Red Stains Dyes and Indicators

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+]

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

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+]

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 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 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, 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 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

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 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

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 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+]

Phenol Red, Indicator, ACROS Organics™

CAS: 143-74-8 Molecular Formula: C19H14O5S Molecular Weight (g/mol): 354.376 MDL Number: MFCD00003552 InChI Key: BELBBZDIHDAJOR-UHFFFAOYSA-N Synonym: Phenolsulfonephthalein 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

Sudan IV (Certified Biological Stain), Fisher Chemical

CAS: 85-83-6 Molecular Formula: C24H20N4O Molecular Weight (g/mol): 380.451 MDL Number: MFCD00003893 InChI Key: KMDLOETUWUPGMB-UHFFFAOYSA-N Synonym: Lipid Crimson PubChem CID: 6797604 IUPAC Name: 1-[[2-methyl-4-[(2-methylphenyl)diazenyl]phenyl]hydrazinylidene]naphthalen-2-one SMILES: CC1=CC=CC=C1N=NC2=CC(=C(C=C2)NN=C3C(=O)C=CC4=CC=CC=C43)C

Alfa Aesar™ Congo Red, indicator grade

CAS: 573-58-0 Molecular Formula: C32H22N6Na2O6S2 Molecular Weight (g/mol): 696.664 MDL Number: MFCD00004028 InChI Key: IQFVPQOLBLOTPF-UHFFFAOYSA-L Synonym: C.I. 22120 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+]

Eosin Y (Disodium Salt), Fisher BioReagents

CAS: 17372-87-1 Molecular Formula: C20H12Br4Na2O8 Molecular Weight (g/mol): 745.904 InChI Key: MASXMTNVNASWNH-UHFFFAOYSA-L Synonym: Acid Red 87 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+]

Nile Red 99%, ACROS Organics™

CAS: 7385-67-3 Molecular Formula: C20H18N2O2 Molecular Weight (g/mol): 318.376 MDL Number: MFCD00011639 InChI Key: VOFUROIFQGPCGE-UHFFFAOYSA-N Synonym: Nile blue A oxazone PubChem CID: 65182 ChEBI: CHEBI:52169 IUPAC Name: 9-(diethylamino)benzo[a]phenoxazin-5-one SMILES: CCN(CC)C1=CC2=C(C=C1)N=C3C4=CC=CC=C4C(=O)C=C3O2

Quinaldine red, pure, ACROS Organics™

CAS: 117-92-0 Molecular Formula: C21H23IN2 Molecular Weight (g/mol): 430.333 MDL Number: MFCD00011968 InChI Key: JOLANDVPGMEGLK-UHFFFAOYSA-M Synonym: 2-[4-(Dimethylamino)styryl]-1-ethylquinolinium iodide PubChem CID: 5702759 IUPAC Name: 4-[(E)-2-(1-ethylquinolin-1-ium-2-yl)ethenyl]-N,N-dimethylaniline;iodide SMILES: CC[N+]1=C(C=CC2=CC=CC=C21)C=CC3=CC=C(C=C3)N(C)C.[I-]

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 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

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 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+]

Cresol Red, Indicator Grade, Pure, ACROS Organics™

CAS: 1733-12-6 Molecular Formula: C21H18O5S Molecular Weight (g/mol): 382.43 MDL Number: MFCD00005878 InChI Key: OBRMNDMBJQTZHV-UHFFFAOYSA-N PubChem CID: 73013 ChEBI: CHEBI:86218 IUPAC Name: 4-[3-(4-hydroxy-3-methylphenyl)-1,1-dioxo-2,1$l^{6}-benzoxathiol-3-yl]-2-methylphenol SMILES: CC1=C(C=CC(=C1)C2(C3=CC=CC=C3S(=O)(=O)O2)C4=CC(=C(C=C4)O)C)O

Acid Red 18 85.0+%, TCI America™

CAS: 2611-82-7 Molecular Formula: C20H14N2Na3O10S3 Molecular Weight (g/mol): 607.485 MDL Number: MFCD00004084 InChI Key: JRSQHUHHNFENCT-DZGBHZPSSA-N Synonym: New Coccine, Ponceau 4R, Scarlet 3R PubChem CID: 131851859 IUPAC Name: (8Z)-7-oxo-8-[(4-sulfonaphthalen-1-yl)hydrazinylidene]naphthalene-1,3-disulfonic acid;sodium SMILES: C1=CC=C2C(=C1)C(=CC=C2S(=O)(=O)O)NN=C3C(=O)C=CC4=CC(=CC(=C43)S(=O)(=O)O)S(=O)(=O)O.[Na].[Na].[Na]

Methyl Red, Sodium Salt, BAKER ANALYZED™ A.C.S. Reagent, J.T.Baker™

CAS: 845-10-3 Molecular Formula: C15H14N3NaO2 Molecular Weight (g/mol): 291.286 InChI Key: GNTPCYMJCJNRQB-UHFFFAOYSA-M Synonym: C.I. 13020 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+]

Alfa Aesar™ Brilliant Crocein

CAS: 5413-75-2 Molecular Formula: C22H16N4Na2O7S2 Molecular Weight (g/mol): 558.491 MDL Number: MFCD00003907 InChI Key: BMBHMIGLJQAUTJ-HKWNQDJZSA-N Synonym: C.I. 27290; Crocein Scarlet MOO PubChem CID: 88641610 IUPAC Name: (8Z)-7-oxo-8-[(4-phenyldiazenylphenyl)hydrazinylidene]naphthalene-1,3-disulfonic acid;sodium SMILES: C1=CC=C(C=C1)N=NC2=CC=C(C=C2)NN=C3C(=O)C=CC4=CC(=CC(=C43)S(=O)(=O)O)S(=O)(=O)O.[Na].[Na]

Methyl Red, ACS, Alfa Aesar™

CAS: 493-52-7 Molecular Formula: C15H15N3O2 Molecular Weight (g/mol): 269.304 MDL Number: MFCD00002425 InChI Key: CEQFOVLGLXCDCX-UHFFFAOYSA-N Synonym: 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

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-]

Nuclear fast red (C.I. 60760), For Microscopy, Certistain™, MilliporeSigma™

CAS: 6409-77-4 Molecular Formula: C14H11NNaO7S Molecular Weight (g/mol): 360.292 InChI Key: KDEATZKCHKVXGA-UHFFFAOYSA-N Synonym: C.I. 60760 PubChem CID: 131675027 IUPAC Name: 4-amino-1,3-dihydroxy-9,10-dioxoanthracene-2-sulfonic acid;molecular hydrogen;sodium SMILES: [HH].C1=CC=C2C(=C1)C(=O)C3=C(C2=O)C(=C(C(=C3N)O)S(=O)(=O)O)O.[Na]

Methyl Red, ACS reagent, ACROS Organics™

CAS: 493-52-7 Molecular Formula: C15H15N3O2 Molecular Weight (g/mol): 269.304 MDL Number: MFCD00002425 InChI Key: CEQFOVLGLXCDCX-UHFFFAOYSA-N Synonym: 2-[4-(Dimethylamino)phenylazo]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

Alfa Aesar™ Neutral Red, ACS

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; 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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