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 (9,299)

Tissue Stain Blocking Reagents (81)

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1,786 – 1,800 of 7,251 results

1,786

Methylene Blue, Loeffler, Certified, LabChem™

Pricing & Availability

1,787

Bromothymol Blue-Phenol Red, Mixed Indicator, Certified, LabChem™

Pricing & Availability

1,788

Titanium Indicator Solution, Reagents

Titanium Indicator Solution, Reagent, for general laboratory use. Manufactured in ISO 9001 facility.

Pricing & Availability
Specifications

Boiling Point	100°C
CAS	7664-93-9
Color	Pink
Physical Form	Liquid
Packaging	Opaque HDPE
Chemical Name or Material	Titanium Indicator Solution
Grade	Reagent
Specific Gravity	1.13

1,789

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

Pricing & Availability
Specifications

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

1,790

MBTH Indicator, 0.05% Aqueous, for Cyanide, Certified, LabChem™

Pricing & Availability
Specifications

Linear Formula	C₈H₉N₃S·HCl
Color	Colorless to Brown
Physical Form	Liquid
Chemical Name or Material	MBTH Indicator
Grade	Certified
Identification	Passes Test
Density	1g/mL
Sensitivity	Passes Test
Name Note	0.05% Aqueous, for Cyanide
CAS	7732-18-5
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; Hydrogen chloride
Health Hazard 2	GHS H Statement Solution is not hazardous.
Packaging	Poly Bottle
Solubility Information	Soluble in water
Recommended Storage	Room Temperature
Formula Weight	215.7
Specific Gravity	1g/mL
CAS Max %	0.05

1,791

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+]

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+]
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

1,792

Xylenol Orange, 0.2% Alcoholic, Certified, LabChem™

Pricing & Availability
Specifications

Linear Formula	C₃₁H₂₈N₂Na₄O₁₃S
Color	Purple
Physical Form	Liquid
Chemical Name or Material	Xylenol Orange
Grade	Certified
Identification	Passes Test
Density	0.8g/mL
Name Note	0.2% Alcoholic
CAS	3618-43-7
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, hot surfaces, open flames, sparks. No smoking. Keep container tightly closed. Ground/bond container and receiving equipment. Use explosion-proof electrical, lighting, ventilating equipment. Use only non-sparking tools. Take precautionary measures against static discharge. Do not breathe mist, spray, vapors. Do not eat, drink or smoke when using this product. Wear eye protection, face protection, protective clothing, protective gloves. 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 carbon dioxide, powder, alcohol-resistant foam 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
Health Hazard 2	GHS H Statement Highly flammable liquid and vapor. Suspected of damaging of the unborn child. Causes damage to organs (central nervous system, optic nerve, liver, kidneys).
Packaging	Poly Bottle
Solubility Information	Soluble in water
Health Hazard 1	Danger
Recommended Storage	Room Temperature
Formula Weight	760.59
Specific Gravity	0.8g/mL
CAS Max %	0.2
Suitability	Passes Test

1,793

Thymolphthalein, 0.05% in Ethanol, Certified, LabChem™

Pricing & Availability
Specifications

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

1,794

Phenolphthalein TS, Reagents

CAS: 64-17-5 Molecular Formula: C2H6O Molecular Weight (g/mol): 46.07 InChI Key: LFQSCWFLJHTTHZ-UHFFFAOYSA-N Synonym: 3,3-Bis(4-hydroxyphenyl)isobenzofuran-1(3H)-one IUPAC Name: ethanol SMILES: CCO

Pricing & Availability
Specifications

CAS	64-17-5
Molecular Weight (g/mol)	46.07
SMILES	CCO
Synonym	3,3-Bis(4-hydroxyphenyl)isobenzofuran-1(3H)-one
IUPAC Name	ethanol
InChI Key	LFQSCWFLJHTTHZ-UHFFFAOYSA-N
Molecular Formula	C2H6O

1,795

Murexide Indicator, 0.15% in Ethylene Glycol, for Calcium, Certified, LabChem™

CAS: 107-21-1 Molecular Formula: C2H6O2 Molecular Weight (g/mol): 62.068 InChI Key: LYCAIKOWRPUZTN-UHFFFAOYSA-N PubChem CID: 174 ChEBI: CHEBI:30742 IUPAC Name: ethane-1,2-diol SMILES: C(CO)O

Pricing & Availability
Specifications

PubChem CID	174
CAS	107-21-1
Molecular Weight (g/mol)	62.068
ChEBI	CHEBI:30742
SMILES	C(CO)O
IUPAC Name	ethane-1,2-diol
InChI Key	LYCAIKOWRPUZTN-UHFFFAOYSA-N
Molecular Formula	C2H6O2

1,796

Methyl Red Indicator, 0.1% w/v in Ethanol, Reagents

Methyl Red Indicator, 0.1% w/v in Ethanol, Reagent, for general laboratory use. Manufactured in ISO 9001 facility.

