Terteriary Colors Stains Dyes and Indicators

Methyl Viologen hydrate, 98%, ACROS Organics™ Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: Methyl Viologen hydrate Name Note: 98% CAS: 1910-42-5 Assay: ≥97.5% (on dry substance) Assay Percent Range: 98% Molecular Formula: C12H14Cl2N2·xH2O Formula Weight: 257.15 MDL Number: MFCD00150001 Synonym: Paraquat, dichloride

Rhodanine 99%, ACROS Organics™

Chemical Name or Material: Rhodanine Name Note: 99% CAS: 141-84-4 Assay: ≥98.5% Assay Percent Range: 99% Molecular Formula: C3H3NOS2 Formula Weight: 133.2 MDL Number: MFCD00005488 Synonym: 2-Thioxo-4-thiazolidinone

Safranin O Products for Science Education

Chemical Name or Material: Safranin O CAS: 477-73-6 Molecular Formula: C20H19N4Cl Linear Formula: C20H49ClN4 Formula Weight: 350.85 Synonym: Basic Red 2

Thymolphthalein, Indicator, Pure, ACROS Organics™

Chemical Name or Material: Thymolphthalein Name Note: Indicator CAS: 125-20-2 Purity Grade: Extra Pure Molecular Formula: C28H30O4 Formula Weight: 430.53 MDL Number: MFCD00005909 Synonym: TP

p-Naphtholbenzein Indicator Solution, Fisher Chemical Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: p-Naphtholbenzein Indicator Solution CAS: 145-50-6 CAS: 108-88-3 CAS: 67-63-0 CAS: 7732-18-5 MDL Number: MFCD00078492

2,6-Dichloroindophenol, Sodium Salt Hydrate, ACROS Organics™ Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: 2, 6-Dichloroindophenol, sodium salt hydrate Assay: ≥98.0% (on dry substance) (Total base) Assay Percent Range: 98+% Molecular Formula: C12H6Cl2NNaO2·xH2O Formula Weight: 290.07 Synonym: Tillman's reagent hydrate

2,6-Dichloroindophenol Sodium Salt Products for Science Education

Chemical Name or Material: 2, 6-Dichloroindophenol Sodium Salt CAS: 620-45-1 Linear Formula: NaOC6H4N·C6H2(Cl2)·O Formula Weight: 290.08 Synonym: 2, 6-Dichlorophenol Indophenol Sodium Salt

Aceto-Orcein Solution, 2% Products for Science Education

Chemical Name or Material: Aceto-Orcein Solution, 2% CAS: 64-19-7 CAS: 1400-62-0 CAS: 7732-18-5 Assay Percent Range: 31.5% v/v Synonym: 2% Solution

Rhodamine B, Fisher Chemical

Chemical Name or Material: Rhodamine B CAS: 81-88-9 Molecular Formula: C28H31 ClN2O3 Formula Weight: 479 MDL Number: MFCD00011931 Synonym: Tetraethylrhodamine

Aluminon, ACROS Organics™

Chemical Name or Material: Aluminon CAS: 569-58-4 Molecular Formula: C22H23N3O9 Formula Weight: 473.44 MDL Number: MFCD00040925 Synonym: Aurintricarboxylic acid, triammonium salt

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

Chemical Name or Material: Fluorescamine CAS: 38183-12-9 Purity Grade: Pure Molecular Formula: C17H10O4 Formula Weight: 278.26

Thioflavin T, ACROS Organics™

Chemical Name or Material: Thioflavin T CAS: 2390-54-7 Molecular Formula: C17H19ClN2S Formula Weight: 318.85 MDL Number: MFCD00011944 Synonym: Basic Yellow 1

Alfa Aesar™ Van Dyke Brown

Chemical Name or Material: Van Dyke Brown CAS: 72669-22-8 MDL Number: MFCD00148765 Synonym: Natural Brown 8

Safranine O, 85%, ACROS Organics™

Chemical Name or Material: Safranine O Name Note: Pure CAS: 477-73-6 Purity Grade: Pure Assay Percent Range: 85% Molecular Formula: C20H19ClN4 Formula Weight: 350.84 MDL Number: MFCD00011759 Synonym: 3, 7-Diamino-2, 8-dimethyl-5-phenylphenazinium chloride

Phenolphthalein in IPA Solution Products for Science Education

Chemical Name or Material: Phenolphthalein in IPA Solution CAS: 67-63-0 CAS: 77-09-8 CAS: 7732-18-5 Formula Weight: Mixture

