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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2,236 – 2,250 of 7,222 results

2,236

Fisher Science Education™ Rose Bengal Solution

CAS: 632-69-9 Molecular Formula: C20H4Cl4I4Na2O5 Molecular Weight (g/mol): 1019.644 InChI Key: DPBQSRZQYAYDGY-UHFFFAOYSA-N Synonym: Acid Red 94,C.I. 45440 PubChem CID: 87244310 IUPAC Name: sodium;4,5,6,7-tetrachloro-3',6'-dihydroxy-2',4',5',7'-tetraiodospiro[2-benzofuran-3,9'-xanthene]-1-one SMILES: C1=C2C(=C(C(=C1I)O)I)OC3=C(C(=C(C=C3C24C5=C(C(=C(C(=C5Cl)Cl)Cl)Cl)C(=O)O4)I)O)I.[Na].[Na]

Pricing & Availability
Specifications

PubChem CID	87244310
CAS	632-69-9
Molecular Weight (g/mol)	1019.644
SMILES	C1=C2C(=C(C(=C1I)O)I)OC3=C(C(=C(C=C3C24C5=C(C(=C(C(=C5Cl)Cl)Cl)Cl)C(=O)O4)I)O)I.[Na].[Na]
Synonym	Acid Red 94,C.I. 45440
IUPAC Name	sodium;4,5,6,7-tetrachloro-3',6'-dihydroxy-2',4',5',7'-tetraiodospiro[2-benzofuran-3,9'-xanthene]-1-one
InChI Key	DPBQSRZQYAYDGY-UHFFFAOYSA-N
Molecular Formula	C20H4Cl4I4Na2O5

2,237

Fisher Science Education™ Indicator Solution, Universal

Pricing & Availability
Specifications

CAS	518-51-4
Color	Green
DOT Information	DOT Class 3, II, : Flammable Liquid
Chemical Name or Material	Universal Indicator Solution
Synonym	Universal pH Indicator
Shelf Life	18 months
ChemAlert Storage Symbol	Red
Assay Percent Range	<0.2% w/v

2,238

Fisher Science Education™ Fuchsin Acid Staining Solution, 1%

Pricing & Availability

2,239

Fisher Science Education™ Indigo Carmine

CAS: 860-22-0 Molecular Formula: C16H8N2Na2O8S2 Molecular Weight (g/mol): 466.35 MDL Number: MFCD00005723 InChI Key: KHLVKKOJDHCJMG-QDBORUFSSA-L Synonym: Carmine Blue (Biological Stain),C.I. 73015 PubChem CID: 5284351 IUPAC Name: disodium (E)-3,3'-dioxo-1H,1'H,3H,3'H-[2,2'-biindolylidene]-5,5'-disulfonate SMILES: [Na+].[Na+].[O-]S(=O)(=O)C1=CC=C2N\C(C(=O)C2=C1)=C1\NC2=CC=C(C=C2C1=O)S([O-])(=O)=O

Pricing & Availability
Specifications

PubChem CID	5284351
CAS	860-22-0
Molecular Weight (g/mol)	466.35
MDL Number	MFCD00005723
SMILES	[Na+].[Na+].[O-]S(=O)(=O)C1=CC=C2N\C(C(=O)C2=C1)=C1\NC2=CC=C(C=C2C1=O)S([O-])(=O)=O
Synonym	Carmine Blue (Biological Stain),C.I. 73015
IUPAC Name	disodium (E)-3,3'-dioxo-1H,1'H,3H,3'H-[2,2'-biindolylidene]-5,5'-disulfonate
InChI Key	KHLVKKOJDHCJMG-QDBORUFSSA-L
Molecular Formula	C16H8N2Na2O8S2

2,240

Fisher Science Education™ Phenol Red Indicator, ACS Grade

CAS: 34487-61-1 Molecular Formula: C19H13NaO5S Molecular Weight (g/mol): 376.358 InChI Key: HKHYOKBQJILTEI-UHFFFAOYSA-M Synonym: Phenolsulfonephthalein Sodium 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+]

Pricing & Availability
Specifications

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

2,241

Fisher Science Education™ Carmine

CAS: 1390-65-4 Molecular Formula: C22H20O13 Molecular Weight (g/mol): 492.39 MDL Number: MFCD00167028 InChI Key: DGQLVPJVXFOQEV-UHFFFAOYNA-N Synonym: Aluminum Lake PubChem CID: 25113282 IUPAC Name: 3,5,6,8-tetrahydroxy-1-methyl-9,10-dioxo-7-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]-9,10-dihydroanthracene-2-carboxylic acid SMILES: CC1=C(C(O)=O)C(O)=CC2=C1C(=O)C1=C(O)C(C3OC(CO)C(O)C(O)C3O)=C(O)C(O)=C1C2=O

