Terteriary Colors Stains Dyes and Indicators

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

Thionin acetate

Chemical Name or Material: Thionin CAS: 78338-22-4 Molecular Formula: C14H13N3O2S Formula Weight: 287.34 MDL Number: MFCD00081194

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

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

Litmus, pure, indicator grade, ACROS Organics™

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

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

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

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

Sequencing Gel Loading Dye, 3x, ACROS Organics™

Chemical Name or Material: Sequencing gel loading dye CAS: 75-12-7

Fluorescein, ACROS Organics™

Chemical Name or Material: Fluorescein CAS: 2321-07-5 Purity Grade: Pure Molecular Formula: C20H12O5 Formula Weight: 332.3 MDL Number: MFCD00005050

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

Rhodamine B Staining Solution Products for Science Education

Chemical Name or Material: Rhodamine B Staining Solution, 1% CAS: 81-88-9 CAS: 7732-18-5 Assay Percent Range: 1% w/v Synonym: Basic Violet 10

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

2,6-Dichloroindophenol, Sodium Salt Hydrate, ACROS Organics™ Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: 2, 6-Dichloroindophenol, sodium salt hydrate Assay: ≥98.0% (on dry substance) (Total base) Assay Percent Range: 98+% Molecular Formula: C12H6Cl2NNaO2·xH2O Formula Weight: 290.07 Synonym: Tillman's reagent hydrate

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

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

Giemsa Stain, High Purity Biological Stain, ACROS Organics™

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

2,6-Dichloroindophenol Sodium Salt Products for Science Education

Chemical Name or Material: 2, 6-Dichloroindophenol Sodium Salt CAS: 620-45-1 Linear Formula: NaOC6H4N·C6H2(Cl2)·O Formula Weight: 290.08 Synonym: 2, 6-Dichlorophenol Indophenol Sodium Salt

Chromoxane Cyanine R, pure, ACROS Organics™

Chemical Name or Material: Chromoxane Cyanine R CAS: 3564-18-9 Purity Grade: Extra Pure Molecular Formula: C23H15Na3O9S Formula Weight: 536.39 MDL Number: MFCD00012411 Synonym: C.I. 43820

Ninhydrin, Reagent ACS, ACROS Organics™

Chemical Name or Material: Ninhydrin CAS: 485-47-2 Purity Grade: ACS Reagent Grade Molecular Formula: C9H6O4 Formula Weight: 178.14 MDL Number: MFCD00003791 Synonym: 1, 2, 3-Indantrione

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

Nigrosine, pure, water soluble, certified, ACROS Organics™ Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: Nigrosine CAS: 2229872 Purity Grade: Pure Synonym: Acid Black 2

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

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

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

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

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

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

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

  spinner