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Other Stains & Dyes

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  • Indigotetrasulfonic acid tetrapotassium salt hydrate

    Grade:
    CI 73020
    Purity:
    ≥ 90% (HPLC)
    Synonym:
    Tetrapotassium indigotetrasulfonate hydrate
    Catalog Number:
    38564
    Grade:
    CI 73020
    CAS Number:
    28699-96-9
    Purity Limit:
    ≥ 90% (HPLC)
    MDL NO:
    MFCD00059886
    Molecular Formula:
    C16H6K4N2O14S4·xH2O
    Molecular Weight:
    734.86
    Specification Sheet SDS

  • 4,4'-Bis(5-methyl-2-benzoxazolyl)stilbene

    Purity:
    ≥ 98% (HPLC)
    Catalog Number:
    38548
    CAS Number:
    2397-00-4
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00191316
    Molecular Formula:
    C30H22N2O2
    Molecular Weight:
    442.52
    Specification Sheet SDS

  • H-Resorcinol [Spectrophotometric reagent for the determination of B by FIA]

    Purity:
    ≥ 97% (HPLC)
    Synonym:
    1-(2,4-Dihydroxy-1-phenylazo)-8-hydroxynaphthalene-3,6-disulfonic acid disodium salt
    Catalog Number:
    38580
    CAS Number:
    3627-01-8
    Purity Limit:
    ≥ 97% (HPLC)
    MDL NO:
    MFCD00059024
    Molecular Formula:
    C16H10N2Na2O9S2
    Molecular Weight:
    484.36
    Specification Sheet SDS

  • Chrome pure blue BX

    Grade:
    CI 43830
    Synonym:
    Eriochrome azurol B
    Catalog Number:
    38535
    Grade:
    CI 43830
    CAS Number:
    1796-92-5
    MDL NO:
    MFCD00036446
    Molecular Formula:
    C23H14Cl2Na2O6
    Molecular Weight:
    503.24
    Specification Sheet SDS

  • Beryllon III

    Synonym:
    5-(4-Diethylamino-2-hydroxyphenylazo)-4-hydroxynaphthalene-2,7-disulfonic acid sodium salt
    Catalog Number:
    38581
    CAS Number:
    3627-04-1
    MDL NO:
    MFCD00070629
    Molecular Formula:
    C20H20N3NaO8S2
    Molecular Weight:
    517.5
    Specification Sheet SDS

  • Copper(II) phthalocyanine (a-form)

    Grade:
    CI 74160
    Purity:
    ≥ 90% (Assay by titration)
    Synonym:
    Phthalocyanine copper(II) (a-form)
    Catalog Number:
    38530
    Grade:
    CI 74160
    CAS Number:
    147-14-8
    Purity Limit:
    ≥ 90% (Assay by titration)
    MDL NO:
    MFCD00010719
    Molecular Formula:
    C32H16CuN8
    Molecular Weight:
    576.08
    Specification Sheet SDS

  • TNBT diformazan

    Hazmat
    Synonym:
    1,1'-(3,3'-Dimethoxy-4,4'-diphenylene)bis-3,5-di(p-nitrophenyl)diformazan
    Hazmat
    Catalog Number:
    38538
    CAS Number:
    19333-63-2
    MDL NO:
    MFCD00059831
    Molecular Formula:
    C40H30N12O10
    Molecular Weight:
    838.75
    Specification Sheet SDS

  • 6-Nitrofluorescein (isomer II)

    Purity:
    ≥ 98% (Assay by titration)
    Synonym:
    6-Nitro-3',6'-dihydroxyspiro[isobenzofuran-1(3H),9'-(9H)xanthen]-3-one (isomer II)
    Catalog Number:
    38559
    CAS Number:
    27402-68-2
    Purity Limit:
    ≥ 98% (Assay by titration)
    MDL NO:
    MFCD00059694
    Molecular Formula:
    C20H11NO7
    Molecular Weight:
    377.31
    Specification Sheet SDS

  • Pinakryptol yellow

    Catalog Number:
    38555
    CAS Number:
    25910-85-4
    MDL NO:
    MFCD00011967
    Molecular Formula:
    C21H22N2O7S
    Molecular Weight:
    446.47
    Specification Sheet SDS

