Red Stains and Dyes and Indicators

Methyl Red, Free Acid (Certified), Fisher Chemical

CAS: 493-52-7 Molecular Formula: C15H15N3O2 Molecular Weight (g/mol): 269.304 MDL Number: MFCD00002425 InChI Key: CEQFOVLGLXCDCX-UHFFFAOYSA-N Synonym: Acid Red 2, o-(p-Dimethylaminophenylazo)benzoic Acid PubChem CID: 10303 IUPAC Name: 2-[[4-(dimethylamino)phenyl]diazenyl]benzoic acid SMILES: CN(C)C1=CC=C(C=C1)N=NC2=CC=CC=C2C(=O)O

Fuchsin Basic (Certified Biological Stain), Fisher Chemical

CAS: 632-99-5 Molecular Formula: C20H20ClN3 Molecular Weight (g/mol): 337.851 MDL Number: MFCD00001657 InChI Key: AXDJCCTWPBKUKL-UHFFFAOYSA-N Synonym: Magenta, Pararosaniline PubChem CID: 12447 IUPAC Name: 4-[(4-aminophenyl)-(4-imino-3-methylcyclohexa-2,5-dien-1-ylidene)methyl]aniline;hydrochloride SMILES: CC1=CC(=C(C2=CC=C(C=C2)N)C3=CC=C(C=C3)N)C=CC1=N.Cl

Congo Red (Certified Biological Stain), Fisher Chemical

CAS: 573-58-0 Molecular Formula: C32H22N6Na2O6S2 Molecular Weight (g/mol): 696.664 InChI Key: IQFVPQOLBLOTPF-UHFFFAOYSA-L Synonym: Diphenyl Bisazonaphthionic Acid, Direct Red 28 PubChem CID: 11313 ChEBI: CHEBI:34653 IUPAC Name: disodium;4-amino-3-[[4-[4-[(1-amino-4-sulfonatonaphthalen-2-yl)diazenyl]phenyl]phenyl]diazenyl]naphthalene-1-sulfonate SMILES: C1=CC=C2C(=C1)C(=CC(=C2N)N=NC3=CC=C(C=C3)C4=CC=C(C=C4)N=NC5=C(C6=CC=CC=C6C(=C5)S(=O)(=O)[O-])N)S(=O)(=O)[O-].[Na+].[Na+]

Neutral Red (Certified Biological Stain), Fisher Chemical

CAS: 553-24-2 Molecular Formula: C15H17ClN4 Molecular Weight (g/mol): 288.779 MDL Number: MFCD00012651 InChI Key: PGSADBUBUOPOJS-UHFFFAOYSA-N Synonym: Basic Red 5, Toluylene Red PubChem CID: 11105 ChEBI: CHEBI:86370 IUPAC Name: 8-N,8-N,3-trimethylphenazine-2,8-diamine;hydrochloride SMILES: CC1=CC2=NC3=C(C=C(C=C3)N(C)C)N=C2C=C1N.Cl

Methyl Red Indicator, 0.1% (w/v) Alcoholic Solution, Ricca Chemical

CAS: 845-10-3 Molecular Formula: C15H14N3NaO2 Molecular Weight (g/mol): 291.286 InChI Key: GNTPCYMJCJNRQB-UHFFFAOYSA-M PubChem CID: 4465632 IUPAC Name: sodium;2-[[4-(dimethylamino)phenyl]diazenyl]benzoate SMILES: CN(C)C1=CC=C(C=C1)N=NC2=CC=CC=C2C(=O)[O-].[Na+]

Eosin Y (Certified Biological Stain), Fisher Chemical™

CAS: 17372-87-1 Molecular Formula: C20H12Br4Na2O8 Molecular Weight (g/mol): 745.904 MDL Number: MFCD00005040 InChI Key: MASXMTNVNASWNH-UHFFFAOYSA-L Synonym: Acid Red 87, FD&C Red No. 22 PubChem CID: 91886399 IUPAC Name: disodium;2-(2,4,5,7-tetrabromo-3-oxido-6-oxoxanthen-9-yl)benzoate;trihydrate SMILES: C1=CC=C(C(=C1)C2=C3C=C(C(=O)C(=C3OC4=C(C(=C(C=C24)Br)[O-])Br)Br)Br)C(=O)[O-].O.O.O.[Na+].[Na+]

