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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 (9,258)
Tissue Stain Blocking Reagents (83)

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1,726 – 1,740 of 7,188 results
1,726

Phenolphthalein, 0.5% In 50% Ethanol, pH 8.3 to 10.0 Colorless to Pink, Certified, LabChem™
GSA_VA

Linear Formula C20H14O4
Color Colorless to Pink
Physical Form Liquid
Chemical Name or Material Phenolphthalein
Grade Certified
Identification Passes Test
Density 0.95g/mL
CAS 77-09-8
Decomposition Information Carbon monoxide; Carbon dioxide
Health Hazard 2 GHS H Statement
Flammable liquid and vapor.
May cause cancer.
Suspected of damaging the unborn child (oral).
Causes damage to organs (central nervous system, optic nerve) (oral, dermal).
Packaging Poly Bottle
Solubility Information Soluble in water
Health Hazard 1 Danger
Recommended Storage Room Temperature
Formula Weight 318.32
Specific Gravity 0.95g/mL
CAS Max % 0.5
1,727

Methyl Red-Methylene Blue, Mixed Indicator, for Nitrogen (Ammonia), Nitrogen (Organic), Certified, LabChem™

Boiling Point 78°C
Linear Formula C15H14N3O2Na
Color Black/Green
Physical Form Liquid
Chemical Name or Material Methyl Red-Methylene Blue
Grade Certified
Identification Passes Test
Name Note Mixed Indicator, for Nitrogen (Ammonia), Nitrogen (Organic)
CAS 61-73-4
Health Hazard 3 GHS P Statement
Obtain special instructions before use.
Do not handle until all safety precautions have been read and understood.
Keep away from heat, sparks, open flames, hot surfaces.
No smoking.
Keep container tightly closed.
Ground/bond container and receiving equipment.
Use explosion-proof electrical, ventilating, lighting equipment.
Use only non-sparking tools.
Take precautionary measures against static discharge.
Do not breathe mist, vapors, spray.
Do not eat, drink or smoke when using this product.
Wear protective gloves, eye protection.
Wash exposed skin thoroughly after handling.
If exposed or concerned: Get medical advice/attention.
If on skin (or hair): Remove/Take off immediately all contaminated clothing.
Rinse skin with water/shower.
In case of fire: Use alcohol resistant foam, carbon dioxide (CO2), extinguishing powder to extinguish.
Store locked up in a cool, well-ventilated place.
Dispose of contents/container to comply with local, state and federal regulations.
Decomposition Information Carbon monoxide; Carbon dioxide; May release flammable gases
Health Hazard 2 GHS H Statement
Highly flammable liquid and vapor.
Suspected of damaging the unborn child (oral).
Causes damage to organs (central nervous system, kidneys, liver, optic nerve).
Flash Point 13°C
Packaging Poly Bottle
Solubility Information Soluble in water
Health Hazard 1 Danger
Recommended Storage Room Temperature
Formula Weight 291.28
CAS Max % 0.07
Melting Point -115°C
1,729

Methyl Red Sodium Salt, ACS Grade, LabChem™

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

PubChem CID 4465632
CAS 845-10-3
Molecular Weight (g/mol) 291.286
SMILES CN(C)C1=CC=C(C=C1)N=NC2=CC=CC=C2C(=O)[O-].[Na+]
IUPAC Name sodium;2-[[4-(dimethylamino)phenyl]diazenyl]benzoate
InChI Key GNTPCYMJCJNRQB-UHFFFAOYSA-M
Molecular Formula C15H14N3NaO2
1,730

Phenol Red, 0.1%, Aqueous, Certified, LabChem™

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

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+]
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
1,731

Ferroin Oxidation-Reduction Indicator, Certified, LabChem™

Linear Formula FeSO4·7H2O
Color Red
Physical Form Liquid
Chemical Name or Material Ferroin Oxidation-Reduction Indicator
Grade Certified
Identification Passes Test
Density 1g/mL
CAS 7782-63-0
Health Hazard 3 GHS P Statement
If in contact with skin or eyes, rinse thoroughly with water for 15-20 minutes.
If swallowed, get medical attention.
Decomposition Information Nitrogen oxides; Carbon monoxide; Carbon dioxide; Sulfur compounds
Health Hazard 2 GHS H Statement
Solution is not hazardous.
Packaging Amber Glass
Solubility Information Soluble in water
Recommended Storage Room Temperature
Formula Weight 278.01
Specific Gravity 1g/mL
CAS Max % 0.7
Suitability Passes Test
1,732

Phenol Red, 0.04%, Aqueous, pH 6.8 to 8.4 Yellow to Red, Certified, LabChem™

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

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+]
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
1,733

Methyl Orange-Xylene Cyanol, pH 2.9 to 4.6 Lavender to Green, Certified, LabChem™

Linear Formula 4-NaOSO2C6H4N:NC6H4-4-N(CH3)2
Color Gray/Green
Physical Form Liquid
Chemical Name or Material Methyl Orange-Xylene Cyanol
Grade Certified
Identification Passes Test
Density 1g/mL
Name Note pH 2.9 to 4.6 Lavender to Green
CAS 547-58-0
Health Hazard 3 GHS P Statement
If in contact with skin or eyes, rinse thoroughly with water for 15-20 minutes.
If swallowed, get medical attention.
Decomposition Information Sulfur compounds; Carbon monoxide; Carbon dioxide
Health Hazard 2 GHS H Statement
Solution is not hazardous.
Packaging Poly Bottle
Solubility Information Soluble in water
Recommended Storage Room Temperature
Formula Weight 327.34
Specific Gravity 1g/mL
CAS Max % 0.1
1,734