  • 4,5,6,7-Tetrabromophenolphthalein

    Purity:
    ≥ 80% (Assay by titration)
    Catalog Number:
    38521
    CAS Number:
    13027-28-6
    Purity Limit:
    ≥ 80% (Assay by titration)
    MDL NO:
    MFCD00047314
    Molecular Formula:
    C20H10Br4O4
    Molecular Weight:
    633.91
    Specification Sheet SDS

  • Xylenol orange

    Synonym:
    3,3'-Bis[N,N-bis(carboxymethyl)aminomethyl]-o-cresolsulfonphthalein disodium salt
    Catalog Number:
    38511
    CAS Number:
    1202864-39-8
    Molecular Formula:
    C31H30N2Na2O13S
    Molecular Weight:
    716.62
    Specification Sheet SDS

  • Copper(II) phthalocyanine (b-form)

    Grade:
    CI 74160
    Purity:
    ≥ 93% (Assay by titration)
    Synonym:
    Phthalocyanine copper(II) (b-form)
    Catalog Number:
    38531
    Grade:
    CI 74160
    CAS Number:
    147-14-8
    Purity Limit:
    ≥ 93% (Assay by titration)
    MDL NO:
    MFCD00010719
    Molecular Formula:
    C32H16CuN8
    Molecular Weight:
    576.08
    Specification Sheet SDS

  • 6'-(Diethylamino)-1',3'-dimethylfluoran

    Purity:
    ≥ 98% (Assay by titration , HPLC)
    Catalog Number:
    38543
    CAS Number:
    21934-68-9
    Purity Limit:
    ≥ 98% (Assay by titration , HPLC)
    MDL NO:
    MFCD08276349
    Molecular Formula:
    C26H25NO3
    Molecular Weight:
    399.49
    Specification Sheet SDS

  • 2-(3,6-Dihexyloxyxanthen-9-yl)benzamide

    Purity:
    ≥ 97% (HPLC , N)
    Catalog Number:
    38536
    CAS Number:
    1820618-83-4
    Purity Limit:
    ≥ 97% (HPLC , N)
    Molecular Formula:
    C32H39NO4
    Molecular Weight:
    501.67
    Specification Sheet SDS

  • Phenolphthalein diphosphate pentasodium salt hydrate

    Purity:
    ≥ 95% (HPLC)
    Catalog Number:
    38546
    CAS Number:
    2382-56-1
    Purity Limit:
    ≥ 95% (HPLC)
    MDL NO:
    MFCD28386115
    Molecular Formula:
    C20H13Na5O11P2·xH2O
    Molecular Weight:
    606.21
    Specification Sheet SDS

  • Neo-tetrazolium diformazan

    Synonym:
    Tetrazolium neo, diformazan
    Catalog Number:
    38542
    CAS Number:
    21520-87-6
    MDL NO:
    MFCD00059009
    Molecular Formula:
    C38H30N8
    Molecular Weight:
    598.71
    Specification Sheet SDS

  • m-Methyl red

    Synonym:
    4-Dimethylaminoazobenzene-3'-carboxylic acid
    Catalog Number:
    38540
    CAS Number:
    20691-84-3
    MDL NO:
    MFCD00059641
    Molecular Formula:
    C15H15N3O2
    Molecular Weight:
    269.3
    Specification Sheet SDS

  • Leuco malachite green

    Purity:
    ≥ 98% (Assay by titration)
    Synonym:
    4,4'-Benzylidenebis(N,N-dimethylaniline)
    Catalog Number:
    38520
    CAS Number:
    129-73-7
    Purity Limit:
    ≥ 98% (Assay by titration)
    MDL NO:
    MFCD00008315
    Molecular Formula:
    C23H26N2
    Molecular Weight:
    330.48
    Specification Sheet SDS

  • 7,8-Dimethylalloxazine

    Purity:
    ≥ 98% (Assay by titration, HPLC)
    Synonym:
    Lumichrome
    Catalog Number:
    38506
    CAS Number:
    1086-80-2
    Purity Limit:
    ≥ 98% (Assay by titration, HPLC)
    MDL NO:
    MFCD00005021
    Molecular Formula:
    C12H10N4O2
    Molecular Weight:
    242.24
    Specification Sheet SDS

