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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1,921 – 1,935 of 7,076 results

1,921

Reagents Holdings Llc 0.15% KI, 0.076% Iodine, 1.2% Boric Acid, Aqueous Solution, Reagents

0.15% KI, 0.076% Iodine, 1.2% Boric Acid, Aqueous Solution, Reagent, for general laboratory use. Manufactured in ISO 9001 facility.

Pricing & Availability

1,922

Phenolphthalein, 0.5% w/v in 50% Isopropanol, Reagents

CAS: 7732-18-5 Molecular Formula: H2O Molecular Weight (g/mol): 18.02 InChI Key: XLYOFNOQVPJJNP-UHFFFAOYSA-N Synonym: 3,3-Bis(4-hydroxyphenyl)isobenzofuran-1(3H)-one IUPAC Name: water SMILES: O

Pricing & Availability
Specifications

CAS	7732-18-5
Molecular Weight (g/mol)	18.02
SMILES	O
Synonym	3,3-Bis(4-hydroxyphenyl)isobenzofuran-1(3H)-one
IUPAC Name	water
InChI Key	XLYOFNOQVPJJNP-UHFFFAOYSA-N
Molecular Formula	H2O

1,923

Phenolphthalein, 0.5% w/v in 50% Alcohol, Reagents

CAS: 7732-18-5 Molecular Formula: H2O Molecular Weight (g/mol): 18.02 InChI Key: XLYOFNOQVPJJNP-UHFFFAOYSA-N Synonym: 3,3-Bis(4-hydroxyphenyl)isobenzofuran-1(3H)-one IUPAC Name: water SMILES: O

Pricing & Availability
Specifications

CAS	7732-18-5
Molecular Weight (g/mol)	18.02
SMILES	O
Synonym	3,3-Bis(4-hydroxyphenyl)isobenzofuran-1(3H)-one
IUPAC Name	water
InChI Key	XLYOFNOQVPJJNP-UHFFFAOYSA-N
Molecular Formula	H2O

1,924

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

1,925

LabChem, Inc. Gentian Violet, Reagent Grade, 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

1,926

Thymol Blue, 0.04% Aqueous, pH 1.2 to 2.8 Red to Yellow, pH 8.0 to 9.6 Yellow to Blue, Certified, LabChem™

CAS: 62625-21-2 Molecular Formula: C27H29NaO5S Molecular Weight (g/mol): 488.57 MDL Number: MFCD00151093 InChI Key: OCMIKNBSIRSUPI-FRWNMSGJSA-M PubChem CID: 23692293 IUPAC Name: sodium 2-{[4-hydroxy-2-methyl-5-(propan-2-yl)phenyl][(1E)-2-methyl-4-oxo-5-(propan-2-yl)cyclohexa-2,5-dien-1-ylidene]methyl}benzene-1-sulfonate SMILES: [Na+].CC(C)C1=C\C(=C(\C2=CC(C(C)C)=C(O)C=C2C)C2=C(C=CC=C2)S([O-])(=O)=O)C(C)=CC1=O

Pricing & Availability
Specifications

PubChem CID	23692293
CAS	62625-21-2
Molecular Weight (g/mol)	488.57
MDL Number	MFCD00151093
SMILES	[Na+].CC(C)C1=C\C(=C(\C2=CC(C(C)C)=C(O)C=C2C)C2=C(C=CC=C2)S([O-])(=O)=O)C(C)=CC1=O
IUPAC Name	sodium 2-{[4-hydroxy-2-methyl-5-(propan-2-yl)phenyl][(1E)-2-methyl-4-oxo-5-(propan-2-yl)cyclohexa-2,5-dien-1-ylidene]methyl}benzene-1-sulfonate
InChI Key	OCMIKNBSIRSUPI-FRWNMSGJSA-M
Molecular Formula	C27H29NaO5S

1,927

Arsenazo III Indicator, Certified, LabChem™

CAS: 1668-00-4 Molecular Formula: C22H18As2N4O14S2 Molecular Weight (g/mol): 776.363 InChI Key: TVMZRHVOFZTNET-RIRMOVKSSA-N PubChem CID: 9810878 IUPAC Name: (3Z,6E)-3,6-bis[(2-arsonophenyl)hydrazinylidene]-4,5-dioxonaphthalene-2,7-disulfonic acid SMILES: C1=CC=C(C(=C1)NN=C2C(=CC3=C(C2=O)C(=O)C(=NNC4=CC=CC=C4[As](=O)(O)O)C(=C3)S(=O)(=O)O)S(=O)(=O)O)[As](=O)(O)O