Pricing & Availability
Specifications

PubChem CID	25113282
CAS	1390-65-4
Molecular Weight (g/mol)	492.39
MDL Number	MFCD00167028
SMILES	CC1=C(C(O)=O)C(O)=CC2=C1C(=O)C1=C(O)C(C3OC(CO)C(O)C(O)C3O)=C(O)C(O)=C1C2=O
Synonym	Aluminum Lake
IUPAC Name	3,5,6,8-tetrahydroxy-1-methyl-9,10-dioxo-7-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]-9,10-dihydroanthracene-2-carboxylic acid
InChI Key	DGQLVPJVXFOQEV-UHFFFAOYNA-N
Molecular Formula	C22H20O13

2,242

Fisher Science Education™ 2,6-Dichloroindophenol Sodium Salt

CAS: 620-45-1 Molecular Formula: C12H6Cl2NNaO2 Molecular Weight (g/mol): 290.07 MDL Number: MFCD00150014 InChI Key: FHLDWQLHDYCXKI-UHFFFAOYSA-M Synonym: 2, 6-Dichlorophenol Indophenol Sodium Salt PubChem CID: 23697355 ChEBI: CHEBI:948 IUPAC Name: sodium 2,6-dichloro-4-[(4-oxocyclohexa-2,5-dien-1-ylidene)amino]benzen-1-olate SMILES: [Na+].[O-]C1=C(Cl)C=C(C=C1Cl)N=C1C=CC(=O)C=C1

Pricing & Availability
Specifications

PubChem CID	23697355
CAS	620-45-1
Molecular Weight (g/mol)	290.07
ChEBI	CHEBI:948
MDL Number	MFCD00150014
SMILES	[Na+].[O-]C1=C(Cl)C=C(C=C1Cl)N=C1C=CC(=O)C=C1
Synonym	2, 6-Dichlorophenol Indophenol Sodium Salt
IUPAC Name	sodium 2,6-dichloro-4-[(4-oxocyclohexa-2,5-dien-1-ylidene)amino]benzen-1-olate
InChI Key	FHLDWQLHDYCXKI-UHFFFAOYSA-M
Molecular Formula	C12H6Cl2NNaO2

2,243

Sigma Diagnostics™ Malachite Green Solution

Acts as both a counterstain and a differentiator

Pricing & Availability
Specifications

Format	Solution
Color	Dark Green
Shelf Life	Expiry date on the label
For Use With (Application)	For use with Carbol Fuchsin (HT80-1) in Sigma Acid Fast Stain, Procedure HT80

2,244

Sigma Diagnostics™ Biebrich Scarlet-Acid Fuchsin Solution

Kit component in Masson Trichrome procedure

Pricing & Availability

2,245

Sigma Diagnostics™ Tartrazine Solution

For in vitro diagnostic use

Pricing & Availability
Specifications

Format	Solution
Color	Yellow
Shelf Life	Expiry date on the label

2,246

Sigma Aldrich Antimony

MilliporeSigma Sigma Organics products encompass a wide range of quality reagents, solvents, catalysts, and building blocks for organic synthesis. From benchtop discovery to process development and scale-up, Sigma Organics solutions are built to meet the needs of synthetic chemists.

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2,247

Sigma Aldrich Platinum

Pricing & Availability

2,248

Boiling Point	4377°C
Percent Purity	99.2%
Linear Formula	Zr
CAS	7440-67-7
Molecular Weight (g/mol)	91.22
MDL Number	MFCD00011303
Synonym	Zirconium; ZR000300
Recommended Storage	Room Temperature
Molecular Formula	Zr
Density	6.5 g/mL (at 25°C)
Melting Point	1852°C

2,249

Sigma Aldrich Tungsten

Pricing & Availability
Specifications

Boiling Point	5660°C
Percent Purity	99.95%
Linear Formula	W
CAS	7440-33-7
Molecular Weight (g/mol)	183.84
MDL Number	MFCD00011461
Synonym	Tungsten; W 007928; W
Recommended Storage	Room Temperature
Molecular Formula	W
Density	19.3 g/mL (at 25°C)
Melting Point	3410°C

2,250

Sigma Aldrich Magnesium-aluminum-zinc alloy, Mg96Al3Zn1

Pricing & Availability
Specifications

Synonym	MG017910
Recommended Storage	Room Temperature

Stains and Dyes

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Fisher Science Education™ Rose Bengal Solution Science EducationA science education product.

Fisher Science Education™ Indicator Solution, Universal Science EducationA science education product.

Fisher Science Education™ Fuchsin Acid Staining Solution, 1% Science EducationA science education product.

Fisher Science Education™ Indigo Carmine Science EducationA science education product.

Fisher Science Education™ Phenol Red Indicator, ACS Grade Science EducationA science education product.

Fisher Science Education™ Carmine Science EducationA science education product.

Fisher Science Education™ 2,6-Dichloroindophenol Sodium Salt Science EducationA science education product.