Terteriary Colors Stains and Dyes and Indicators

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

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

Giemsa Solution Products for Science Education

Chemical Name or Material: Giemsa Solution CAS: 67-56-1 CAS: 51811-82-6 CAS: 56-81-5 Assay Percent Range: 50% v/v

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

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

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

Thymolphthalein Solution, 0.04% Products for Science Education

Chemical Name or Material: Thymolphthalein Solution, 0.04% CAS: 64-17-5 CAS: 67-63-0 CAS: 67-56-1 CAS: 18-1-1 CAS: 125-20-2 Assay Percent Range: 0.9996

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

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

α-Naphtholphthalein, pure, indicator, ACROS Organics™ Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: α-Naphtholphthalein CAS: 596-01-0 Purity Grade: Extra Pure Molecular Formula: C28H18O4 Formula Weight: 418.45 MDL Number: MFCD00036202

Sudan III Products for Science Education

Chemical Name or Material: Sudan III CAS: 85-86-9 Assay Percent Range: >99% Molecular Formula: C22H16N4O Linear Formula: C22H16N4O Formula Weight: 352.4 Synonym: 2-Naphthalenol

Fluorescein, Disodium Salt Products for Science Education

Chemical Name or Material: Fluorescein, Disodium Salt CAS: 518-47-8 Assay Percent Range: 100% w/v Linear Formula: C20H10O5Na2 Formula Weight: 412.3 Synonym: Disodium Salt

Universal Indicator Solution, in Isopropanol, ACROS Organics™

Chemical Name or Material: pH Indicator solution, universal (in isopropanol) CAS: 67-63-0 CAS: 67-63-0 CAS: 7732-18-5 Purity Grade: Extra Pure MDL Number: MFCD00148741

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

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

Coumarin 2, Laser Grade 99%, ACROS Organics™

Chemical Name or Material: Coumarin 2 Name Note: 99% CAS: 26078-25-1 Purity Grade: Extra Pure Assay Percent Range: 99% Molecular Formula: C13H15NO2 Formula Weight: 217.27 MDL Number: MFCD00006860 Synonym: 4, 6-Dimethyl-7-ethylaminocoumarin

Rhodamine 6G 99%, ACROS Organics™

Chemical Name or Material: Rhodamine 6G Name Note: 99% CAS: 989-38-8 Purity Grade: Pure Assay Percent Range: 99% Molecular Formula: C28H31ClN2O3 Formula Weight: 479.01 MDL Number: MFCD00012665 Synonym: Basic Red 1

Basic Fuchsin, pure, certified, ACROS Organics™

Chemical Name or Material: Basic Fuchsin Name Note: Pure CAS: 632-99-5 Purity Grade: Pure Molecular Formula: C20H19N3·HCl Formula Weight: 337.84 MDL Number: MFCD00012569 Synonym: Basic Violet 14, hydrochloride

Phenolphthalein Disodium Salt 95%, ACROS Organics™

Chemical Name or Material: Phenolphthalein disodium salt Name Note: 95% CAS: 518-51-4 Purity Grade: Extra Pure Assay Percent Range: 95% Molecular Formula: C20H12Na2O4 Formula Weight: 362.28 MDL Number: MFCD00051414

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

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

Sudan I, ACROS Organics™

Chemical Name or Material: Sudan I CAS: 842-07-9 Purity Grade: Extra Pure Molecular Formula: C16H12N2O Formula Weight: 248.28 MDL Number: MFCD00003911 Synonym: 1-Phenylazo-2-naphthol

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

Carmine, Pure, Certified (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 MDL Number: MFCD00167031 Synonym: C.I. 75470

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

Dansyl Chloride 98%, ACROS Organics™

Chemical Name or Material: Dansyl chloride Name Note: 98% CAS: 605-65-2 Assay: ≥97.5% (HPLC) Assay Percent Range: 98% Molecular Formula: C12H12ClNO2S Formula Weight: 269.75 MDL Number: MFCD00003985 Synonym: 5-Dimethylamino-1-naphthalenesulfonyl chloride

Phenolphthalein Stock Solution, Fisher Chemical

Chemical Name or Material: Phenolphthalein Stock Solution CAS: 7732-18-5 CAS Min %: 52.0 CAS Max %: 55.0 CAS: 64-17-5 CAS Min %: 43.0 CAS Max %: 44.0 CAS: 67-56-1 CAS Min %: 2.0 CAS Max %: 3.0 CAS: 67-63-0 CAS Min %: 2.0 CAS Max %: 3.0 CAS: 77-09-8 CAS Min %: 0.01 CAS Max %: 0.01

May-Gruenwald Stain, pure, ACROS Organics™ Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: May-Gruenwald Stain, pure Purity Grade: Extra Pure MDL Number: MFCD00131580

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

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

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