Stains and Dyes

A variety of solutions used to selectively bind to and enhance the visibility of biological structures using color and/or fluorescence; used for histology, protein staining, electrophoresis, bacterial classification, blotting, etc.

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541 – 555 of 7,393 results

541

Methylene blue, trihydrate, Molecular biology reagent grade, MP Biomedicals™

CAS: 61-73-4 Molecular Formula: C16H18ClN3S Molecular Weight (g/mol): 319.851 InChI Key: CXKWCBBOMKCUKX-UHFFFAOYSA-M Synonym: Methylthionine chloride,C.I. 53015 PubChem CID: 6099 ChEBI: CHEBI:6872 IUPAC Name: [7-(dimethylamino)phenothiazin-3-ylidene]-dimethylazanium;chloride SMILES: CN(C)C1=CC2=C(C=C1)N=C3C=CC(=[N+](C)C)C=C3S2.[Cl-]

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Specifications

PubChem CID	6099
CAS	61-73-4
Molecular Weight (g/mol)	319.851
ChEBI	CHEBI:6872
SMILES	CN(C)C1=CC2=C(C=C1)N=C3C=CC(=[N+](C)C)C=C3S2.[Cl-]
Synonym	Methylthionine chloride,C.I. 53015
IUPAC Name	[7-(dimethylamino)phenothiazin-3-ylidene]-dimethylazanium;chloride
InChI Key	CXKWCBBOMKCUKX-UHFFFAOYSA-M
Molecular Formula	C16H18ClN3S

542

MilliporeSigma™ Ninhydrin, Calbiochem™,

CAS: 485-47-2 Molecular Formula: C9H6O4 Molecular Weight (g/mol): 178.143 InChI Key: FEMOMIGRRWSMCU-UHFFFAOYSA-N PubChem CID: 10236 ChEBI: CHEBI:86374 IUPAC Name: 2,2-dihydroxyindene-1,3-dione SMILES: C1=CC=C2C(=C1)C(=O)C(C2=O)(O)O

Pricing & Availability
Specifications

PubChem CID	10236
CAS	485-47-2
Molecular Weight (g/mol)	178.143
ChEBI	CHEBI:86374
SMILES	C1=CC=C2C(=C1)C(=O)C(C2=O)(O)O
IUPAC Name	2,2-dihydroxyindene-1,3-dione
InChI Key	FEMOMIGRRWSMCU-UHFFFAOYSA-N
Molecular Formula	C9H6O4

543

CAS	143-74-8
Molecular Weight (g/mol)	354.38 g/mol
Color	Red to Rust

544

Potassium Indigotrisulfonate, Sigma-Aldrich

CAS: 67627-18-3 Molecular Weight (g/mol): 616.72 g/mol

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Specifications

CAS	67627-18-3
Molecular Weight (g/mol)	616.72 g/mol

545

Sudan Black B, Certified, Sigma-Aldrich

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546

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Ferroin Indicator, 0.025M, Solution, Spectrum™ Chemical

Pricing & Availability
Specifications

CAS	7732-18-5
Color	Dark Red
Packaging	Amber Glass Bottle
Chemical Name or Material	Ferroin Indicator Solution
Grade	Chemical Solution
Concentration	0.025 M

547

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Thermo Scientific Chemicals Tropaeolin O, pure

CAS: 547-57-9 Molecular Formula: C12H10N2NaO5S Molecular Weight (g/mol): 317.271 MDL Number: MFCD00007499 InChI Key: YOGUPPQYRWYKGT-IRIIKGHASA-N Synonym: Acid orange 6,C.I. 14270,4-(2, 4-Dihydroxyphenylazo)benzenesulfonic acid, sodium salt PubChem CID: 87071197 IUPAC Name: 4-[(2Z)-2-(2-hydroxy-4-oxocyclohexa-2,5-dien-1-ylidene)hydrazinyl]benzenesulfonic acid;sodium SMILES: C1=CC(=CC=C1NN=C2C=CC(=O)C=C2O)S(=O)(=O)O.[Na]

