDS

  • Naphthol Green B

    Synonym:
    Acid Green 1
    Catalog Number:
    30176
    CAS Number:
    19381-50-1
    MDL NO:
    MFCD00003886
    Molecular Formula:
    C30H15FeN3O15S3·3Na
    Molecular Weight:
    878.47
    Specification Sheet SDS

  • Methyl Red free acid

    Grade:
    ACS reagent
    Synonym:
    2-[4-(Dimethylamino)phenylazo]benzoic acid
    Catalog Number:
    30111
    Grade:
    ACS reagent
    CAS Number:
    493-52-7
    MDL NO:
    MFCD00002425
    Molecular Formula:
    C15H15N3O2
    Molecular Weight:
    269.3
    Specification Sheet SDS

  • Xylene cyanole FF

    Grade:
    For Molecular Biology, Bior
    Purity:
    Dye Content: ≥ 75%
    Synonym:
    Acid blue 147
    Catalog Number:
    29940
    Grade:
    For Molecular Biology, Bior
    CAS Number:
    2650-17-1
    Purity Limit:
    Dye Content: ≥ 75%
    MDL NO:
    MFCD00040657
    Molecular Formula:
    C25H27N2O6S2Na
    Molecular Weight:
    538.62
    SDS

  • Chromotrope 2R

    Purity:
    ≥ 75% (Dye content)
    Synonym:
    Acid red 29
    Catalog Number:
    29858
    CAS Number:
    4197-07-3
    Purity Limit:
    ≥ 75% (Dye content)
    MDL NO:
    MFCD00003955
    Molecular Formula:
    C16H10N2Na2O8S2
    Molecular Weight:
    468.37
    Specification Sheet SDS

  • Rose Bengal

    Grade:
    Certifiable Grade
    Purity:
    ≥ 90% (Dye content)
    Synonym:
    Acid Red 9cf0
    Catalog Number:
    22972
    Grade:
    Certifiable Grade
    CAS Number:
    632-69-9
    Purity Limit:
    ≥ 90% (Dye content)
    MDL NO:
    MFCD00151169
    Molecular Formula:
    C20H2Cl4I4Na2O5
    Molecular Weight:
    1017.62
    Specification Sheet SDS

  • Tropaeolin O  

    Synonym:
    Acid Orange 6
    Catalog Number:
    22965
    CAS Number:
    547-57-9
    MDL NO:
    MFCD00007499
    Molecular Formula:
    C12H9N2O5SNa
    Molecular Weight:
    316.27
    Specification Sheet SDS

  • Tropaeolin OO Indicator

    Synonym:
    4-[(4-Anilinophenyl)azo]benzenesulfonic acid sodium salt
    Catalog Number:
    22905
    CAS Number:
    554-73-4
    MDL NO:
    MFCD00038130
    Molecular Formula:
    C18H14N3O3SNa
    Molecular Weight:
    375.38
    Specification Sheet SDS

  • Lissamine Green B 

    Purity:
    Dye content: ≥ 80%
    Synonym:
    Cyanol green B
    Catalog Number:
    22874
    CAS Number:
    3087-16-9
    Purity Limit:
    Dye content: ≥ 80%
    MDL NO:
    MFCD00012117
    Molecular Formula:
    C27H25N2O7S2Na
    Molecular Weight:
    576.62
    Specification Sheet SDS

  • Orange II

    Grade:
    Certifiable grade
    Purity:
    ≥ 90% (Dye content)
    Synonym:
    Acid Orange 7
    Catalog Number:
    22856
    Grade:
    Certifiable grade
    CAS Number:
    633-96-5
    Purity Limit:
    ≥ 90% (Dye content)
    MDL NO:
    MFCD00011657
    Molecular Formula:
    C16H11N2O4SNa
    Molecular Weight:
    350.33
    Specification Sheet SDS

  • Metanil Yellow

    Purity:
    ≥ 78% (Dye content)
    Synonym:
    Acid Yellow 36
    Catalog Number:
    22833
    CAS Number:
    587-98-4
    Purity Limit:
    ≥ 78% (Dye content)
    MDL NO:
    MFCD00007486
    Molecular Formula:
    C18H14N3O3SNa
    Molecular Weight:
    375.38
    Specification Sheet SDS

  • Chrysophenine

    Purity:
    ≥ 65% (dye content)
    Synonym:
    Direct Yellow 12
    Catalog Number:
    22834
    CAS Number:
    2870-32-8
    Purity Limit:
    ≥ 65% (dye content)
    MDL NO:
    MFCD00007488
    Molecular Formula:
    C30H26N4O8S2·2Na
    Molecular Weight:
    680.67
    Specification Sheet SDS
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