Terteriary Colors Stains and Dyes and Indicators

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

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

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

Chemical Name or Material: Acid Fuchsin Name Note: Pure CAS: 3244-88-0 Purity Grade: Pure Molecular Formula: C20H17N3Na2O9S3 Formula Weight: 585.52 MDL Number: MFCD00013286 Synonym: Acid Violet 19

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

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

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

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

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

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

Chemical Name or Material: Tiron™ CAS: 149-45-1 Molecular Formula: C6H4Na2O8S2·H2O Linear Formula: (HO)2C6H2(SO3Na)2·H2O Formula Weight: 332.21 MDL Number: MFCD00149531 Synonym: 4,5-Dihydroxy-1,3-benzenedisulfonic acid, disodium salt monohydrate

Wright Stain, pure, certified, ACROS Organics™

Chemical Name or Material: Wright Stain Name Note: Pure CAS: 68988-92-1 Purity Grade: Pure MDL Number: MFCD00082143

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

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

Coumarin 6, Laser Grade 98%, ACROS Organics™ Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: Coumarin 6 Name Note: 98% CAS: 38215-36-0 Purity Grade: Extra Pure Assay Percent Range: 98% Molecular Formula: C20H18N2O2S Formula Weight: 350.44 MDL Number: MFCD00041869 Synonym: 3-(2'-Benzothiazolyl)-7-diethylaminocoumarin

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

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

Rhodamine 101 Inner Salt 99%, ACROS Organics™ Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: Rhodamine 101 inner salt Name Note: 99% CAS: 116450-56-7 Purity Grade: Pure Assay: ≥98.5% Assay Percent Range: 99% Molecular Formula: C32H30N2O3 Formula Weight: 490.59 MDL Number: MFCD00051383

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

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

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

Rhodamine B, ≥98%, pure, ACROS Organics™

Chemical Name or Material: Rhodamine B Name Note: Pure CAS: 81-88-9 Purity Grade: Pure Assay: ≥98% Assay Percent Range: ≥98% Molecular Formula: C28H31ClN2O3 Formula Weight: 479.01 MDL Number: MFCD00011931 Synonym: Basic Violet 10

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

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

New Coccine, pure, ACROS Organics™

Chemical Name or Material: New Coccine CAS: 2611-82-7 Purity Grade: Extra Pure Molecular Formula: C20H11N2Na3O10S3 Formula Weight: 604.46 MDL Number: MFCD00004084 Synonym: Acid Red 18

Universal pH Indicator Solution, ACROS Organics™

Chemical Name or Material: pH Indicator solution, universal CAS: 67-63-0 MDL Number: MFCD00148741

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

Calmagite, Indicator Grade, Pure, ACROS Organics™

Chemical Name or Material: Calmagite CAS: 3147-14-6 Purity Grade: Extra Pure Molecular Formula: C17H14N2O5S Formula Weight: 358.38 MDL Number: MFCD00011656 Synonym: 3-Hydroxy-4-(2-hydroxy-5-methylphenylazo)-1-naphthalenesulfonic acid

Resazurin Products for Science Education

Chemical Name or Material: Resazurin CAS: 62758-13-8 Assay Percent Range: >99% w/v Linear Formula: C12H6NO4Na Formula Weight: 251.17 Synonym: 7-Hydroxy-3H-phenoxazin-3-one 10-oxide, sodium salt

Schiff Reagent Products for Science Education

Chemical Name or Material: Schiff Reagent CAS: 64365-11-3 CAS: 7440-44-0 CAS: 7647-01-0 CAS: 7681-57-4 CAS: 7732-18-5 Physical Form: Liquid Assay Percent Range: <1% w/v Synonym: Test for aldehydes

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

Tetrabromophenolphthalein Ethyl Ester, Potassium Salt, Indicator Grade, ACROS Organics™

Chemical Name or Material: Tetrabromophenolphthalein ethyl ester, potassium salt CAS: 62637-91-6 Purity Grade: Extra Pure Molecular Formula: C22H13Br4KO4 Formula Weight: 700.05 MDL Number: MFCD00011662

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