Pricing & Availability
Specifications

PubChem CID	87071197
CAS	547-57-9
Molecular Weight (g/mol)	317.271
MDL Number	MFCD00007499
SMILES	C1=CC(=CC=C1NN=C2C=CC(=O)C=C2O)S(=O)(=O)O.[Na]
Synonym	Acid orange 6,C.I. 14270,4-(2, 4-Dihydroxyphenylazo)benzenesulfonic acid, sodium salt
IUPAC Name	4-[(2Z)-2-(2-hydroxy-4-oxocyclohexa-2,5-dien-1-ylidene)hydrazinyl]benzenesulfonic acid;sodium
InChI Key	YOGUPPQYRWYKGT-IRIIKGHASA-N
Molecular Formula	C12H10N2NaO5S

548

Erythrosin B Sodium Salt, MP Biomedicals™

CAS: 568-63-8 Molecular Formula: C40H14I8Na2O10 Molecular Weight (g/mol): 1715.757 InChI Key: DKRYETBOLGDIOK-UHFFFAOYSA-L Synonym: Acid Red 51, Solvent Red 140, 2',4',5',7'-Tetraiodofluorescein, FD&C Red No. 3, Erythrosin extra bluish 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+]

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Specifications

PubChem CID	131676154
CAS	568-63-8
Molecular Weight (g/mol)	1715.757
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+]
Synonym	Acid Red 51, Solvent Red 140, 2',4',5',7'-Tetraiodofluorescein, FD&C Red No. 3, Erythrosin extra bluish
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
InChI Key	DKRYETBOLGDIOK-UHFFFAOYSA-L
Molecular Formula	C40H14I8Na2O10

549

Alizarin, Sigma-Aldrich

CAS: 72-48-0 Molecular Weight (g/mol): 240.21 g/mol

Pricing & Availability
Specifications

CAS	72-48-0
Molecular Weight (g/mol)	240.21 g/mol

550

Oil Red O BioReagent, Suitable for Electrophoresis, MilliporeSigma™ Supelco™

MDL Number: MFCD00003898 Synonym: 1-([4-(Xylylazo)xylyl]azo)-2-naphthol; 1-[2,5-Dimethyl-4-(2,5-dimethylphenylazo)phenylazo]-2-naphthol; Solvent Red 27; Solvent Red 27

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Specifications

MDL Number	MFCD00003898
Synonym	1-([4-(Xylylazo)xylyl]azo)-2-naphthol; 1-[2,5-Dimethyl-4-(2,5-dimethylphenylazo)phenylazo]-2-naphthol; Solvent Red 27; Solvent Red 27

551

MilliporeSigma™ Gram's Decolorizing Solution

For the Gram staining method

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Specifications

Packaging	Plastic Bottle
Storage Requirements	15° to 25°C

552

Sigma-Aldrich Gram Stain Kit For Films

For delineating Gram-positive and Gram-negative organisms in films.

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553

Novus Biologicals™ Hematoxylin Counterstain

based on Gill’s formulation, it produces blue stained nuclei with crisp detail.

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554

Novus Biologicals™ Methyl Green Counterstain

stains cell nuclei light green, an excellent alternative in multiple labeling when hematoxylin obscures the substrate colors.

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555

Thermo Scientific Chemicals Tropaeolin O

CAS: 547-57-9 Molecular Formula: C12H10N2NaO5S Molecular Weight (g/mol): 317.271 MDL Number: MFCD00007499 InChI Key: YOGUPPQYRWYKGT-IRIIKGHASA-N Synonym: Acid Orange 6; C.I. 14270 PubChem CID: 87071197 IUPAC Name: 4-[(2Z)-2-(2-hydroxy-4-oxocyclohexa-2,5-dien-1-ylidene)hydrazinyl]benzenesulfonic acid;sodium SMILES: C1=CC(=CC=C1NN=C2C=CC(=O)C=C2O)S(=O)(=O)O.[Na]

Pricing & Availability
Specifications

PubChem CID	87071197
CAS	547-57-9
Molecular Weight (g/mol)	317.271
MDL Number	MFCD00007499
SMILES	C1=CC(=CC=C1NN=C2C=CC(=O)C=C2O)S(=O)(=O)O.[Na]
Synonym	Acid Orange 6; C.I. 14270
IUPAC Name	4-[(2Z)-2-(2-hydroxy-4-oxocyclohexa-2,5-dien-1-ylidene)hydrazinyl]benzenesulfonic acid;sodium
InChI Key	YOGUPPQYRWYKGT-IRIIKGHASA-N
Molecular Formula	C12H10N2NaO5S

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