Red Stains Dyes and Indicators

Nile Red 99%, ACROS Organics™

Chemical Name or Material: Nile Red Name Note: 99% CAS: 7385-67-3 CAS Min %: 98.5 CAS Max %: 100.0 Purity Grade: Extra Pure Assay Percent Range: 99% Molecular Formula: C20H18N2O2 Formula Weight: 318.38 MDL Number: MFCD00011639 Synonym: Nile blue A oxazone

Erythrosin B

Chemical Name or Material: Erythrosin B CAS: 568-63-8 Molecular Formula: C20H6I4Na2O5 Formula Weight: 879.87 MDL Number: MFCD00144257

Bromophenol Red, pure, ACROS Organics™

Chemical Name or Material: Bromophenol Red CAS: 2800-80-8 Purity Grade: Pure Molecular Formula: C19H12Br2O5S Formula Weight: 512.19 MDL Number: MFCD00023014 Synonym: 5', 5''-Dibromophenolsulfonphthalein

Methyl Red, ACS, Alfa Aesar™

Chemical Name or Material: Methyl Red Name Note: For analysis ACS CAS: 493-52-7 Purity Grade: ACS Grade Physical Form: Crystalline Molecular Formula: C15H15N3O2 Formula Weight: 269.3 MDL Number: MFCD00002425 Synonym: C.I. 13020

Direct Red 80

Chemical Name or Material: Direct Red 80 CAS: 2610-10-8 Molecular Formula: C45H32N10O21S6 Formula Weight: 1373.09 MDL Number: MFCD00054389

Alizarin Red S sodium salt, 1% w/v aq. sol., Alfa Aesar™

Chemical Name or Material: Alizarin Red S sodium salt CAS: 130-22-3 Physical Form: Liquid Molecular Formula: C14H7O7SNa MDL Number: MFCD00013049

Sudan Red 7B, ACROS Organics™ Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: Sudan red 7B CAS: 6368-72-5 Molecular Formula: C24H21N5 Formula Weight: 379.45 MDL Number: MFCD00003904 Synonym: C.I. 26050

Alizarin Red S, pure, certified, ACROS Organics™

Chemical Name or Material: Alizarin Red S CAS: 130-22-3 Purity Grade: Pure Molecular Formula: C14H7NaO7S Formula Weight: 342.26 MDL Number: MFCD00013049 Synonym: 9, 10-Dihydro-3, 4-dihydroxy-9

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

Chemical Name or Material: Eosin B CAS: 548-24-3 Purity Grade: Pure Molecular Formula: C20H6Br2N2Na2O9 Formula Weight: 624.06 MDL Number: MFCD00005041 Synonym: 4', 5'-Dibromo-2', 7'-dinitrofluorescein

Phenol Red, Water Soluble, Indicator, ACROS Organics™

Chemical Name or Material: Phenol Red, sodium salt CAS: 34487-61-1 Purity Grade: Pure Molecular Formula: C19H13NaO5S Formula Weight: 376.35

Neutral Red, pure, high purity biological stain, ACROS Organics™

Chemical Name or Material: Neutral red Name Note: High purity biological stain CAS: 553-24-2 Purity Grade: Extra Pure Molecular Formula: C15H17ClN4 Formula Weight: 288.77 MDL Number: MFCD00012651 Synonym: 3-Amino-7-dimethylamino-2-methylphenazine hydrochloride

Phenol Red, ACROS Organics™

Chemical Name or Material: Phenol Red Name Note: Pure CAS: 143-74-8 Purity Grade: ACS Reagent Grade Molecular Formula: C19H14O5S Formula Weight: 354.38 MDL Number: MFCD00003552 Synonym: Phenolsulfonephthalein

Eosin Y, pure, high purity, biological stain, ACROS Organics™

Chemical Name or Material: Eosin Y Name Note: High purity biological stain CAS: 17372-87-1 Purity Grade: Pure Molecular Formula: C20H6Br4Na2O5 Formula Weight: 691.85 MDL Number: MFCD00005040 Synonym: 2', 4', 5'

Thymolphthalein, 0.05% w/v solution in ethanol, Alfa Aesar™

Chemical Name or Material: Thymolphthalein Name Note: 0.05% w/v solution in ethanol CAS: 125-20-2 Physical Form: Liquid Molecular Formula: C28H30O4 Formula Weight: 430.55 MDL Number: MFCD00005909

Phenol Red, Sodium Salt (Certified ACS), Fisher Chemical

Chemical Name or Material: Phenol Red, Sodium Salt CAS: 34487-61-1 Purity Grade: Certified ACS Grade Molecular Formula: C19H13NaO5S Linear Formula: C6H4SO2OC(C6H4-4-OH)(C6H4-4-ONa) Formula Weight: 376.37 MDL Number: MFCD00066901 Synonym: Phenolsulfonephthalein Sodium Salt

Congo Red, Indicator grade, ACROS Organics™

Chemical Name or Material: Congo Red CAS: 573-58-0 Purity Grade: Indicator Grade Molecular Formula: C32H22N6Na2O6S2 Formula Weight: 696.66 MDL Number: MFCD00004028 Synonym: C.I. 22120

