Terteriary Colors Stains and Dyes and Indicators

IR-140, Laser Grade 95%, ACROS Organics™

Chemical Name or Material: IR-140 Name Note: 95% CAS: 53655-17-7 Purity Grade: Extra Pure Assay Percent Range: 95% Molecular Formula: C39H34Cl3N3O4S2 Formula Weight: 778.73 MDL Number: MFCD00011957

2',7'-Dichlorofluorescein, ACS reagent, ACROS Organics™

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

Safranin O (Certified Biological Stain), Fisher Chemical

Chemical Name or Material: Safranin O CAS: 477-73-6 Purity Grade: Certified Biological Stain Molecular Formula: C20H19ClN4 Formula Weight: 350.85 MDL Number: MFCD00011759 Synonym: Basic Red 2

Litmus Products for Science Education

Chemical Name or Material: Litmus CAS: 1393-92-6 Assay Percent Range: >99% w/v Formula Weight: ≈3300

Hematoxylin (Certified Biological Stain), Fisher Chemical Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: Hematoxylin CAS: 517-28-2 Purity Grade: Certified Biological Stain Molecular Formula: C16H14O6 · xH2O Formula Weight: 302.28 MDL Number: MFCD00078111 Synonym: Hydroxybrasilin

Rhodamine 110, Laser Grade, 99%, ACROS Organics™

Chemical Name or Material: Rhodamine 110 CAS: 13558-31-1 Purity Grade: Pure Assay: ≥98.5% Assay Percent Range: 98+% Molecular Formula: C20H15ClN2O3 Formula Weight: 366.79

orcein, ACROS Organics™

Chemical Name or Material: orcein CAS: 1400-62-0 Purity Grade: Extra Pure MDL Number: MFCD00062310 Synonym: Natural Red 28

Litmus Solution, 0.5% Products for Science Education

Chemical Name or Material: Litmus Solution, 0.5% CAS: 1393-92-6 CAS: 7732-18-5 Assay Percent Range: 0.5% w/v

Pararosaniline chloride, pure, high purity biological stain, ACROS Organics™

Chemical Name or Material: Pararosaniline chloride CAS: 569-61-9 Purity Grade: Pure Molecular Formula: C19H17N3·HCl Formula Weight: 323.83 MDL Number: MFCD00001657 Synonym: Basic Fuchsin

Rhodamine 123, +99%, ACROS Organics™ Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: Rhodamine 123 Name Note: 99+% CAS: 62669-70-9 Purity Grade: Extra Pure Assay Percent Range: 99+% Molecular Formula: C21H17ClN2O3 Formula Weight: 380.82 MDL Number: MFCD00012664

Fluorescein, ACROS Organics™

Chemical Name or Material: Fluorescein CAS: 2321-07-5 Purity Grade: Pure Molecular Formula: C20H12O5 Formula Weight: 332.3 MDL Number: MFCD00005050

Rose Bengal, 85%, pure, high purity, Biological stain, ACROS Organics™

Chemical Name or Material: Rose Bengal CAS: 632-69-9 Purity Grade: Pure Assay Percent Range: 85% Molecular Formula: C20H2Cl4I4Na2O5 Formula Weight: 1017.65 MDL Number: MFCD00005043 Synonym: Acid Red 94

Xylene Cyanol FF 85%, ACROS Organics™ Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: Xylene cyanol Name Note: 85% CAS: 4463-44-9 Purity Grade: Extra Pure Molecular Formula: C25H27N2NaO7S2 Formula Weight: 554.61 MDL Number: MFCD00019481 Synonym: C.I. 43535

Ninhydrin, spectrophotometric grade, ACROS Organics™

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

Leishman stain, pure, ACROS Organics™

Chemical Name or Material: Leishman stain CAS: 12627-53-1 Purity Grade: Pure MDL Number: MFCD00131498 Synonym: Eosin Methylene Blue according to Leishman

Giemsa Stain (Powder/Certified Biological Stain), Fisher Chemical Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: Giemsa Stain CAS: 51811-82-6 Purity Grade: Certified Biological Stain Physical Form: Solid MDL Number: MFCD00081642

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

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

Schiff Reagent Solution, ACROS Organics™

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

Thionin Solution Products for Science Education

Chemical Name or Material: Thionin Solution CAS: 581-64-6 CAS: 7732-18-5 Physical Form: Liquid Assay Percent Range: 0.006 Synonym: C.I. 52000

Coumarin, 99+%, ACROS Organics™

Chemical Name or Material: Coumarin Name Note: 99+% CAS: 91-64-5 Assay: ≥99.0% Assay Percent Range: 99+% Molecular Formula: C9H6O2 Formula Weight: 146.15 MDL Number: MFCD00006850 Synonym: 2H-1-Benzopyran-2-one

Fluorescein diacetate, 97%

Chemical Name or Material: Fluorescein diacetate CAS: 596-09-8 Molecular Formula: C24H16O7 Formula Weight: 416.39 MDL Number: MFCD00005062 Beilstein: 62575

Fluorescein, disodium salt, pure, ACROS Organics™

Chemical Name or Material: Fluorescein, disodium salt CAS: 518-47-8 Purity Grade: Pure Molecular Formula: C20H10Na2O5 Formula Weight: 376.27 Synonym: Acid Yellow 73

Phenolphthalein Disulfate, Tripotassium Salt Trihydrate, 98%, ACROS Organics™ Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: Phenolphthalein disulfate, tripotassium salt trihydrate CAS: 62625-16-5 Purity Grade: Extra Pure Assay: ≥97.5% Assay Percent Range: 98% Molecular Formula: C20H13K3O11S2·3H2O Formula Weight: 664.78 MDL Number: MFCD00150195

Stains-all, 97%, pure, ACROS Organics™ Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: Stains-all Name Note: 97% CAS: 7423-31-6 Purity Grade: Pure Assay: ≥96.0% Assay Percent Range: 97% Molecular Formula: C30H27BrN2S2 Formula Weight: 559.59 MDL Number: MFCD00078788 Synonym: 1-Ethyl-2-[3-(1-ethylnaphtho[1, 2-d]thiazolin-2-ylidene)-2-methylpropenyl]naphtho[1, 2-d]thiazolium bromide

Hematoxylin, Certified 90%, ACROS Organics™ Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: Hematoxylin CAS: 517-28-2 Purity Grade: Pure Assay Percent Range: 85% Molecular Formula: C16H14O6·xH2O Formula Weight: 302.27 Synonym: C.I. 75290

Xylidine Ponceau 2R, pure, ACROS Organics™

Chemical Name or Material: Xylidine Ponceau 2R CAS: 3761-53-3 Purity Grade: Extra Pure Molecular Formula: C18H14N2Na2O7S2 Formula Weight: 480.41 MDL Number: MFCD00003897 Synonym: 4-(2, 4-Dimethylphenylazo)-3-hydroxy-2, 7-naphthalenedisulfonic acid

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

Chemical Name or Material: Rhodamine B CAS: 81-88-9 Purity Grade: Pure Molecular Formula: C28H31ClN2O3 Formula Weight: 479.01 MDL Number: MFCD00011931 Synonym: Basic Violet 10

Azomethine-H hydrate, Alfa Aesar

Chemical Name or Material: Azomethine-H Name Note: hydrate CAS: 32266-60-7 Physical Form: Crystalline Molecular Formula: C17H13NO8S2·XH<cms Formula Weight: 423.40 (anhydrous)

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

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