Pricing & Availability
Specifications

Boiling Point	77°C
Percent Purity	0.10%
CAS	7732-18-5
Color	Red
Physical Form	Liquid
Chemical Name or Material	Methyl Red Indicator, 0.1% w/v in Ethanol
Grade	Reagent
Synonym	Acid Red 2, 2-[[4-(Dimethylamino)phenyl]diazenyl]benzoic Acid
Specific Gravity	0.8

1,797

Azer Scientific Eosin-Y Phloxine-B, iCON™ Staining System

Producing crisp and well-defined detail is our proprietary family of pH-balanced

Pricing & Availability
Specifications

For Use With (Application)	Automatic Stainers

1,798

Starch Indicator, Preserved with Chloroform (Mercury Free), Certified, 0.5%, LabChem™

Pricing & Availability
Specifications

Physical Form	Liquid
Chemical Name or Material	Starch Indicator
Grade	Certified
Identification	Passes Test
Density	1g/mL
Name Note	Preserved with Chloroform (Mercury Free)
Percent Purity	0.5%
CAS	64-17-5
Health Hazard 3	GHS P Statement Obtain special instructions before use. Do not handle until all safety precautions have been read and understood. Wear protective gloves/eye protection/face protection. If exposed or concerned: Get medical attention. Store locked up. Dispose of contents/container in accordance with local, state and federal regulations.
Decomposition Information	Hydrogen chloride; Carbon monoxide; Carbon dioxide
Health Hazard 2	GHS H Statement Suspected of causing cancer (Inhalation).
Packaging	Poly Bottle
Solubility Information	Soluble in water
Health Hazard 1	Warning
Recommended Storage	Room Temperature
Specific Gravity	1g/mL
CAS Max %	0.005
Suitability	Passes Test

1,799

Murexide (Ammonium Purpurate), Reagents

CAS: 3051-09-0 Molecular Formula: C8H8N6O6 Molecular Weight (g/mol): 284.19 InChI Key: PCCZWUCAYILEMX-UHFFFAOYSA-O Synonym: Ammonium Purpurate, Color Index 56085 IUPAC Name: ammonium 2,4,6-trioxo-5-[(2,4,6-trioxo-1,3-diazinan-5-ylidene)amino]-1,3-diazinan-5-ide SMILES: [NH4+].O=C1NC(=O)[C-](N=C2C(=O)NC(=O)NC2=O)C(=O)N1

Pricing & Availability
Specifications

CAS	3051-09-0
Molecular Weight (g/mol)	284.19
SMILES	[NH4+].O=C1NC(=O)[C-](N=C2C(=O)NC(=O)NC2=O)C(=O)N1
Synonym	Ammonium Purpurate, Color Index 56085
IUPAC Name	ammonium 2,4,6-trioxo-5-[(2,4,6-trioxo-1,3-diazinan-5-ylidene)amino]-1,3-diazinan-5-ide
InChI Key	PCCZWUCAYILEMX-UHFFFAOYSA-O
Molecular Formula	C8H8N6O6

1,800

Eriochrome Black T Indicator, 0.5% w/v in 2-Methoxyethanol, Reagents

Eriochrome Black T Indicator, 0.5% w/v in 2-Methoxyethanol, Reagent, for general laboratory use. Manufactured in ISO 9001 facility.

Pricing & Availability
Specifications

Boiling Point	123°C
Percent Purity	0.5%
CAS	1787-61-7
Physical Form	Liquid
Packaging	Glass Bottle
Chemical Name or Material	Eriochrome Black T Indicator, 0.5% w/v in 2-Methoxyethanol
Grade	Reagent
Synonym	Water hardness indicator
Specific Gravity	0.97

Staining Reagents

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Phenolphthalein, 0.5% In 50% Ethanol, pH 8.3 to 10.0 Colorless to Pink, Certified, LabChem™ GSA/VA ContractAvailable on GSA/VA contract for Federal Government customers.Learn More

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