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 (9,151)

Tissue Stain Blocking Reagents (82)

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1,861 – 1,875 of 7,073 results

1,861

Modified Methyl Orange Indicator, 0.1% Methyl Orange-Xylene Cyanole, Reagents

Modified Methyl Orange Indicator, 0.1% Methyl Orange-Xylene Cyanole, Reagent, for general laboratory use. Manufactured in ISO 9001 facility.

Pricing & Availability
Specifications

Boiling Point	100°C
Percent Purity	0.1%
CAS	2650-17-1
Color	Blue to Green
Physical Form	Liquid
Packaging	Poly Bottle
Chemical Name or Material	Modified Methyl Orange Indicator, 0.1% Methyl Orange-Xylene Cyanole
Grade	Reagent
Synonym	Methyl Orange-Xylene Cyanole
Specific Gravity	1.001

1,862

Gentian Violet, 2% Methanolic, Certified, LabChem™

CAS: 548-62-9 Molecular Formula: C25H30ClN3 Molecular Weight (g/mol): 407.986 InChI Key: ZXJXZNDDNMQXFV-UHFFFAOYSA-M PubChem CID: 11057 ChEBI: CHEBI:41688 IUPAC Name: [4-[bis[4-(dimethylamino)phenyl]methylidene]cyclohexa-2,5-dien-1-ylidene]-dimethylazanium;chloride SMILES: CN(C)C1=CC=C(C=C1)C(=C2C=CC(=[N+](C)C)C=C2)C3=CC=C(C=C3)N(C)C.[Cl-]

Pricing & Availability
Specifications

PubChem CID	11057
CAS	548-62-9
Molecular Weight (g/mol)	407.986
ChEBI	CHEBI:41688
SMILES	CN(C)C1=CC=C(C=C1)C(=C2C=CC(=[N+](C)C)C=C2)C3=CC=C(C=C3)N(C)C.[Cl-]
IUPAC Name	[4-[bis[4-(dimethylamino)phenyl]methylidene]cyclohexa-2,5-dien-1-ylidene]-dimethylazanium;chloride
InChI Key	ZXJXZNDDNMQXFV-UHFFFAOYSA-M
Molecular Formula	C25H30ClN3

1,863

Phenol Red, ACS Reagent (Phenolsulfonphthalein), Reagents

CAS: 143-74-8 Molecular Formula: C19H14O5S Molecular Weight (g/mol): 354.38 InChI Key: BELBBZDIHDAJOR-UHFFFAOYSA-N Synonym: Phenolsulfonphthalein IUPAC Name: 3,3-bis(4-hydroxyphenyl)-3H-2,1λ⁶-benzoxathiole-1,1-dione SMILES: OC1=CC=C(C=C1)C1(OS(=O)(=O)C2=CC=CC=C12)C1=CC=C(O)C=C1

Pricing & Availability
Specifications

CAS	143-74-8
Molecular Weight (g/mol)	354.38
SMILES	OC1=CC=C(C=C1)C1(OS(=O)(=O)C2=CC=CC=C12)C1=CC=C(O)C=C1
Synonym	Phenolsulfonphthalein
IUPAC Name	3,3-bis(4-hydroxyphenyl)-3H-2,1λ⁶-benzoxathiole-1,1-dione
InChI Key	BELBBZDIHDAJOR-UHFFFAOYSA-N
Molecular Formula	C19H14O5S

1,864

Eriochrome Black T Indicator in 40% Ethanol/60% Triethanolamine, Reagents

Eriochrome Black T Indicator in 40% Ethanol/60% Triethanolamine, Reagent, for general laboratory use. Manufactured in ISO 9001 facility.

Pricing & Availability
Specifications

Percent Purity	0.8%
CAS	67-63-0
Color	Dark Blue
Physical Form	Liquid
Packaging	Glass Bottle
Chemical Name or Material	Eriochrome Black T Indicator in 40% Ethanol/60% Triethanolamine
Grade	Reagent
Synonym	Water hardness indicator
Specific Gravity	0.9982

1,865

Thymolphthalein Indicator, 0.05% w/v in 90% v/v Alcohol, Reagents

Thymolphthalein Indicator, 0.05% w/v in 90% v/v Alcohol, Reagent, for general laboratory use. Manufactured in ISO 9001 facility.

Pricing & Availability
Specifications

Boiling Point	78°C
Percent Purity	0.05%
CAS	67-56-1
Color	Colorless
Physical Form	Liquid
Packaging	Poly Bottle
Chemical Name or Material	Thymolphthalein Indicator, 0.05% w/v in 90% v/v Alcohol
Grade	Reagent
Synonym	5',5''-Diisopropyl-2',2''-dimethylphenolphthalein
Specific Gravity	0.83

1,866

Reagents Holdings Llc Acid Starch Indicator, Reagents

Acid Starch Indicator, Reagent, for general laboratory use. Manufactured in ISO 9001 facility.