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

CAS: 34487-61-1 Molecular Formula: C19H13NaO5S Molecular Weight (g/mol): 376.358 MDL Number: MFCD00066901 InChI Key: HKHYOKBQJILTEI-UHFFFAOYSA-M Synonym: Phenolsulfonephthalein Sodium Salt PubChem CID: 23686673 IUPAC Name: sodium;4-[3-(4-hydroxyphenyl)-1,1-dioxo-2,1$l^{6}-benzoxathiol-3-yl]phenolate SMILES: C1=CC=C2C(=C1)C(OS2(=O)=O)(C3=CC=C(C=C3)O)C4=CC=C(C=C4)[O-].[Na+]

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

CAS: 143-74-8 Molecular Formula: C19H14O5S Molecular Weight (g/mol): 354.376 MDL Number: MFCD00003552 InChI Key: BELBBZDIHDAJOR-UHFFFAOYSA-N Synonym: 4, 4'-(3H-2, 1-Benzoxathiol-3-yildene)bisphenol S, 4,4'-(3H-2,1-Benzoxathiol-3-yildene)bisphenol S,S-Dioxide PubChem CID: 4766 ChEBI: CHEBI:31991 IUPAC Name: 4-[3-(4-hydroxyphenyl)-1,1-dioxo-2,1$l^{6}-benzoxathiol-3-yl]phenol SMILES: C1=CC=C2C(=C1)C(OS2(=O)=O)(C3=CC=C(C=C3)O)C4=CC=C(C=C4)O

Eosin Y TS, 0.5% (w/v) Aqueous Solution, Adsorption Indicator for Argentometric Titrations, Ricca Chemical

CAS: 17372-87-1 Molecular Formula: C20H12Br4Na2O8 Molecular Weight (g/mol): 745.904 InChI Key: MASXMTNVNASWNH-UHFFFAOYSA-L PubChem CID: 91886399 IUPAC Name: disodium;2-(2,4,5,7-tetrabromo-3-oxido-6-oxoxanthen-9-yl)benzoate;trihydrate SMILES: C1=CC=C(C(=C1)C2=C3C=C(C(=O)C(=C3OC4=C(C(=C(C=C24)Br)[O-])Br)Br)Br)C(=O)[O-].O.O.O.[Na+].[Na+]

Erythrosin B, Alfa Aesar™

CAS: 16423-68-0 Molecular Formula: C40H14I8Na2O10 Molecular Weight (g/mol): 1715.757 MDL Number: MFCD00144257 InChI Key: DKRYETBOLGDIOK-UHFFFAOYSA-L PubChem CID: 131676154 IUPAC Name: disodium;2-(3-hydroxy-2,4,5,7-tetraiodo-6-oxoxanthen-9-yl)benzoic acid;2-(2,4,5,7-tetraiodo-3-oxido-6-oxoxanthen-9-yl)benzoate SMILES: C1=CC=C(C(=C1)C2=C3C=C(C(=O)C(=C3OC4=C(C(=C(C=C24)I)O)I)I)I)C(=O)O.C1=CC=C(C(=C1)C2=C3C=C(C(=O)C(=C3OC4=C(C(=C(C=C24)I)[O-])I)I)I)C(=O)[O-].[Na+].[Na+]

Eosin Y (1% Solution in Water), Fisher Chemical

CAS: 17372-87-1 Molecular Formula: C20H12Br4Na2O8 Molecular Weight (g/mol): 745.904 MDL Number: MFCD00005040 InChI Key: MASXMTNVNASWNH-UHFFFAOYSA-L PubChem CID: 91886399 IUPAC Name: disodium;2-(2,4,5,7-tetrabromo-3-oxido-6-oxoxanthen-9-yl)benzoate;trihydrate SMILES: C1=CC=C(C(=C1)C2=C3C=C(C(=O)C(=C3OC4=C(C(=C(C=C24)Br)[O-])Br)Br)Br)C(=O)[O-].O.O.O.[Na+].[Na+]

Direct Red 80, Alfa Aesar™

CAS: 2610-10-8 Molecular Formula: C45H26N10Na6O21S6 Molecular Weight (g/mol): 1373.05 MDL Number: MFCD00054389 InChI Key: LDCKXVAPQFUIOI-ZFLDVXHKSA-H PubChem CID: 57369623 IUPAC Name: hexasodium;4-oxo-7-[[5-oxo-7-sulfonato-6-[[2-sulfonato-4-[(4-sulfonatophenyl)diazenyl]phenyl]hydrazinylidene]naphthalen-2-yl]carbamoylamino]-3-[[2-sulfonato-4-[(4-sulfonatophenyl)diazenyl]phenyl]hydrazinylidene]naphthalene-2-sulfonate SMILES: C1=CC(=CC=C1N=NC2=CC(=C(C=C2)NN=C3C(=CC4=C(C3=O)C=CC(=C4)NC(=O)NC5=CC6=C(C=C5)C(=O)C(=NNC7=C(C=C(C=C7)N=NC8=CC=C(C=C8)S(=O)(=O)[O-])S(=O)(=O)[O-])C(=C6)S(=O)(=O)[O-])S(=O)(=O)[O-])S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+]

