Terteriary Colors Stains Dyes and Indicators

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

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

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

Methyl Viologen hydrate, 98%, ACROS Organics™

Chemical Name or Material: Methyl Viologen hydrate Name Note: 98% CAS: 1910-42-5 Assay: ≥97.5% (on dry substance) Assay Percent Range: 98% Molecular Formula: C12H14Cl2N2·xH2O Formula Weight: 257.15 MDL Number: MFCD00150001 Synonym: Paraquat, dichloride

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

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

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

Ponceau S, pure, ACROS Organics™

Chemical Name or Material: Ponceau S CAS: 6226-79-5 Purity Grade: Pure Molecular Formula: C22H12N4Na4O13S4 Formula Weight: 760.54 MDL Number: MFCD00003892 Synonym: 3-Hydroxy-4-[2-sulfo-4-(4-sulfophenylazo)phenylazo]-2, 7-naphthalenedisulfonic acid, tetrasodium salt

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

NBD chloride, 98%, ACROS Organics™

Chemical Name or Material: NBD chloride CAS: 10199-89-0 CAS Min %: 97.5 CAS Max %: 100.0 Assay: ≥97.5% Assay Percent Range: 98% Molecular Formula: C6H2ClN3O3 Formula Weight: 199.55 MDL Number: MFCD00005808 Synonym: 4-Chloro-7-nitrobenzo-2-oxa-1, 3-diazole

2',7'-Dichlorofluorescein 3',6'-diacetate, 97%, ACROS Organics™

Chemical Name or Material: 2', 7'-Dichlorofluorescein 3', 6'-diacetate CAS: 2044-85-1 CAS Min %: 96.0 CAS Max %: 100.0 Assay: ≥96.0% Assay Percent Range: 97% Molecular Formula: C24H14Cl2O7 Formula Weight: 485.27 MDL Number: MFCD00037501

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

orcein, ACROS Organics™

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

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

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

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

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

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

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

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

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

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

Phenol Crystals Products for Science Education

Chemical Name or Material: Phenol CAS: 108-95-2 Assay Percent Range: 99% Linear Formula: C6H5OH Formula Weight: 94.11 Synonym: Carbolic Acid

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

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

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

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

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

2,6-Dichloroindophenol, Sodium Salt Hydrate, ACROS Organics™

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

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

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)

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