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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1 – 15 of 985 results

Thermo Scientific Chemicals Nile Red, 99%, pure

CAS: 7385-67-3 Molecular Formula: C20H18N2O2 Molecular Weight (g/mol): 318.38 MDL Number: MFCD00011639 InChI Key: VOFUROIFQGPCGE-UHFFFAOYSA-N Synonym: Nile blue A oxazone PubChem CID: 65182 ChEBI: CHEBI:52169 SMILES: CCN(CC)C1=CC=C2N=C3C(OC2=C1)=CC(=O)C1=CC=CC=C31

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Specifications

PubChem CID	65182
CAS	7385-67-3
Molecular Weight (g/mol)	318.38
ChEBI	CHEBI:52169
MDL Number	MFCD00011639
SMILES	CCN(CC)C1=CC=C2N=C3C(OC2=C1)=CC(=O)C1=CC=CC=C31
Synonym	Nile blue A oxazone
InChI Key	VOFUROIFQGPCGE-UHFFFAOYSA-N
Molecular Formula	C20H18N2O2

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Thermo Scientific™ Gram Stain Kit

Differentiate gram-positive organisms from gram-negative organisms using Gram Stain Kit.

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Ninhydrin Monohydrate, Extra Pure, Fisher Chemical™

CAS: 485-47-2 Molecular Formula: C9H6O4 Molecular Weight (g/mol): 178.143 MDL Number: 3791 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

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Specifications

PubChem CID	10236
CAS	485-47-2
Molecular Weight (g/mol)	178.143
ChEBI	CHEBI:86374
MDL Number	3791
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

Thermo Scientific Chemicals Phenol Red, pure, indicator

CAS: 143-74-8 Molecular Formula: C19H14O5S Molecular Weight (g/mol): 354.38 MDL Number: MFCD00003552 InChI Key: BELBBZDIHDAJOR-UHFFFAOYSA-N Synonym: Phenolsulfonephthalein PubChem CID: 4766 ChEBI: CHEBI:31991 SMILES: OC1=CC=C(C=C1)C1(OS(=O)(=O)C2=CC=CC=C12)C1=CC=C(O)C=C1

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Specifications

PubChem CID	4766
CAS	143-74-8
Molecular Weight (g/mol)	354.38
ChEBI	CHEBI:31991
MDL Number	MFCD00003552
SMILES	OC1=CC=C(C=C1)C1(OS(=O)(=O)C2=CC=CC=C12)C1=CC=C(O)C=C1
Synonym	Phenolsulfonephthalein
InChI Key	BELBBZDIHDAJOR-UHFFFAOYSA-N
Molecular Formula	C19H14O5S

Thermo Scientific Chemicals Methylene Blue, pure, certified, residual water

CAS: 7220-79-3 Molecular Formula: C16H24ClN3O3S Molecular Weight (g/mol): 373.90 MDL Number: MFCD00150008 InChI Key: XQAXGZLFSSPBMK-UHFFFAOYSA-M Synonym: Basic Blue 9 PubChem CID: 6099 ChEBI: CHEBI:6872 IUPAC Name: [7-(dimethylamino)phenothiazin-3-ylidene]-dimethylazanium;chloride SMILES: O.O.O.[Cl-].CN(C)C1=CC2=[S+]C3=CC(=CC=C3N=C2C=C1)N(C)C

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Specifications

PubChem CID	6099
CAS	7220-79-3
Molecular Weight (g/mol)	373.90
ChEBI	CHEBI:6872
MDL Number	MFCD00150008
SMILES	O.O.O.[Cl-].CN(C)C1=CC2=[S+]C3=CC(=CC=C3N=C2C=C1)N(C)C
Synonym	Basic Blue 9
IUPAC Name	[7-(dimethylamino)phenothiazin-3-ylidene]-dimethylazanium;chloride
InChI Key	XQAXGZLFSSPBMK-UHFFFAOYSA-M
Molecular Formula	C16H24ClN3O3S

Thermo Scientific Chemicals Methylene Blue, 1% w/v aq. soln.