  • Ruthenium red

    Purity:
    ≥ 99% (Assay)
    Catalog Number:
    38508
    CAS Number:
    11103-72-3
    Purity Limit:
    ≥ 99% (Assay)
    MDL NO:
    MFCD00011479
    Molecular Formula:
    6Cl·O2Ru3·14NH3
    Molecular Weight:
    786.36
    Specification Sheet SDS

  • Methoxy red

    Purity:
    ≥ 85% (Assay by titration)
    Synonym:
    4-Methoxychrysoidine hydrochloride
    Catalog Number:
    38644
    CAS Number:
    68936-13-0
    Purity Limit:
    ≥ 85% (Assay by titration)
    MDL NO:
    MFCD00060224
    Molecular Formula:
    68936-13-0
    Molecular Weight:
    278.74
    Specification Sheet SDS

  • Fast red B salt 1,5-naphthalenedisulfonate

    Purity:
    ≥ 97% (HPLC)
    Synonym:
    Bis(2-methoxy-4-nitrophenyldiazonium) 1,5-naphthalenedisulfonate
    Catalog Number:
    38624
    CAS Number:
    61925-55-1
    Purity Limit:
    ≥ 97% (HPLC)
    MDL NO:
    MFCD00060048
    Molecular Formula:
    C24H18N6O12S2
    Molecular Weight:
    646.56
    Specification Sheet SDS

  • Alphamine red R base

    Purity:
    ≥ 90% (HPLC)
    Synonym:
    3-(4-Anilino-1-naphthylazo)-2,7-naphthalenedisulfonic acid
    Catalog Number:
    38615
    CAS Number:
    57322-42-6
    Purity Limit:
    ≥ 90% (HPLC)
    MDL NO:
    MFCD00135326
    Molecular Formula:
    C26H19N3O6S2
    Molecular Weight:
    533.57
    Specification Sheet SDS

  • 2,6-Bis[(2-hydroxyethyl)amino]toluene

    Purity:
    ≥ 98% (Assay by titration, GC)
    Synonym:
    2,2'-[(2-Methyl-1,3-phenylene)bis(azanediyl)]diethanol
    Catalog Number:
    38532
    CAS Number:
    149330-25-6
    Purity Limit:
    ≥ 98% (Assay by titration, GC)
    MDL NO:
    MFCD08703311
    Molecular Formula:
    C11H18N2O2
    Molecular Weight:
    210.28
    Specification Sheet SDS

  • Indophenol blue

    Grade:
    CI 49700
    Synonym:
    N-(4-Dimethylaminophenyl)-1,4-naphthoquinoneimine
    Catalog Number:
    38523
    Grade:
    CI 49700
    CAS Number:
    132-31-0
    MDL NO:
    MFCD00041739
    Molecular Formula:
    C18H16N2O
    Molecular Weight:
    276.34
    Specification Sheet SDS

  • Pontacyl violet 6R

    Grade:
    CI 16640
    Catalog Number:
    38618
    Grade:
    CI 16640
    CAS Number:
    5850-63-5
    MDL NO:
    MFCD00059522
    Molecular Formula:
    C20H12N2Na2O8S2
    Molecular Weight:
    518.42
    Specification Sheet SDS

  • Diamine green B

    Synonym:
    Chlorazol green
    Catalog Number:
    38589
    CAS Number:
    4335-09-5
    MDL NO:
    MFCD00042705
    Molecular Weight:
    0.0
    Specification Sheet SDS

  • Iron(III) hexacyanoferrate(II)

    Grade:
    CI 77510
    Purity:
    ≥ 30% (Assay by titration)
    Synonym:
    Iron(III) ferrocyanide
    Catalog Number:
    38527
    Grade:
    CI 77510
    CAS Number:
    14038-43-8
    Purity Limit:
    ≥ 30% (Assay by titration)
    MDL NO:
    MFCD00135663
    Molecular Formula:
    C18Fe7N18
    Molecular Weight:
    859.24
    Specification Sheet SDS

  • Methyl violet B base

    Catalog Number:
    38603
    CAS Number:
    52080-58-7
    MDL NO:
    MFCD00001656
    Molecular Formula:
    C24H27N3
    Molecular Weight:
    357.49
    Specification Sheet SDS

