Stains Dyes and Indicators

Thionin acetate, pure, high purity biological stain, ACROS Organics™

Chemical Name or Material: Thionin acetate Name Note: Pure CAS: 78338-22-4 Purity Grade: Pure Molecular Formula: C12H10N3S·C2H3O2 Formula Weight: 287.33 MDL Number: MFCD00081194 Synonym: 3, 7-Diaminophenothiazin-5-ium acetate

Fluorexon, ACROS Organics™

Chemical Name or Material: Fluorexon CAS: 1461-15-0 Molecular Formula: C30H26N2O13 Formula Weight: 622.54 MDL Number: MFCD00005049 Synonym: Bis[N, N-bis(carboxymethyl)aminomethyl]fluorescein

Naringin, 97%, ACROS Organics™

Chemical Name or Material: Naringin CAS: 10236-47-2 CAS Min %: 96.0 CAS Max %: 100.0 Assay: ≥96.0% Assay Percent Range: 97% Molecular Formula: C27H32O14 Formula Weight: 580.53 MDL Number: MFCD00148888

Alfa Aesar™ m-Cresol Purple

Chemical Name or Material: m-Cresol Purple CAS: 2303-01-7 Molecular Formula: C21H18O5S Formula Weight: 382.44 MDL Number: MFCD00005871 Beilstein: 350314 Merck Index: 14,2577 Synonym: m-Cresolsulfonephthalein

Copper phthalocyanine, dye content ca 95%, ACROS Organics™

Chemical Name or Material: Copper phthalocyanine Name Note: dye content ca 95% CAS: 147-14-8 Assay: ≥94% (ex Cu) Molecular Formula: C32H16CuN8 Formula Weight: 576.08 MDL Number: MFCD00010719 Synonym: C.I. 74160

Thermo Scientific™ Richard-Allan Scientific™ Signature Series Hematoxylin 1 7221 Available on GSA/VA Contract for Federal Government customers only.

Yield visually similar results to Gills 1 and 2 with this uniquely formulated product.

Crystal Violet (Certified Biological Stain), Fisher Chemical

Chemical Name or Material: Crystal Violet CAS: 548-62-9 Purity Grade: Certified Biological Stain Molecular Formula: C25H30ClN3 Formula Weight: 407.98 MDL Number: MFCD00011750 Synonym: Basic Violet 3

Phloxine B, Certified, 85%, ACROS Organics™ Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: Phloxine B CAS: 18472-87-2 Purity Grade: Pure Assay Percent Range: 85% Molecular Formula: C20 H2 Br4 Cl4 Na2 O5 Formula Weight: 829.64 MDL Number: MFCD00005061 Synonym: Acid Red 92

Fuchsin Acid Staining Solution, 1% Products for Science Education

Chemical Name or Material: Fuchsin Acid Staining Solution, 1% CAS: 3244-88-0 CAS: 7732-18-5 Assay Percent Range: 1% w/v

Rhodamine 6G, pure, ACROS Organics™

Chemical Name or Material: Rhodamine 6G CAS: 989-38-8 Purity Grade: Pure Molecular Formula: C28H31ClN2O3 Formula Weight: 479.01 MDL Number: MFCD00012665 Synonym: Basic Red 1

Schiff Reagent Solution, ACROS Organics™

Chemical Name or Material: Schiff reagent solution CAS: 632-99-5 MDL Number: MFCD00081985

Alizarin Red S, FSE Products for Science Education

Chemical Name or Material: Alizarin Red S CAS: 130-22-3 Molecular Formula: C14H7NaO7S Linear Formula: C14H7NaO7S Formula Weight: 342.26 Synonym: Mordant Red 3

Phenol Red, ACROS Organics™

Chemical Name or Material: Phenol Red Name Note: Pure CAS: 143-74-8 Purity Grade: ACS Reagent Grade Molecular Formula: C19H14O5S Formula Weight: 354.38 MDL Number: MFCD00003552 Synonym: Phenolsulfonephthalein

Rose Bengal Products for Science Education

Chemical Name or Material: Rose Bengal CAS: 632-69-9 Assay Percent Range: 100% w/v Linear Formula: C20H2Cl4I4Na2O5 Formula Weight: 1019.43 Synonym: Acid Red 94

Coumarin 314, 99%, pure, laser grade, ACROS Organics™ Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: Coumarin 314 CAS: 55804-66-5 Purity Grade: Laser Grade Assay Percent Range: 99% Molecular Formula: C18H19NO4 Formula Weight: 313.35 MDL Number: MFCD00051334 Synonym: 1,2,4,5,3H,6H,10H-Tetrahydro-9-carbethoxy[1]benzopyrano(9,9a,1-gh)-quinolizin-10-one

Bromocresol Purple, sodium salt, pure, water soluble, indicator, ACROS Organics™

Chemical Name or Material: Bromocresol Purple, sodium salt Name Note: Water soluble, Indicator, Pure CAS: 62625-30-3 Purity Grade: Pure Molecular Formula: C21H15Br2NaO5S Formula Weight: 562.2 MDL Number: MFCD00148896 Synonym: 5';, 5';';-Dibromo-o-cresolsulfonephthalein, sodium salt

Phenolphthalein, For analysis ACS, ACROS Organics™

Chemical Name or Material: Phenolphthalein CAS: 77-09-8 Purity Grade: ACS Reagent Grade Molecular Formula: C20H14O4 Formula Weight: 318.32 MDL Number: MFCD00005913

Thermo Scientific™ Shandon™ Gill™ Hematoxylin Available on GSA/VA Contract for Federal Government customers only.