CAS: 122965-43-9 | C₁₆H₁₈ClN₃S

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Specifications

Concentration or Composition (by Analyte or Components)	3, 7-Bis(dimethylamino)phenothiazin-5-ium chloride hydrate: 1.0%; Water: 99%
CAS	7732-18-5
MDL Number	MFCD00012111
Physical Form	Liquid
Solubility Information	Miscible with ethanol,chloroform,glacial acetic acid and glycerol. Slightly miscible with pyridine. Immiscible with ethyl ether,xylene,oleic acid,ethanol and acetone.
Chemical Name or Material	Methylene Blue
TSCA	Yes
Recommended Storage	Ambient temperatures
Molecular Formula	C₁₆H₁₈ClN₃S
Formula Weight	319.86
Vapor Pressure	23 hPa (17mm Hg) at 20°C
Assay Percent Range	1% w/v aqueous solution

Epredia™ Richard-Allan Scientific™ Periodic Acid-Schiff (PAS), Schiff Reagent

Demonstrate the patterns and presence of specific carbohydrates with Epredia™ Richard-Allan Scientific™ Periodic Acid-Schiff (PAS) Solution

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Epredia™ Shandon™ Tissue-Marking Dyes, Tissue marking dye kit

Permanently mark the margins of excised surgical specimens for exact orientation with Epredia™ Shandon™ Tissue-Marking Dyes.

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Specifications

Product Type	Tissue Marking Dye

Crystal Violet, Fisher Chemical™

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Thermo Scientific Chemicals Methyl Orange, ACS reagent

CAS: 547-58-0 Molecular Formula: C14H14N3NaO3S Molecular Weight (g/mol): 327.334 MDL Number: MFCD00007502 InChI Key: STZCRXQWRGQSJD-UHFFFAOYSA-M Synonym: 4-[4-(Dimethylamino)phenylazo]benzenesulfonic acid, sodium salt,Acid Orange 52,C.I. 13025,MO,Helianthise PubChem CID: 23673835 IUPAC Name: sodium;4-[[4-(dimethylamino)phenyl]diazenyl]benzenesulfonate SMILES: CN(C)C1=CC=C(C=C1)N=NC2=CC=C(C=C2)S(=O)(=O)[O-].[Na+]

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Specifications

PubChem CID	23673835
CAS	547-58-0
Molecular Weight (g/mol)	327.334
MDL Number	MFCD00007502
SMILES	CN(C)C1=CC=C(C=C1)N=NC2=CC=C(C=C2)S(=O)(=O)[O-].[Na+]
Synonym	4-[4-(Dimethylamino)phenylazo]benzenesulfonic acid, sodium salt,Acid Orange 52,C.I. 13025,MO,Helianthise
IUPAC Name	sodium;4-[[4-(dimethylamino)phenyl]diazenyl]benzenesulfonate
InChI Key	STZCRXQWRGQSJD-UHFFFAOYSA-M
Molecular Formula	C14H14N3NaO3S

Thermo Scientific Chemicals Aniline Blue, sodium salt, pure, water soluble, high purity biological stain

CAS: 28983-56-4 Molecular Formula: C37H26N3Na2O9S3 Molecular Weight (g/mol): 798.79 MDL Number: MFCD00058509 InChI Key: TUHAIJABPUJAEY-UHFFFAOYSA-K Synonym: Acid Blue 22,C.I. 42755 PubChem CID: 76956083 IUPAC Name: disodium;4-[4-[[4-(4-sulfoanilino)phenyl]-[4-(4-sulfonatophenyl)azaniumylidenecyclohexa-2,5-dien-1-ylidene]methyl]anilino]benzenesulfonate SMILES: [Na+].[Na+].[O-]S(=O)(=O)C1=CC=CC=C1NC1=CC=C(C=C1)C(C1=CC=C(NC2=CC=CC=C2S([O-])(=O)=O)C=C1)=C1C=CC(C=C1)=NC1=CC=CC=C1S([O-])(=O)=O

