Terteriary Colors Stains Dyes and Indicators

Litmus Products for Science Education

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

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

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

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

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

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

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

Protein Gel Loading Dye, 2x, ACROS Organics™

Chemical Name or Material: Protein gel loading dye

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

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

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

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 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

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

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

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

Carbol Fuchsin, pure, ACROS Organics™

Chemical Name or Material: Carbol Fuchsin Name Note: A mixture of Basic Fuchsin and phenol. CAS: 4197-24-4 Purity Grade: Pure MDL Number: MFCD00143923

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

Nigrosin Saturated Aqueous Solution Products for Science Education

Chemical Name or Material: Nigrosin Saturated Aqueous Solution CAS: 7697-37-2 CAS: 7732-18-5 Assay Percent Range: 0.03 Synonym: Nigrosine Biological Stain

Hematoxylin Products for Science Education

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

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

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

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

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

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

Ninhydrin Products for Science Education

Chemical Name or Material: Ninhydrin CAS: 485-47-2 Assay Percent Range: >95% Linear Formula: C6H4·1, 2·(CO)2CO·H2O Formula Weight: 178.14 Synonym: 1, 2, 3 -Indantrione Monohydrate

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

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

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

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

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