Achieve fast and convenient results, while maintaining complete control over stain intensity with Thermo Scientific™ Shandon™ Gill™ Hematoxylin, which has mucoid staining.

Alfa Aesar™ Sudan Black B

Chemical Name or Material: Sudan Black B CAS: 4197-25-5 Molecular Formula: C29H24N6 Formula Weight: 456.55 MDL Number: MFCD00006919 Beilstein: 723248 Merck Index: 14,8885 Synonym: C.I. 26150; Solvent Black 3

Alfa Aesar™ Amido Black 10B, 0.2% v/v soln. in 5% acetic acid

Chemical Name or Material: Amido Black 10B CAS: 1064-48-8 Molecular Formula: C22H14N6Na2O9S2 Formula Weight: 616.49 MDL Number: MFCD00004017 Beilstein: 5374263 Synonym: Acid black 1; C.I. 20470

Fluorescein Disodium Salt Dihydrate 90%, ACROS Organics™

Chemical Name or Material: Fluorescein disodium salt dihydrate Name Note: 90% CAS: 518-47-8 Purity Grade: Extra Pure Assay Percent Range: 90% Molecular Formula: C20H10Na2O5·2H2O Formula Weight: 412.3 MDL Number: MFCD00150814 Synonym: Acid Yellow 73 dihydrate

Methyl Violet 2B, ACROS Organics™ Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: Methyl Violet 2B Name Note: Pure CAS: 8004-87-3 Purity Grade: Extra Pure Molecular Formula: C24H28ClN3 Formula Weight: 393.95 MDL Number: MFCD00012568 Synonym: Basic Violet 1

Thermo Scientific™ Shandon™ Eosin Y Cytoplasmic Counterstain Available on GSA/VA Contract for Federal Government customers only.

Produce brilliant staining with Thermo Scientific™ Shandon™ Eosin-Y, a fast-acting cytoplasmic counterstain.

Bordeaux R, pure, ACROS Organics™

Chemical Name or Material: Bordeaux R CAS: 5858-33-3 Purity Grade: Pure Molecular Formula: C20H12N2Na2O7S2 Formula Weight: 502.41 MDL Number: MFCD00003887 Synonym: 3-Hydroxy-4-(1-naphthylazo)-2, 7-naphthalenedisulfonic acid, disodium salt

Alfa Aesar™ Neutral Red

Chemical Name or Material: Neutral Red CAS: 553-24-2 Molecular Formula: C15H17ClN4 Formula Weight: 288.78 MDL Number: MFCD00012651 Beilstein: 3918740 Merck Index: 14,6488 Synonym: Basic Red 5; C.I. 50040

Bromothymol Blue Solution, 0.04% Products for Science Education

Chemical Name or Material: Bromothymol Blue Solution, 0.04% CAS: 62625-28-9 CAS: 7732-18-5 CAS: 7732-18-5 Physical Form: Liquid Assay Percent Range: 0.04% w/v Formula Weight: 646.37

Prussian Blue, pure, ACROS Organics™ Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: Prussian Blue CAS: 14038-43-8 Purity Grade: Pure Molecular Formula: C18Fe7N18 Linear Formula: Fe4[Fe(CN)6]3 Formula Weight: 859.25 MDL Number: MFCD00135663 Synonym: C.I. 77510

Alfa Aesar™ Bromophenol Blue, ACS

Chemical Name or Material: Bromophenol Blue CAS: 115-39-9 Purity Grade: ACS Grade Molecular Formula: C19H10Br4O5S Formula Weight: 669.98 MDL Number: MFCD00005875 Beilstein: 61698 Merck Index: 14,1444

Methyl Red, Sodium Salt (Certified ACS), Fisher Chemical

Chemical Name or Material: Methyl Red, Sodium Salt CAS: 845-10-3 Purity Grade: Certified ACS Grade Molecular Formula: C15H14N3O2Na Linear Formula: 4-(CH3)2NC6H4-N:N-2-(CO2Na)C6H4 Formula Weight: 291.28 MDL Number: MFCD00002426 Synonym: Acid Red 2, Sodium Salt

Methylene Blue hydrate, pure, ACROS Organics™ Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: Methylene Blue hydrate CAS: 122965-43-9 Purity Grade: Pure Assay: ≥70% (TiCl3-titration) Molecular Formula: C16H18ClN3S·xH2O Formula Weight: 319.85 Synonym: Basic Blue 9 hydrate

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