Terteriary Colors Stains Dyes and Indicators

Resazurin, Sodium Salt, 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

Carmine Products for Science Education

Chemical Name or Material: Carmine CAS: 1390-65-4 Assay Percent Range: 100% w/v Molecular Formula: C22H20O13/Al/Ca lake Formula Weight: 184.14 Synonym: Aluminum Lake

Indicator Solution, Universal Products for Science Education

Chemical Name or Material: Universal Indicator Solution CAS: 34722-90-2 CAS: 64-17-5 CAS: 547-58-0 CAS: 845-10-3 CAS: 518-51-4 Assay Percent Range: <0.2% w/v Synonym: Universal pH Indicator

Sudan II, pure, ACROS Organics™

Chemical Name or Material: Sudan II CAS: 3118-97-6 Purity Grade: Extra Pure Molecular Formula: C18H16N2O Formula Weight: 276.33 MDL Number: MFCD00003896 Synonym: 1-(2, 4-Dimethylphenylazo)-2-naphthol

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

Alizarin 97%, ACROS Organics™

Chemical Name or Material: Alizarin Name Note: 97% CAS: 72-48-0 CAS Min %: 96.0 CAS Max %: 100.0 Purity Grade: Pure Assay Percent Range: 97% Molecular Formula: C14H8O4 Formula Weight: 240.21 MDL Number: MFCD00001201 Synonym: 1, 2-Dihydroxyanthraquinone

Safranine O, 95%, ACROS Organics™

Chemical Name or Material: Safranine O Name Note: Pure CAS: 477-73-6 Purity Grade: Pure Assay Percent Range: 95% Molecular Formula: C20H19ClN4 Formula Weight: 350.84 MDL Number: MFCD00011759 Synonym: 3, 7-Diamino-2, 8-dimethyl-5-phenylphenazinium chloride

Phenolphthalein, Indicator, ACROS Organics™

Chemical Name or Material: Phenolphthalein CAS: 77-09-8 Purity Grade: Pure Assay: 98.0 to 102.0% Assay Percent Range: 98.5% Molecular Formula: C20H14O4 Formula Weight: 318.32 MDL Number: MFCD00005913

Rhodamine B Products for Science Education

Chemical Name or Material: Rhodamine B CAS: 81-88-9 Assay Percent Range: >97% w/v Linear Formula: C28H31ClN2O3 Formula Weight: 479.01 Synonym: Basic Violet 10

Rose Bengal, 85%, pure, certified, 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

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

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

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

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

Alizarin Complexone Dihydrate, Indicator Grade, ACROS Organics™

Chemical Name or Material: Alizarin Complexone dihydrate CAS: 455303-00-1 Purity Grade: Pure Assay: 97 to 103% (on dry substance) Molecular Formula: C19H15NO8·2H2O Formula Weight: 421.35 MDL Number: MFCD00149067 Synonym: (3, 4-Dihydroxy-2-anthraquinonyl)methyliminodiacetic acid dihydrate

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

Ninhydrin, ozone friendly ready to use spray for TLC, ACROS Organics™ Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: Ninhydrin CAS: 485-47-2 CAS: 106-97-8 CAS: 106-97-8 CAS: 74-98-6 CAS: 71-36-3 MDL Number: MFCD00003791

Thyodene™ (Starch Soluble) Indicator, Fisher Chemical Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: Thyodene™ Indicator CAS: 9005-84-9 Molecular Formula: C6H10O5X MDL Number: MFCD00082026 Synonym: Starch, Soluble

Auramine O, pure, biological stain, ACROS Organics™

Chemical Name or Material: Auramine O CAS: 2465-27-2 Purity Grade: Extra Pure Molecular Formula: C17H21N3·HCl Formula Weight: 303.83 MDL Number: MFCD00012484 Synonym: 4, 4'-(Imidocarbonyl)bis(N, N-dimethylaniline) monohydrochloride

Rhodamine B Staining Solution Products for Science Education

Chemical Name or Material: Rhodamine B Staining Solution, 1% CAS: 81-88-9 CAS: 7732-18-5 Assay Percent Range: 1% w/v Synonym: Basic Violet 10

Rhodamine B

Chemical Name or Material: Rhodamine B CAS: 81-88-9 Molecular Formula: C28H31ClN2O3 Formula Weight: 479.02 MDL Number: MFCD00011931 Beilstein: 4119648 Merck Index: 14,8183

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

Chromotrope 2R, pure, ACROS Organics™

Chemical Name or Material: Chromotrope 2R CAS: 839148 Purity Grade: Extra Pure Molecular Formula: C16H10N2Na2O8S2 Formula Weight: 468.35 MDL Number: MFCD00003955 Synonym: 4, 5-Dihydroxy-3-phenylazo-2, 7-naphthalenedisulfonic acid

Calmagite, indicator grade, Alfa Aesar

Chemical Name or Material: Calmagite CAS: 3147-14-6 Purity Grade: Indicator Grade Molecular Formula: C17H14N2O5S Formula Weight: 358.37

o-Cresolphthalein Complexone Sodium Salt, ACROS Organics™

Chemical Name or Material: o-Cresolphthalein complexone sodium salt CAS: 62698-54-8 Purity Grade: Extra Pure Molecular Formula: C32H28N2Na4O12 Formula Weight: 724.53 MDL Number: MFCD00066371

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

Chemical Name or Material: Rhodamine B base CAS: 509-34-2 Assay: ≥98.5% Assay Percent Range: 99% Molecular Formula: C28H30N2O3 Formula Weight: 442.55 MDL Number: MFCD00066967 Synonym: C.I. 45170.1

Orcein Biological Stain Products for Science Education

Chemical Name or Material: Orcein Biological Stain CAS: 1400-62-0 Formula Weight: 500.18

Fuchsin Acid (Certified Biological Stain), Fisher Chemical

Chemical Name or Material: Fuchsin Acid CAS: 3244-88-0 Purity Grade: Certified Biological Stain Assay: ≥55% Molecular Formula: C20H17N3O9S3Na2 Formula Weight: 585.54 MDL Number: MFCD00013286 Synonym: Acid Magenta

Fluoresceinamine Isomer I 99%, ACROS Organics™

Chemical Name or Material: Fluoresceinamine isomer I Name Note: 99% CAS: 3326-34-9 Purity Grade: Pure Assay: 95% (typically) Assay Percent Range: 99% Molecular Formula: C20H13NO5 Formula Weight: 347.32 MDL Number: MFCD00005052 Synonym: 5-Aminofluorescein

Carmine, High Purity Biological Stain (Alum Lake of Carminic Acid), ACROS Organics™ Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: Carmine CAS: 1390-65-4 Purity Grade: Pure Assay: ≥42.0% (carminic acid) MDL Number: MFCD00167031 Synonym: C.I. 75470

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