Bromocresol Purple, 0.04% Aqueous, pH 5.3 to 6.8 Yellow to Purple, Certified, LabChem™
GSA_VA

CAS: 62625-30-3 Molecular Formula: C21H15Br2NaO5S Molecular Weight (g/mol): 562.204 InChI Key: KVSJYIXUWNOWBD-UGAWPWHASA-M PubChem CID: 23665568 IUPAC Name: sodium;2-[(E)-(3-bromo-4-hydroxy-5-methylphenyl)-(3-bromo-5-methyl-4-oxocyclohexa-2,5-dien-1-ylidene)methyl]benzenesulfonate SMILES: CC1=CC(=C(C2=CC=CC=C2S(=O)(=O)[O-])C3=CC(=C(C(=C3)Br)O)C)C=C(C1=O)Br.[Na+]

PubChem CID 23665568
CAS 62625-30-3
Molecular Weight (g/mol) 562.204
SMILES CC1=CC(=C(C2=CC=CC=C2S(=O)(=O)[O-])C3=CC(=C(C(=C3)Br)O)C)C=C(C1=O)Br.[Na+]
IUPAC Name sodium;2-[(E)-(3-bromo-4-hydroxy-5-methylphenyl)-(3-bromo-5-methyl-4-oxocyclohexa-2,5-dien-1-ylidene)methyl]benzenesulfonate
InChI Key KVSJYIXUWNOWBD-UGAWPWHASA-M
Molecular Formula C21H15Br2NaO5S
1,735

Fehlings Solution 'A', Copper No. 1, Certified, 6.93% (w/v) ±0.30%, LabChem™

Name Note Copper No. 1
Percent Purity 6.93% ±0.3% (w/v)
Linear Formula CuSO4·5H2O
CAS 7732-18-5
Health Hazard 3 GHS P Statement
Avoid release to the environment.
Collect spillage.
Dispose of contents/container to comply with local, state and federal regulations.
Health Hazard 2 GHS H Statement
Toxic to aquatic life with long lasting effects.
Physical Form Liquid
Grade Certified
Recommended Storage Room Temperature
Formula Weight 249.68
CAS Max % 6.93
1,736

Thymolphthalein, 0.05% in Ethanol, Certified, LabChem™

Linear Formula C28H30O4
Color Colorless to Blue
Physical Form Liquid
Chemical Name or Material Thymolphthalein
Grade Certified
Identification Passes Test
Name Note 0.05% in Ethanol
CAS 125-20-2
Health Hazard 3 GHS P Statement
Wear eye protection, protective gloves.
Wash exposed skin thoroughly after handling.
If on skin: Wash with plenty of soap and water.
Take off contaminated clothing.
If skin irritation occurs: Get medical advice/attention.
If in eyes: Rinse cautiously with water for several minutes.
Remove contact lenses, if present and easy to do.
Continue rinsing.
If eye irritation persists: Get medical advice/attention.
Decomposition Information Fume; Carbon monoxide; Carbon dioxide; May release flammable gases
Health Hazard 2 GHS H Statement
Highly flammable liquid and vapor.
Causes skin irritation.
Causes serious eye irritation.
May cause respiratory irritation.
Causes damage to organs (central nervous system, optic nerve) (oral).
pH 9.3 to 10.5
Packaging Poly Bottle
Solubility Information Soluble in water
Health Hazard 1 Danger
Recommended Storage Room Temperature
Formula Weight 430.5
CAS Max % 0.05
1,737

Alizarin Red S, 1% Aqueous, Certified, LabChem™
GSA_VA

CAS: 130-22-3 Molecular Formula: C14H7NaO7S Molecular Weight (g/mol): 342.253 InChI Key: HFVAFDPGUJEFBQ-UHFFFAOYSA-M PubChem CID: 3955344 ChEBI: CHEBI:87358 IUPAC Name: sodium;3,4-dihydroxy-9,10-dioxoanthracene-2-sulfonate SMILES: C1=CC=C2C(=C1)C(=O)C3=CC(=C(C(=C3C2=O)O)O)S(=O)(=O)[O-].[Na+]

PubChem CID 3955344
CAS 130-22-3
Molecular Weight (g/mol) 342.253
ChEBI CHEBI:87358
SMILES C1=CC=C2C(=C1)C(=O)C3=CC(=C(C(=C3C2=O)O)O)S(=O)(=O)[O-].[Na+]
IUPAC Name sodium;3,4-dihydroxy-9,10-dioxoanthracene-2-sulfonate
InChI Key HFVAFDPGUJEFBQ-UHFFFAOYSA-M
Molecular Formula C14H7NaO7S
1,738

Mopec™ Control Slides, Special Stains, Liver without Fungus (Periodic Acid Schiff)
SDP

All positive control slides are on Mopec™ IHC Enhanced Hydrophilic Adhesive Slides using Formalin Fixed Paraffin Embedded (FFPE) human tissue.

Product Type Control Slide
1,739

Mopec™ Control Slides, Special Stains, Periodic Acid Schiff with Digestion (PAS Diastase Stain (PAS-D))
SDP

All positive control slides are on Mopec™ IHC Enhanced Hydrophilic Adhesive Slides using Formalin Fixed Paraffin Embedded (FFPE) human tissue.

Product Type Control Slide
1,740

Mopec™ Control Slides, Special Stains, M. Leprae Bacteria
SDP

All positive control slides are on Mopec™ IHC Enhanced Hydrophilic Adhesive Slides using Formalin Fixed Paraffin Embedded (FFPE) human tissue.

Product Type Control Slide