  • Kaempferol hydrate

    Grade:
    CI 75640
    Purity:
    ≥ 98% (Assay)
    Synonym:
    3,4',5,7-Tetrahydroxyflavone hydrate
    Catalog Number:
    38602
    Grade:
    CI 75640
    CAS Number:
    520-18-3
    Purity Limit:
    ≥ 98% (Assay)
    MDL NO:
    MFCD00016938
    Molecular Formula:
    C15H10O6·xH2O
    Molecular Weight:
    286.24
    Specification Sheet SDS

  • Tetrabromophenol blue disodium salt

    Synonym:
    Tetrabromophenoltetrabromosulfophthalein disodium salt
    Catalog Number:
    38674
    MDL NO:
    MFCD00070515
    Molecular Formula:
    C19H4Br8Na2O5S
    Molecular Weight:
    1029.51
    Specification Sheet SDS

  • Indigodisulfonic acid dipotassium salt

    Grade:
    CI 73015
    Purity:
    ≥ 90% (Assay by titration)
    Catalog Number:
    38526
    Grade:
    CI 73015
    CAS Number:
    13725-33-2
    Purity Limit:
    ≥ 90% (Assay by titration)
    MDL NO:
    MFCD00067311
    Molecular Formula:
    C16H8K2N2O8S2
    Molecular Weight:
    498.56
    Specification Sheet SDS

  • Ponceau SX

    Grade:
    CI 14700
    Catalog Number:
    38592
    Grade:
    CI 14700
    CAS Number:
    4548-53-2
    MDL NO:
    MFCD00046402
    Molecular Formula:
    C18H14N2Na2O7S2
    Molecular Weight:
    480.42
    Specification Sheet SDS

  • Methylxylenol blue

    Purity:
    ≥ 83% (HPLC)
    Catalog Number:
    37406
    CAS Number:
    29412-85-9
    Purity Limit:
    ≥ 83% (HPLC)
    MDL NO:
    MFCD00065250
    Molecular Formula:
    C33H32O13N2Na4S
    Molecular Weight:
    788.64
    Specification Sheet SDS

  • Variamine blue B

    Purity:
    ≥ 98% (Assay by titration)
    Synonym:
    4-Amino-4'-methoxydiphenylamine hydrochloride
    Catalog Number:
    37397
    CAS Number:
    3566-44-7
    Purity Limit:
    ≥ 98% (Assay by titration)
    MDL NO:
    MFCD00012989
    Molecular Formula:
    C13H14N2O·HCl
    Molecular Weight:
    250.73
    Specification Sheet SDS

  • Alizarin yellow GG

    Synonym:
    5-(3-Nitrophenylazo)salicylic acid sodium salt
    Catalog Number:
    37380
    CAS Number:
    584-42-9
    MDL NO:
    MFCD00044746
    Molecular Formula:
    C13H8N3O5Na
    Molecular Weight:
    309.21
    Specification Sheet SDS

  • Resorcinol

    Hazmat
    Grade:
    meets USP specifications
    Purity:
    99.0 - 100.5% (On dry basis)
    Synonym:
    1,3-Benzenediol
    Hazmat
    Catalog Number:
    37040
    Grade:
    meets USP specifications
    CAS Number:
    108-46-3
    Purity Limit:
    99.0 - 100.5% (On dry basis)
    MDL NO:
    MFCD00002269
    Molecular Formula:
    C6H4OH)2
    Molecular Weight:
    110.11
    SDS

  • Rutin hydrate

    Grade:
    meets USP / NF specifications
    Purity:
    95 - 102% (Assay by titration ,on dry basis)
    Synonym:
    Quercetin-3-rutinoside hydrate
    Catalog Number:
    32186
    Grade:
    meets USP / NF specifications
    CAS Number:
    207671-50-9
    Purity Limit:
    95 - 102% (Assay by titration ,on dry basis)
    MDL NO:
    MFCD00149490
    Molecular Formula:
    C27H30O16·H2O
    Molecular Weight:
    610.52
    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