Pricing & Availability
Specifications

PubChem CID	9810878
CAS	1668-00-4
Molecular Weight (g/mol)	776.363
SMILES	C1=CC=C(C(=C1)NN=C2C(=CC3=C(C2=O)C(=O)C(=NNC4=CC=CC=C4[As](=O)(O)O)C(=C3)S(=O)(=O)O)S(=O)(=O)O)[As](=O)(O)O
IUPAC Name	(3Z,6E)-3,6-bis[(2-arsonophenyl)hydrazinylidene]-4,5-dioxonaphthalene-2,7-disulfonic acid
InChI Key	TVMZRHVOFZTNET-RIRMOVKSSA-N
Molecular Formula	C22H18As2N4O14S2

1,928

LabChem, Inc. Crystal Violet, 1% (w/v) in Glacial Acetic Acid, for Non-Aqueous Titrations, Certified, LabChem™

CAS: 64-19-7 Molecular Formula: C2H4O2 Molecular Weight (g/mol): 60.05 MDL Number: MFCD00036152 InChI Key: QTBSBXVTEAMEQO-UHFFFAOYSA-N PubChem CID: 176 ChEBI: CHEBI:15366 IUPAC Name: acetic acid SMILES: CC(O)=O

Pricing & Availability
Specifications

PubChem CID	176
CAS	64-19-7
Molecular Weight (g/mol)	60.05
ChEBI	CHEBI:15366
MDL Number	MFCD00036152
SMILES	CC(O)=O
IUPAC Name	acetic acid
InChI Key	QTBSBXVTEAMEQO-UHFFFAOYSA-N
Molecular Formula	C2H4O2

1,929

Cresol Red Sodium Salt, Reagent Grade, LabChem™

CAS: 62625-29-0

Pricing & Availability
Specifications

CAS	62625-29-0

1,930

Gentian Violet, 2% Methanolic, Certified, LabChem™

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

1,931

Reagents Holdings Llc Chrome Azurol S (Mordant Blue 29, CI 43825), Reagents

Chrome Azurol S (Mordant Blue 29, CI 43825), Reagent, for general laboratory use. Manufactured in ISO 9001 facility.

Pricing & Availability

1,932

1% Phenolphthalein in 50% Isopropanol Indicator 5, Reagents

1% Phenolphthalein in 50% Isopropanol Indicator 5, Reagent, for general laboratory use. Manufactured in ISO 9001 facility.

Pricing & Availability
Specifications

Boiling Point	82°C
Percent Purity	1%
CAS	67-63-0
Color	Colorless
Physical Form	Liquid
pH	<8
Packaging	Poly Bottle
Chemical Name or Material	1% Phenolphthalein in 50% Isopropanol Indicator 5
Grade	Reagent
Synonym	3,3-Bis(4-hydroxyphenyl)isobenzofuran-1(3H)-one
Molecular Formula	C20H14O4/C3H7OH/H2O
Specific Gravity	0.9

1,933

Eriochrome™ Black T, ACS Grade, LabChem™

CAS: 1787-61-7 Molecular Formula: C20H12N3NaO7S Molecular Weight (g/mol): 461.38 MDL Number: MFCD00003935 InChI Key: JHUJLRKQZAPSDP-GXTSIBQPSA-M PubChem CID: 87355429 IUPAC Name: sodium (4Z)-4-[2-(1-hydroxynaphthalen-2-yl)hydrazin-1-ylidene]-7-nitro-3-oxo-3,4-dihydronaphthalene-1-sulfonate SMILES: [Na+].OC1=C2C=CC=CC2=CC=C1N\N=C1/C(=O)C=C(C2=CC(=CC=C12)[N+]([O-])=O)S([O-])(=O)=O

Pricing & Availability
Specifications

PubChem CID	87355429
CAS	1787-61-7
Molecular Weight (g/mol)	461.38
MDL Number	MFCD00003935
SMILES	[Na+].OC1=C2C=CC=CC2=CC=C1N\N=C1/C(=O)C=C(C2=CC(=CC=C12)[N+]([O-])=O)S([O-])(=O)=O
IUPAC Name	sodium (4Z)-4-[2-(1-hydroxynaphthalen-2-yl)hydrazin-1-ylidene]-7-nitro-3-oxo-3,4-dihydronaphthalene-1-sulfonate
InChI Key	JHUJLRKQZAPSDP-GXTSIBQPSA-M
Molecular Formula	C20H12N3NaO7S

1,934

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

1,935

Bromophenol Blue, 0.1% w/v in denatured Ethanol, Reagents

Bromophenol Blue, 0.1% w/v in denatured Ethanol, Reagent, for general laboratory use. Manufactured in ISO 9001 facility.

Pricing & Availability
Specifications

Boiling Point	72°C
Percent Purity	0.1%
CAS	67-63-0
Color	Orange/Red
Physical Form	Liquid
Packaging	Poly Bottle
Chemical Name or Material	Bromophenol Blue, 0.1% w/v in denatured Ethanol
Grade	Reagent
Synonym	3',3'',5',5''-Tetrabromosulfonphthalein, Tetrabromophenol blue, Bromphenol blue
Specific Gravity	0.8

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™