Pricing & Availability

1,867

Indicator A, Reagents

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

Pricing & Availability
Specifications

Boiling Point	100°C
CAS	3625-57-8
Color	Blue
Physical Form	Liquid
Chemical Name or Material	Indicator A
Grade	Reagent
Synonym	Nile blue sulfate
Specific Gravity	1.001

1,868

Reagents Holdings Llc 11-13 Indicator 4-(4-Nitrophenylazo)resorcinol, 0.02% in 20% IPA, Reagents

11-13 Indicator 4-(4-Nitrophenylazo)resorcinol, 0.02% in 20% IPA, Reagent, for general laboratory use. Manufactured in ISO 9001 facility.

Pricing & Availability

1,869

Methyl Red, 0.02% in Methanol, pH 4.2 to 6.3 Pink to Yellow, Certified, LabChem™

Pricing & Availability
Specifications

Linear Formula	C₁₅H₁₄N₃O₂Na
Molecular Weight (g/mol)	32.04
Identification	Passes Test
InChI Key	OKKJLVBELUTLKV-UHFFFAOYSA-N
Density	0.79g/mL
Name Note	0.02% in Methanol, pH 4.2 to 6.3 Pink to Yellow
Formula Weight	291.28
CAS Max %	0.02
Melting Point	-98°C
Boiling Point	65°C
Color	Orange
Physical Form	Liquid
Chemical Name or Material	Methyl Red
Grade	Certified
SMILES	CO
CAS	845-10-3
Health Hazard 3	GHS P Statement 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. Use only outdoors or in a well-ventilated area. Do not eat, drink or smoke when using this product. Wear protective gloves, eye protection, face protection, protective clothing. Wash exposed skin thoroughly after handling. If swallowed: Rinse mouth. Immediately call a poison center/doctor. If on skin (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. Call a poison center/doctor. Wash contaminated clothing before reuse. If inhaled: Remove person to fresh air and keep comfortable for breathing. Call a poison center/doctor. 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
MDL Number	MFCD00004595
Health Hazard 2	GHS H Statement Highly flammable liquid and vapor. Toxic if swallowed, in contact with skin or if inhaled. Causes damage to organs (central nervous system, kidneys, liver, optic nerve).
Flash Point	9.7°C
Packaging	Poly Bottle
Solubility Information	Soluble in water
Health Hazard 1	Danger
Recommended Storage	Room Temperature
IUPAC Name	methanol
Molecular Formula	CH4O
Specific Gravity	0.79g/mL

1,870

Reagents Holdings Llc Starch Indicator, 0.5% w/v with Chloroform preservative, Reagents

Starch Indicator, 0.5% w/v with Chloroform preservative, Reagent, for general laboratory use. Manufactured in ISO 9001 facility.

Pricing & Availability

1,871

Methyl Orange, Sodium Salt Grade, ACS Grade, LabChem™

CAS: 547-58-0 Molecular Formula: C14H14N3NaO3S Molecular Weight (g/mol): 327.334 InChI Key: STZCRXQWRGQSJD-UHFFFAOYSA-M 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+]

Pricing & Availability
Specifications

PubChem CID	23673835
CAS	547-58-0
Molecular Weight (g/mol)	327.334
SMILES	CN(C)C1=CC=C(C=C1)N=NC2=CC=C(C=C2)S(=O)(=O)[O-].[Na+]
IUPAC Name	sodium;4-[[4-(dimethylamino)phenyl]diazenyl]benzenesulfonate
InChI Key	STZCRXQWRGQSJD-UHFFFAOYSA-M
Molecular Formula	C14H14N3NaO3S

1,872

Reagents Holdings Llc Murexide-Sodium Chloride Water Hardness Indicator, Reagents

Murexide-Sodium Chloride Water Hardness Indicator, ACS, for general laboratory use. Manufactured in ISO 9001 facility.

Pricing & Availability

1,873

Reagents Holdings Llc Phenolphthalein, 0.0074% w/v in IPA, Reagents

CAS: 67-63-0 Molecular Formula: C3H8O Molecular Weight (g/mol): 60.10 InChI Key: KFZMGEQAYNKOFK-UHFFFAOYSA-N Synonym: 3,3-Bis(4-hydroxyphenyl)isobenzofuran-1(3H)-one IUPAC Name: propan-2-ol SMILES: CC(C)O

Pricing & Availability
Specifications

CAS	67-63-0
Molecular Weight (g/mol)	60.10
SMILES	CC(C)O
Synonym	3,3-Bis(4-hydroxyphenyl)isobenzofuran-1(3H)-one
IUPAC Name	propan-2-ol
InChI Key	KFZMGEQAYNKOFK-UHFFFAOYSA-N
Molecular Formula	C3H8O

1,874

Reagents Holdings Llc Bromophenol Blue, 0.5% (w/w) in IPA, Reagents

Bromophenol Blue, 0.5% (w/w) in IPA, Reagent, for general laboratory use. Manufactured in ISO 9001 facility.

Pricing & Availability

1,875

Bromocresol Green, 0.04% (w/v) Aqueous, pH 3.8 to 5.4 Yellow to Blue, Certified, LabChem™

CAS: 62625-32-5

Pricing & Availability
Specifications

CAS	62625-32-5

Staining Reagents

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