  • Carminic acid

    Purity:
    ≥ 50% (Dye content)
    Synonym:
    Natural Red 4 
    Catalog Number:
    22948
    CAS Number:
    1390-65-4
    Purity Limit:
    ≥ 50% (Dye content)
    MDL NO:
    MFCD00167028
    Molecular Formula:
    C22H20O13
    Molecular Weight:
    492.39
    Specification Sheet SDS

  • Erythrosin B

    Grade:
    Certifiable Grade
    Purity:
    ≥ 87% (Dye content)
    Synonym:
    Acid Red 51 
    Catalog Number:
    22936
    Grade:
    Certifiable Grade
    CAS Number:
    16423-68-0
    Purity Limit:
    ≥ 87% (Dye content)
    MDL NO:
    MFCD00144257
    Molecular Formula:
    C20H6I4O5·2Na
    Molecular Weight:
    879.84
    Specification Sheet SDS

  • Allura Red 

    Purity:
    ≥ 86% (Dye content)
    Synonym:
    Food Red 17 
    Catalog Number:
    22915
    CAS Number:
    25956-17-6
    Purity Limit:
    ≥ 86% (Dye content)
    MDL NO:
    MFCD00059526
    Molecular Formula:
    C18H14N2O8S2·2Na
    Molecular Weight:
    496.43
    Specification Sheet SDS

  • Aurintricarboxylic acid [tri]ammonium salt

    Grade:
    ACS reagent
    Synonym:
    Aluminon
    Catalog Number:
    22907
    Grade:
    ACS reagent
    CAS Number:
    569-58-4
    MDL NO:
    MFCD00040925
    Molecular Formula:
    C22H14O9·3H3N
    Molecular Weight:
    473.44
    Specification Sheet SDS

  • Bromophenol Red Free acid 

    Purity:
    ≥ 95% (Dye content)
    Synonym:
    5',5''-Dibromophenolsulfonephthalein
    Catalog Number:
    22904
    CAS Number:
    2800-80-8
    Purity Limit:
    ≥ 95% (Dye content)
    MDL NO:
    MFCD00023014
    Molecular Formula:
    C19H12Br2O5S
    Molecular Weight:
    512.17
    Specification Sheet SDS

  • Benzopurpurin 4B 

    Synonym:
    Direct Red 2 
    Catalog Number:
    22877
    CAS Number:
    992-59-6
    MDL NO:
    MFCD00012410
    Molecular Formula:
    C34H26N6O6S2·2Na
    Molecular Weight:
    724.73
    Specification Sheet SDS

  • Orange G

    Grade:
    Certifiable Grade
    Purity:
    ≥ 97% (Dye content)
    Synonym:
    Acid Orange 10 
    Catalog Number:
    22880
    Grade:
    Certifiable Grade
    CAS Number:
    1936-15-8
    Purity Limit:
    ≥ 97% (Dye content)
    MDL NO:
    MFCD00012457
    Molecular Formula:
    C16H10N2Na2O7S2
    Molecular Weight:
    452.38
    Specification Sheet SDS

  • Quinaldine Red 

    Purity:
    ≥ 95% (Dye content)
    Synonym:
    (2-[2-(4-Dimethylamino)phenyl]ethenyl)-1-ethylquinolinium iodide
    Catalog Number:
    22872
    CAS Number:
    117-92-0
    Purity Limit:
    ≥ 95% (Dye content)
    MDL NO:
    MFCD00011968
    Molecular Formula:
    C21H23N2I
    Molecular Weight:
    430.33
    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

  • p-Rosolic acid

    Synonym:
    Aurin
    Catalog Number:
    22777
    CAS Number:
    603-45-2
    MDL NO:
    MFCD00001624
    Molecular Formula:
    C19H14O3
    Molecular Weight:
    290.32
    Specification Sheet SDS

  • 1,2,4-Trihydroxy-9,10-anthracenedione

    Purity:
    ≥ 95% (HPLC)
    Synonym:
    Purpurin
    Catalog Number:
    22772
    CAS Number:
    81-54-9
    Purity Limit:
    ≥ 95% (HPLC)
    MDL NO:
    MFCD00001203
    Molecular Formula:
    C14H8O5
    Molecular Weight:
    256.21
    Specification Sheet SDS
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