Terteriary Colors Stains and Dyes and Indicators

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

Sucrose gel loading dye, 5x, ACROS Organics™

Chemical Name or Material: Sucrose gel loading dye CAS: 57-50-1

Tropaeolin O, pure, ACROS Organics™

Chemical Name or Material: Tropaeolin O CAS: 547-57-9 Purity Grade: Extra Pure Molecular Formula: C12H9N2NaO5S Formula Weight: 316.26 MDL Number: MFCD00007499 Synonym: 4-(2, 4-Dihydroxyphenylazo)benzenesulfonic acid, sodium salt

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

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

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

Protein Gel Loading Dye, 2x, ACROS Organics™

Chemical Name or Material: Protein gel loading dye

Xylene Cyanole FF, ACROS Organics™

Chemical Name or Material: Xylene Cyanole FF CAS: 2650-17-1 Molecular Formula: C25H27N2NaO6S2 Formula Weight: 538.61 MDL Number: MFCD00040657

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

Rhodamine 6G, pure, ACROS Organics™

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

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

Nigrosin, water soluble

Chemical Name or Material: Nigrosin CAS: 8005-03-6 Name Note: water soluble MDL Number: MFCD00044681

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

Basic Fuchsin, 88%, pure, ACROS Organics™

Chemical Name or Material: Basic Fuchsin Name Note: 88% CAS: 632-99-5 CAS Min %: 83.0 CAS Max %: 100.0 Purity Grade: Pure Assay Percent Range: 88% Molecular Formula: C20H19N3·HCl Formula Weight: 337.84 MDL Number: MFCD00012569 Synonym: Basic Violet 14, hydrochloride

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

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

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

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

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

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

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

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

Rhodamine 6G, 99%, pure, laser grade, ACROS Organics™ Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: Rhodamine 6G CAS: 989-38-8 Purity Grade: Laser Grade Assay Percent Range: 99% Molecular Formula: C28H31ClN2O3 Formula Weight: 479.02 MDL Number: MFCD00012665 Synonym: Basic Red 1

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

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

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

Coumarin 343, Laser Grade, ACROS Organics™ Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: Coumarin 343 CAS: 55804-65-4 Purity Grade: Pure Molecular Formula: C16H15NO4 Formula Weight: 285.29 MDL Number: MFCD00051335

Azomethine-H hydrate, Alfa Aesar

Chemical Name or Material: Azomethine-H Name Note: hydrate CAS: 32266-60-7 Physical Form: Crystalline Molecular Formula: C17H13NO8S2·XH<cms Formula Weight: 423.40 (Anhydrous)

4-Phenylazophenol, 97%, ACROS Organics™ Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: 4-Phenylazophenol CAS: 1689-82-3 CAS Min %: 96.0 CAS Max %: 100.0 Assay: ≥96.0% Assay Percent Range: 97% Molecular Formula: C12H10N2O Formula Weight: 198.22 MDL Number: MFCD00002330 Synonym: 4-Hydroxyazobenzene

Orcein Biological Stain Products for Science Education

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

  spinner