2',7'-Dichlorofluorescein, pure, ACROS Organics™

Chemical Name or Material: 2', 7'-Dichlorofluorescein CAS: 76-54-0 Purity Grade: Extra Pure Molecular Formula: C20H10Cl2O5 Formula Weight: 401.2 MDL Number: MFCD00005047 Synonym: 2',7'-Dichloro-3',6'-dihydroxyspiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one

Resazurin, sodium salt, pure, high purity biological stain, ACROS Organics™

Chemical Name or Material: Resazurin, sodium salt CAS: 62758-13-8 Purity Grade: Pure Molecular Formula: C12H6NNaO4 Formula Weight: 251.17 MDL Number: MFCD00005036 Synonym: 7-Hydroxy-3H-phenoxazin-3-one 10-oxide, sodium salt

Biebrich Scarlet, dye content approx. 70%, ACROS Organics™

Chemical Name or Material: Biebrich Scarlet Name Note: 99% CAS: 4196-99-0 Assay Percent Range: 99% Molecular Formula: C22H14N4Na2O7S2 Formula Weight: 556.48 MDL Number: MFCD00003891 Synonym: Acid Red 66

Alfa Aesar™ Ponceau S, Electrophoresis Grade

Chemical Name or Material: Ponceau S CAS: 6226-79-5 Purity Grade: Electrophoresis Grade Molecular Formula: C22H12N4Na4O13S4 Formula Weight: 760.58 MDL Number: MFCD00003892 Synonym: C.I. 27195

Tropaeolin O, pure, ACROS Organics™

Chemical Name or Material: Tropaeolin O CAS: 547-57-9 Purity Grade: Extra Pure Molecular Formula: C12H9N2NaO5S Formula Weight: 316.26 MDL Number: MFCD00007499 Synonym: 4-(2, 4-Dihydroxyphenylazo)benzenesulfonic acid, sodium salt

Phenolphthalein Solution, Alcoholic 0.5%, Fisher Chemical Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: Phenolphthalein Solution, Alcoholic 0.5% CAS: 67-63-0 CAS: 77-09-8 CAS: 7732-18-5 Assay Percent Range: 0.5% MDL Number: MFCD00005913

Alfa Aesar™ Pyronin Y

Chemical Name or Material: Pyronin Y CAS: 92-32-0 Molecular Formula: C17H19ClN2O Formula Weight: 302.8 MDL Number: MFCD00011725 Beilstein: 3795789 Merck Index: 14,8007 Synonym: C.I. 45005; Pyronin G

Thymolphthalein Products for Science Education

Chemical Name or Material: Thymolphthalein CAS: 125-20-2 Purity Grade: Reagent Grade Assay Percent Range: >95% Linear Formula: C28H30O4 Formula Weight: 430.52 Synonym: TP

New Fuchsin, ACROS Organics™

Chemical Name or Material: New Fuchsin CAS: 3248-91-7 Molecular Formula: C22H23N3·HCl Formula Weight: 365.89 MDL Number: MFCD00012567 Synonym: Basic Violet 2

Ninhydrin, Reagent ACS, ACROS Organics™

Chemical Name or Material: Ninhydrin CAS: 485-47-2 Purity Grade: ACS Reagent Grade Molecular Formula: C9H6O4 Formula Weight: 178.14 MDL Number: MFCD00003791 Synonym: 1, 2, 3-Indantrione

Wright's Blood Stain Solution Products for Science Education

Chemical Name or Material: Wright's Blood Stain Solution CAS: 67-56-1 CAS: 68988-92-1 Assay Percent Range: 0.97

Phloxine B (Certified Biological Stain), Fisher Chemical

Chemical Name or Material: Phloxine B CAS: 18472-87-2 Purity Grade: Certified Biological Stain Molecular Formula: C20H2Br4 Cl4Na2O5 Formula Weight: 829.66 MDL Number: MFCD00070627 Synonym: Acid Red 92

Hematoxylin Products for Science Education

Chemical Name or Material: Hematoxylin CAS: 517-28-2 Linear Formula: C16H14O6 Formula Weight: 302.27 Synonym: Hematoxiline

Lissamine Rhodamine B Sulfonyl Chloride, +99%, ACROS Organics™ Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: Lissamine rhodamine B sulfonyl chloride Name Note: 99+% CAS: 62796-29-6 Purity Grade: Extra Pure Assay Percent Range: 99+% Molecular Formula: C27H29ClN2O6S2 Formula Weight: 577.11 MDL Number: MFCD00042001 Synonym: Sulforhodamine B sulfonyl chloride

Resazurin, Alfa Aesar

Chemical Name or Material: Resazurin CAS: 62758-13-8 Molecular Formula: C12H6NNaO4 Formula Weight: 251.18

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