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Specifications

PubChem CID	76956083
CAS	28983-56-4
Molecular Weight (g/mol)	798.79
MDL Number	MFCD00058509
SMILES	[Na+].[Na+].[O-]S(=O)(=O)C1=CC=CC=C1NC1=CC=C(C=C1)C(C1=CC=C(NC2=CC=CC=C2S([O-])(=O)=O)C=C1)=C1C=CC(C=C1)=NC1=CC=CC=C1S([O-])(=O)=O
Synonym	Acid Blue 22,C.I. 42755
IUPAC Name	disodium;4-[4-[[4-(4-sulfoanilino)phenyl]-[4-(4-sulfonatophenyl)azaniumylidenecyclohexa-2,5-dien-1-ylidene]methyl]anilino]benzenesulfonate
InChI Key	TUHAIJABPUJAEY-UHFFFAOYSA-K
Molecular Formula	C37H26N3Na2O9S3

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Epredia™ Shandon™ Eosin-Y Stain

Produce brilliant staining with Epredia™ Shandon™ Eosin-Y, a fast-acting cytoplasmic counterstain.

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Thermo Scientific Chemicals Methyl Orange, pure, indicator

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Specifications

PubChem CID	23673835
CAS	547-58-0
Molecular Weight (g/mol)	327.334
MDL Number	MFCD00007502
SMILES	CN(C)C1=CC=C(C=C1)N=NC2=CC=C(C=C2)S(=O)(=O)[O-].[Na+]
Synonym	4-[4-(Dimethylamino)phenylazo]benzenesulfonic acid, sodium salt,Acid Orange 52,C.I. 13025,MO,Helianthise
IUPAC Name	sodium;4-[[4-(dimethylamino)phenyl]diazenyl]benzenesulfonate
InChI Key	STZCRXQWRGQSJD-UHFFFAOYSA-M
Molecular Formula	C14H14N3NaO3S

Coumarin, 99+%

CAS: 91-64-5 Molecular Formula: C9H6O2 Molecular Weight (g/mol): 146.15 MDL Number: MFCD00006850 InChI Key: ZYGHJZDHTFUPRJ-UHFFFAOYSA-N Synonym: 2H-1-Benzopyran-2-one PubChem CID: 323 ChEBI: CHEBI:28794 IUPAC Name: chromen-2-one SMILES: O=C1OC2=CC=CC=C2C=C1

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Specifications

PubChem CID	323
CAS	91-64-5
Molecular Weight (g/mol)	146.15
ChEBI	CHEBI:28794
MDL Number	MFCD00006850
SMILES	O=C1OC2=CC=CC=C2C=C1
Synonym	2H-1-Benzopyran-2-one
IUPAC Name	chromen-2-one
InChI Key	ZYGHJZDHTFUPRJ-UHFFFAOYSA-N
Molecular Formula	C9H6O2

Thermo Scientific Chemicals Nitrazine Yellow, indicator grade

CAS: 1-1-5424 Molecular Formula: C5H5N3O2 Molecular Weight (g/mol): 139.11 MDL Number: MFCD00003938 InChI Key: ZAGZIOYVEIDDJA-UHFFFAOYSA-N Synonym: 2-(2,4-Dinitrophenylazo)-1-naphthol-3,6-disulfonic acid, disodium salt,3-(2, 4-Dinitrophenylazo)-4-hydroxy-2, 7-naphthalenedisulfonic acid,2-(2, 4-Dinitrophenylazo)-1-naphthol-3, 6-disulfonic acid PubChem CID: 72656 IUPAC Name: 3-aminopyrazine-2-carboxylic acid SMILES: C1=CN=C(C(=N1)C(=O)O)N

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Specifications

PubChem CID	72656
CAS	1-1-5424
Molecular Weight (g/mol)	139.11
MDL Number	MFCD00003938
SMILES	C1=CN=C(C(=N1)C(=O)O)N
Synonym	2-(2,4-Dinitrophenylazo)-1-naphthol-3,6-disulfonic acid, disodium salt,3-(2, 4-Dinitrophenylazo)-4-hydroxy-2, 7-naphthalenedisulfonic acid,2-(2, 4-Dinitrophenylazo)-1-naphthol-3, 6-disulfonic acid
IUPAC Name	3-aminopyrazine-2-carboxylic acid
InChI Key	ZAGZIOYVEIDDJA-UHFFFAOYSA-N
Molecular Formula	C5H5N3O2

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Crystal Violet, Fisher Chemical™ SureTRACESupports traceability with guaranteed access to certificates and proactive change notifications.Learn More

Crystal Violet, Fisher Chemical™