Methyl Red, pure, indicator, ACROS Organics™

CAS: 493-52-7 Molecular Formula: C15H15N3O2 Molecular Weight (g/mol): 269.304 InChI Key: CEQFOVLGLXCDCX-UHFFFAOYSA-N Synonym: 2-[4-(Dimethylamino)phenylazo]benzoic acid, Acid Red 2, C.I. 13020 PubChem CID: 10303 IUPAC Name: 2-[[4-(dimethylamino)phenyl]diazenyl]benzoic acid SMILES: CN(C)C1=CC=C(C=C1)N=NC2=CC=CC=C2C(=O)O

Neutral Red, ACROS Organics™

CAS: 553-24-2 Molecular Formula: C15H17ClN4 Molecular Weight (g/mol): 288.779 MDL Number: MFCD00012651 InChI Key: PGSADBUBUOPOJS-UHFFFAOYSA-N Synonym: 3-Amino-7-dimethylamino-2-methylphenazine hydrochloride, Basic Red 5, C.I. 50040 PubChem CID: 11105 ChEBI: CHEBI:86370 IUPAC Name: 8-N,8-N,3-trimethylphenazine-2,8-diamine;hydrochloride SMILES: CC1=CC2=NC3=C(C=C(C=C3)N(C)C)N=C2C=C1N.Cl

Alizarin Red S, pure, certified, ACROS Organics™

CAS: 130-22-3 Molecular Formula: C14H7NaO7S Molecular Weight (g/mol): 342.253 MDL Number: MFCD00013049 InChI Key: HFVAFDPGUJEFBQ-UHFFFAOYSA-M Synonym: 9, 10-Dihydro-3, 4-dihydroxy-9, 9,10-Dihydro-3,4-dihydroxy-9,10-dioxo-2-anthracenesulfonic acid, sodium salt, Mordant Red 3, Sodium alizarinesulfonate PubChem CID: 3955344 ChEBI: CHEBI:87358 IUPAC Name: sodium;3,4-dihydroxy-9,10-dioxoanthracene-2-sulfonate SMILES: C1=CC=C2C(=C1)C(=O)C3=CC(=C(C(=C3C2=O)O)O)S(=O)(=O)[O-].[Na+]

Erythrosin B, pure, high purity, biological stain, ACROS Organics™

CAS: 16423-68-0 Molecular Formula: C20H6I4Na2O5 Molecular Weight (g/mol): 879.86 MDL Number: MFCD00144257 InChI Key: RAGZEDHHTPQLAI-UHFFFAOYSA-L Synonym: Acid Red 51, C.I. 45430 PubChem CID: 12961638 IUPAC Name: disodium;2',4',5',7'-tetraiodo-3-oxospiro[2-benzofuran-1,9'-xanthene]-3',6'-diolate SMILES: C1=CC=C2C(=C1)C(=O)OC23C4=CC(=C(C(=C4OC5=C(C(=C(C=C35)I)[O-])I)I)[O-])I.[Na+].[Na+]

Methyl Red, sodium salt, indicator, pure, ACROS Organics™

CAS: 845-10-3 Molecular Formula: C15H14N3NaO2 Molecular Weight (g/mol): 291.286 MDL Number: MFCD00002426 InChI Key: GNTPCYMJCJNRQB-UHFFFAOYSA-M Synonym: 2-[4-(Dimethylamino)phenylazo]benzoic acid, sodium salt, C.I. 13020, MR PubChem CID: 4465632 IUPAC Name: sodium;2-[[4-(dimethylamino)phenyl]diazenyl]benzoate SMILES: CN(C)C1=CC=C(C=C1)N=NC2=CC=CC=C2C(=O)[O-].[Na+]

Fast blue B salt, MP Biomedicals™

CAS: 14263-94-6 Molecular Formula: C14H12Cl4N4O2Zn Molecular Weight (g/mol): 475.46 InChI Key: GPPKNJIWDULNQH-UHFFFAOYSA-J Synonym: AZOIC DIAZO No 48, C.I. 37235 PubChem CID: 66685 ChEBI: CHEBI:87629 IUPAC Name: zinc(2+) 3,3'-dimethoxy-[1,1'-biphenyl]-4,4'-bis(diazonium) tetrachloride SMILES: [Cl-].[Cl-].[Cl-].[Cl-].[Zn++].COC1=CC(=CC=C1[N+]#N)C1=CC=C([N+]#N)C(OC)=C1

