Staining Reagents

Stains, staining systems, and blocking agents in a variety of types, grades, molecular weights, purities, and pH ranges; used to elucidate important structures of microorganisms including bacteria, viruses, protozoa, etc.

Stains and Dyes (9,154)

Tissue Stain Blocking Reagents (82)

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2,236 – 2,250 of 7,076 results

2,236

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

2,237

Fisher Science Education™ Crystal Violet, 0.5% Solution

Pricing & Availability

2,238

Fisher Science Education™ Gram Stain Kit

Bacteria stain set for Gram negative and positive results.

Pricing & Availability

2,239

Fisher Science Education™ Phenol Red Indicator Solution, 0.02% w/v

CAS: 34487-61-1 Molecular Formula: C19H13NaO5S Molecular Weight (g/mol): 376.358 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+]

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 Salt
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

2,240

Sigma Diagnostics™ Wright Stain, Modified

Used for differentially staining the cellular elements of blood

Pricing & Availability
Specifications

Format	Solution
Color	Blue
pH	6.75 - 6.95
Shelf Life	Expiry date on the label.
Concentration	0.3% Buffered in Methanol
Storage Requirements	18-26°C

2,241

Sigma Diagnostics™ Bouin's Solution

Fixative for preserving soft and delicate structures

Pricing & Availability
Specifications

Format	Solution
Product Type	Bouin’s solution
Color	Yellow
Synonym	Bouin’s fluid
For Use With (Application)	Used as a mordant in various trichrome procedures

2,242

Sigma Aldrich Quinaldine

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.

Pricing & Availability
Specifications

Boiling Point	105°C to 107°C (10 mmHg), 248°C (lit.)
Percent Purity	≥95.0% (GC)
Linear Formula	C10H9N
CAS	91-63-4
Molecular Weight (g/mol)	143.19
MDL Number	MFCD00006756
Synonym	2-Methylquinoline
RTECS Number	UZ9625000
Recommended Storage	Room Temperature
Molecular Formula	C10H9N
EINECS Number	202-085-1
Density	1.058 g/mL (at 25°C (literature))
Melting Point	-9°C to +3°C (lit.)

2,243

Sigma Diagnostics™ Eosin Y Solution, aqueous

General purpose cytoplasmic counterstain

Pricing & Availability
Specifications

Type	Aqueous Eosin Y Stain
Format	Solution
Product Type	Eosin Y solution, aqueous
Storage Requirements	18–26°C
For Use With (Application)	Used with hematoxylin and eosin staining

2,244

Sigma Diagnostics™ Eosin Y Solution, alcoholic

General-purpose cytoplasmic counterstain

Pricing & Availability
Specifications

Format	Solution
Product Type	Eosin Y solution, alcoholic
Color	Bright Pink to Pinkish-Orange
Shelf Life	Expiry date on the label
For Use With (Application)	Used with hematoxylin and eosin staining

2,245

Sigma Diagnostics™ Carbol-fuchsin solution

Used to demonstrate Mycobacterium tuberculosis in tissue sections and on smears

Pricing & Availability
Specifications

Type	Carbol Fuchsin
Format	Solution
Product Type	Carbol-fuchsin solution
Color	Dark Red Purple with Metallic Sheen
Storage Requirements	18–26°C
For Use With (Application)	For use in the Acid Fast Stain, Procedure No. HT80 with Malachite Green counterstain Catalog No. HT80-2

2,246

Hoefer, Inc Coomassie Brilliant Blue R, Hoefer™

CAS: 6104-59-2 Molecular Formula: C45H44N3NaO7S2 Molecular Weight (g/mol): 825.97 MDL Number: MFCD00041762 InChI Key: HAEGGLCXLFWTBE-UHFFFAOYSA-M Synonym: Brilliant Blue R,Acid Blue 83 PubChem CID: 61365 IUPAC Name: sodium {4-[(4-ethoxyphenyl)amino]phenyl}bis(4-{ethyl[(3-sulfonatophenyl)methyl]amino}phenyl)methylium SMILES: [Na+].CCOC1=CC=C(NC2=CC=C(C=C2)[C+](C2=CC=C(C=C2)N(CC)CC2=CC=CC(=C2)S([O-])(=O)=O)C2=CC=C(C=C2)N(CC)CC2=CC=CC(=C2)S([O-])(=O)=O)C=C1

Pricing & Availability
Specifications

PubChem CID	61365
CAS	6104-59-2
Molecular Weight (g/mol)	825.97
MDL Number	MFCD00041762
SMILES	[Na+].CCOC1=CC=C(NC2=CC=C(C=C2)[C+](C2=CC=C(C=C2)N(CC)CC2=CC=CC(=C2)S([O-])(=O)=O)C2=CC=C(C=C2)N(CC)CC2=CC=CC(=C2)S([O-])(=O)=O)C=C1
Synonym	Brilliant Blue R,Acid Blue 83
IUPAC Name	sodium {4-[(4-ethoxyphenyl)amino]phenyl}bis(4-{ethyl[(3-sulfonatophenyl)methyl]amino}phenyl)methylium
InChI Key	HAEGGLCXLFWTBE-UHFFFAOYSA-M
Molecular Formula	C45H44N3NaO7S2

2,247

Sigma Aldrich 4-(3-Trifluoromethyl-benzyl)-piperidine

Pricing & Availability

2,248

Sigma Diagnostics™ Naphthol AS-D Chloroacetate (Specific Esterase) Kit

Used to detect neutrophils in peripheral blood, marrow or tissue sections embedded in paraffin

Pricing & Availability

2,249

Sigma Diagnostics™ WeigertÆs iron hematoxylin solution

Pricing & Availability

2,250

Sigma Diagnostics™ Malachite Green Solution

Acts as both a counterstain and a differentiator

Pricing & Availability
Specifications

Type	Malachite Green Solution
Format	Solution
Product Type	Malachite Green 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

Staining Reagents

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Fisher Science Education™ Indicator Solution, Universal Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More Science EducationA science education product.

Fisher Science Education™ Crystal Violet, 0.5% Solution Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More Science EducationA science education product.

Fisher Science Education™ Gram Stain Kit Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More Science EducationA science education product.

Fisher Science Education™ Phenol Red Indicator Solution, 0.02% w/v Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More Science EducationA science education product.

Fisher Science Education™ Indicator Solution, Universal

Fisher Science Education™ Crystal Violet, 0.5% Solution

Fisher Science Education™ Gram Stain Kit

Fisher Science Education™ Phenol Red Indicator Solution, 0.02% w/v