Terteriary Colors Stains Dyes and Indicators

Giemsa Stain, High Purity Biological Stain, ACROS Organics™

Chemical Name or Material: Giemsa Stain CAS: 51811-82-6 Purity Grade: Pure MDL Number: MFCD00081642

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 Available on GSA/VA Contract for Federal Government customers only.

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

o-Cresolphthalein Complexone, pure, ACROS Organics™ Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: o-Cresolphthalein Complexone Name Note: Pure CAS: 2411-89-4 Purity Grade: Pure Molecular Formula: C32H32N2O12 Formula Weight: 636.6 MDL Number: MFCD00005911 Synonym: Phthalein Complexon

orcein, ACROS Organics™

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

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

Protein Gel Loading Dye, 2x, ACROS Organics™

Chemical Name or Material: Protein gel loading dye

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

Ninhydrin, ozone friendly ready to use spray for TLC, ACROS Organics™

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

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

Carmine (Certified Biological Stain), Fisher Chemical

Chemical Name or Material: Carmine CAS: 1390-65-4 Purity Grade: Certified Biological Stain Molecular Formula: C9H6F2O2 MDL Number: MFCD00167027 Synonym: Alum Lake

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

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

Phenolphthalein Solution, Alcoholic 0.5%, Fisher Chemical

Chemical Name or Material: Phenolphthalein Solution, Alcoholic 0.5% CAS: 67-63-0 CAS: 77-09-8 CAS: 7732-18-5 Assay Percent Range: 0.5% MDL Number: MFCD00005913

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

Universal pH Indicator Solution, ACROS Organics™

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

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

Fluorescein Isothiocyanate Isomer I, 90%, Pure, ACROS Organics™

Chemical Name or Material: Fluorescein isothiocyanate isomer I CAS: 3326-32-7 Purity Grade: Pure Assay: ≥88% (HPLC) Assay Percent Range: 90% Molecular Formula: C21H11NO5S Formula Weight: 389.38 MDL Number: MFCD00005063 Synonym: 5-FITC

Pyronin Y, pure, high purity biological stain, ACROS Organics™ Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: Pyronin Y Name Note: Pure CAS: 92-32-0 Purity Grade: Pure Molecular Formula: C17H19ClN2O Formula Weight: 302.79 MDL Number: MFCD00011725 Synonym: C.I. 45005

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

Coumarin 314, 99%, pure, laser grade, ACROS Organics™ Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: Coumarin 314 CAS: 55804-66-5 Purity Grade: Laser Grade Assay Percent Range: 99% Molecular Formula: C18H19NO4 Formula Weight: 313.35 MDL Number: MFCD00051334 Synonym: 1,2,4,5,3H,6H,10H-Tetrahydro-9-carbethoxy[1]benzopyrano(9,9a,1-gh)-quinolizin-10-one

Litmus, pure, indicator grade, ACROS Organics™

Chemical Name or Material: Litmus CAS: 1393-92-6 Purity Grade: Pure MDL Number: MFCD00131528

Sudan III, 0.2% in Alcohol Solution Products for Science Education

Chemical Name or Material: Sudan III, 0.2% in Alcohol Solution CAS: 67-63-0 CAS: 85-86-9 Assay Percent Range: 99.8% w/v

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

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

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

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

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

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

Thionin Products for Science Education

Chemical Name or Material: Thionin CAS: 581-64-6 Assay Percent Range: >85% w/v Formula Weight: 263.74 Synonym: 3, 7-Diaminophenothiazin-5-ium Chloride

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