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

CAS: 845-10-3 Molecular Formula: C15H14N3NaO2 Molecular Weight (g/mol): 291.286 MDL Number: MFCD00002426 InChI Key: GNTPCYMJCJNRQB-UHFFFAOYSA-M Synonym: Acid Red 2, Sodium Salt PubChem CID: 4465632 IUPAC Name: sodium;2-[[4-(dimethylamino)phenyl]diazenyl]benzoate SMILES: CN(C)C1=CC=C(C=C1)N=NC2=CC=CC=C2C(=O)[O-].[Na+]

Methyl Red hydrochloride, ACS reagent, ACROS Organics™

CAS: 63451-28-5 Molecular Formula: C15H16ClN3O2 Molecular Weight (g/mol): 305.762 MDL Number: MFCD00012614 InChI Key: ICTWKXAVJAHRMK-UHFFFAOYSA-N Synonym: 2-[4-(Dimethylamino)phenylazo]benzoic acid hydrochloride, Acid Red 2, C.I. 13020 PubChem CID: 113227 IUPAC Name: 2-[[4-(dimethylamino)phenyl]diazenyl]benzoic acid;hydrochloride SMILES: CN(C)C1=CC=C(C=C1)N=NC2=CC=CC=C2C(=O)O.Cl

Alfa Aesar™ Oil Red O

CAS: 1320-06-5 Molecular Formula: C26H24N4O Molecular Weight (g/mol): 408.505 MDL Number: MFCD00003898 InChI Key: HJAYEODIXUYVIC-LTFAAIOASA-N Synonym: C.I. 26125; Solvent Red 27 PubChem CID: 6046885 IUPAC Name: (1Z)-1-[[4-[(2,5-dimethylphenyl)diazenyl]-2,5-dimethylphenyl]hydrazinylidene]naphthalen-2-one SMILES: CC1=CC(=C(C=C1)C)N=NC2=C(C=C(C(=C2)C)NN=C3C(=O)C=CC4=CC=CC=C43)C

MilliporeSigma™ SynaptoRed™ Reagent, Calbiochem™,

CAS: 162112-35-8 Molecular Formula: C30H45Br2N3 Molecular Weight (g/mol): 607.519 InChI Key: AFVSZGYRRUMOFH-UHFFFAOYSA-L Synonym: FM4-64, Frie Mao 4-64, N-(3-Triethylammoniumpropyl)-4-(p-diethylaminophenylhexatrienyl)-pyridinium, 2Br PubChem CID: 90489009 IUPAC Name: 3-[4-[(1Z,3E,5Z)-6-[4-(diethylamino)phenyl]hexa-1,3,5-trienyl]pyridin-1-ium-1-yl]propyl-triethylazanium;dibromide SMILES: CCN(CC)C1=CC=C(C=C1)C=CC=CC=CC2=CC=[N+](C=C2)CCC[N+](CC)(CC)CC.[Br-].[Br-]

Erythrosin B, pure, certified, ACROS Organics™

CAS: 16423-68-0 Molecular Formula: C20H6I4Na2O5 Molecular Weight (g/mol): 879.86 MDL Number: MFCD00144257 InChI Key: RAGZEDHHTPQLAI-UHFFFAOYSA-L Synonym: Acid Red 51, C.I. 45430 PubChem CID: 12961638 IUPAC Name: disodium;2',4',5',7'-tetraiodo-3-oxospiro[2-benzofuran-1,9'-xanthene]-3',6'-diolate SMILES: C1=CC=C2C(=C1)C(=O)OC23C4=CC(=C(C(=C4OC5=C(C(=C(C=C35)I)[O-])I)I)[O-])I.[Na+].[Na+]

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

CAS: 553-24-2 Molecular Formula: C15H17ClN4 Molecular Weight (g/mol): 288.779 MDL Number: MFCD00012651 InChI Key: PGSADBUBUOPOJS-UHFFFAOYSA-N Synonym: 3-Amino-7-dimethylamino-2-methylphenazine hydrochloride, Basic Red 5, C.I. 50040 PubChem CID: 11105 ChEBI: CHEBI:86370 IUPAC Name: 8-N,8-N,3-trimethylphenazine-2,8-diamine;hydrochloride SMILES: CC1=CC2=NC3=C(C=C(C=C3)N(C)C)N=C2C=C1N.Cl

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