Phenol Red, Free Acid (Certified ACS), Fisher Chemical

Chemical Name or Material: Phenol Red, Free Acid CAS: 143-74-8 Purity Grade: Certified ACS Grade Molecular Formula: C19H14O5S Linear Formula: C6H4SO2OC(C6H4-4-OH)2 Formula Weight: 354.39 MDL Number: MFCD00003552 Synonym: 4, 4'-(3H-2, 1-Benzoxathiol-3-yildene)bisphenol S

Cresol Red sodium salt

Chemical Name or Material: Cresol Red sodium salt CAS: 62625-29-0 Molecular Formula: C21H17NaO5S Formula Weight: 404.42 MDL Number: MFCD00001618

Chlorophenol Red, Water Soluble, ACROS Organics™

Chemical Name or Material: Chlorophenol Red, sodium salt CAS: 123333-64-2 Purity Grade: Pure Molecular Formula: C19H11Cl2NaO5S Formula Weight: 445.25 Synonym: 3', 3''-Dichlorophenolsulfonephthalein, sodium salt

Methyl Red, ACS reagent, ACROS Organics™

Chemical Name or Material: Methyl Red Name Note: Pure CAS: 493-52-7 Purity Grade: ACS Reagent Grade Molecular Formula: C15H15N3O2 Linear Formula: (CH3)2NC6H4N=NC6H4CO2H Formula Weight: 269.3 MDL Number: MFCD00002425 Synonym: 2-[4-(Dimethylamino)phenylazo]benzoic acid

Eosin B, Certified, Pure, ACROS Organics™ Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: Eosin B Name Note: Pure CAS: 548-24-3 Purity Grade: Pure Molecular Formula: C20H6Br2N2Na2O9 Formula Weight: 624.06 MDL Number: MFCD00005041 Synonym: 4', 5'-Dibromo-2', 7'-dinitrofluorescein

Methyl Red sodium salt, 0.02% w/v Aqueous Solution, Alfa Aesar™

Chemical Name or Material: Methyl Red sodium salt CAS: 845-10-3 Physical Form: Liquid Assay Percent Range: 0.02% w/v Molecular Formula: (CH3)2NC6H4N=NC6H4CO2Na Formula Weight: 291.29 MDL Number: MFCD00002426

Ruthenium Red tetrahydrate, pure, ACROS Organics™ Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: Ruthenium red tetrahydrate Name Note: Pure CAS: 12790-48-6 Purity Grade: Extra Pure Assay: 34.6 to 36.1% (ruthenium) Molecular Formula: Cl6H42N14O2Ru3·4H2O Linear Formula: {(NH3)5Ruoru(NH3)4oru(NH3)5}Cl6·4H2O Formula Weight: 858.35 MDL Number: MFCD00167176

Eosin Y, 0.25% Alcoholic, Fisher Chemical

Chemical Name or Material: Eosin Y, Alcoholic Name Note: 0.25% Solution CAS: 64-17-5 CAS: 67-63-0 CAS: 67-56-1 CAS: 17372-87-1 CAS: 7732-18-5 MDL Number: MFCD00036189 Synonym: Acid Red 87

Methyl Red Indicator Solution, 0.02% Products for Science Education

Chemical Name or Material: Methyl Red Indicator Solution, 0.02% CAS: 845-10-3 Linear Formula: C15H14N3O2Na Formula Weight: 291.28 Synonym: Methyl Red In Alcohol

Methyl Red Indicator Products for Science Education

Chemical Name or Material: Methyl Red Indicator CAS: 845-10-3 Linear Formula: C15H14N3O2Na Formula Weight: 291.28 Synonym: Methyl Red In Alcohol

Chlorophenol Red, pure, indicator grade, ACROS Organics™

Chemical Name or Material: Chlorophenol Red Name Note: Pure CAS: 4430-20-0 Purity Grade: Pure Molecular Formula: C19H12Cl2O5S Formula Weight: 423.26 MDL Number: MFCD00005877 Synonym: 3', 3''-Dichlorophenylsulfonphthalein

Fast Garnet GBC Base 97%, ACROS Organics™

Chemical Name or Material: Fast Garnet GBC base Name Note: 97% CAS: 97-56-3 Assay: ≥96.0% Assay Percent Range: 97% Molecular Formula: C14H15N3 Linear Formula: NH2C6H3(CH3)N=NC6H4CH3 Formula Weight: 225.29 MDL Number: MFCD00007733 Synonym: 2-Aminoazotoluene

Methyl Red, Free Acid (Certified), Fisher Chemical

Chemical Name or Material: Methyl Red, Free Acid CAS: 493-52-7 Purity Grade: Certified Grade Molecular Formula: C15H15N3O2 Linear Formula: 4-(CH3)2N-C6H4-N:N-2-(CO2H)C6H4 Formula Weight: 269.3 MDL Number: MFCD00002425 Synonym: Acid Red 2

Cresol Red, Water Soluble, Indicator Grade, ACROS Organics™

Chemical Name or Material: Cresol Red, sodium salt CAS: 62625-29-0 Purity Grade: Pure Molecular Formula: C21H17NaO5S Formula Weight: 404.4 MDL Number: MFCD00001618

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