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 (9,271)

Tissue Stain Blocking Reagents (82)

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1,801 – 1,815 of 7,208 results

1,801

Congo Red Indicator, 0.1% Aqueous, Reagents

Congo Red Indicator, 0.1% Aqueous, Reagent, for general laboratory use. Manufactured in ISO 9001 facility.

Pricing & Availability
Specifications

Boiling Point	100°C
Percent Purity	0.1%
CAS	573-58-0
Color	Red
Physical Form	Liquid
Packaging	Glass Bottle
Chemical Name or Material	Congo Red Indicator, 0.1% Aqueous
Grade	Reagent
Synonym	Direct Red 28
Specific Gravity	1.0008

1,802

Xylenol Orange, 0.1%, Aqueous, Reagents

CAS: 7732-18-5 Molecular Formula: H2O Molecular Weight (g/mol): 18.02 InChI Key: XLYOFNOQVPJJNP-UHFFFAOYSA-N IUPAC Name: water SMILES: O

Pricing & Availability
Specifications

CAS	7732-18-5
Molecular Weight (g/mol)	18.02
SMILES	O
IUPAC Name	water
InChI Key	XLYOFNOQVPJJNP-UHFFFAOYSA-N
Molecular Formula	H2O

1,803

Indicator VB, Reagents

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

Pricing & Availability
Specifications

CAS	67-63-0
Color	Dark Blue
Physical Form	Liquid
Packaging	Glass Bottle
Chemical Name or Material	Indicator VB
Grade	Reagent
Synonym	Victoria Blue
Specific Gravity	0.8

1,804

Eriochrome Black T, ACS Reagent (EBT; Mordant Black 11), Reagents

CAS: 1787-61-7 Molecular Formula: C20H12N3NaO7S Molecular Weight (g/mol): 461.38 InChI Key: JHUJLRKQZAPSDP-GXTSIBQPSA-M Synonym: Water hardness indicator 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

CAS	1787-61-7
Molecular Weight (g/mol)	461.38
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
Synonym	Water hardness indicator
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

1,805

Bromocresol Purple, ACS Reagent (Sultone) not water soluble, Reagents

CAS: 115-40-2 Molecular Formula: C21H16Br2O5S Molecular Weight (g/mol): 540.22 InChI Key: ABIUHPWEYMSGSR-UHFFFAOYSA-N Synonym: Bromcresol purple IUPAC Name: 3,3-bis(3-bromo-4-hydroxy-5-methylphenyl)-3H-2,1λ⁶-benzoxathiole-1,1-dione SMILES: CC1=CC(=CC(Br)=C1O)C1(OS(=O)(=O)C2=CC=CC=C12)C1=CC(C)=C(O)C(Br)=C1

Pricing & Availability
Specifications

CAS	115-40-2
Molecular Weight (g/mol)	540.22
SMILES	CC1=CC(=CC(Br)=C1O)C1(OS(=O)(=O)C2=CC=CC=C12)C1=CC(C)=C(O)C(Br)=C1
Synonym	Bromcresol purple
IUPAC Name	3,3-bis(3-bromo-4-hydroxy-5-methylphenyl)-3H-2,1λ⁶-benzoxathiole-1,1-dione
InChI Key	ABIUHPWEYMSGSR-UHFFFAOYSA-N
Molecular Formula	C21H16Br2O5S

1,806

Indigo Carmine (Acid Blue 74), Reagents

Indigo Carmine (Acid Blue 74), Reagent, for general laboratory use. Manufactured in ISO 9001 facility.

Pricing & Availability
Specifications

Boiling Point	300°C
CAS	860-22-0
Molecular Weight (g/mol)	466.3529
Color	Blue
Physical Form	Solid
Packaging	Glass Bottle
Chemical Name or Material	Indigo Carmine (Acid Blue 74)
Grade	Reagent
Synonym	FD and C Blue 2
Molecular Formula	C16H8N2Na2O8S2
Specific Gravity	1.01

1,807

Carbol Fuchsin, 0.1% w/v Solution, Reagents

Carbol Fuchsin, 0.1% w/v Solution, Reagent, for general laboratory use. Manufactured in ISO 9001 facility.

Pricing & Availability

1,808

Ferric Alum Indicator, Volhard, Reagents

Ferric Alum Indicator, Volhard, Reagent, for general laboratory use. Manufactured in ISO 9001 facility.

Pricing & Availability
Specifications

Boiling Point	102°C
CAS	7697-37-2
Color	Amber
Physical Form	Liquid
pH	<1
Packaging	Poly Bottle
Chemical Name or Material	Ferric Alum Indicator, Volhard
Grade	Reagent
Specific Gravity	1.08

1,809

Hydroxy Naphthol Blue, ACS Reagent, Reagents

Hydroxy Naphthol Blue, ACS Reagent, ACS, for general laboratory use. Manufactured in ISO 9001 facility.

Pricing & Availability
Specifications

Boiling Point	1413°C
CAS	165660-27-5
Molecular Weight (g/mol)	620.47
Color	Dark Blue
Physical Form	Solid
Packaging	Glass Bottle
Chemical Name or Material	Hydroxy Naphthol Blue, ACS Reagent
Grade	ACS
Synonym	1-(2-Naphtholazo-3,6-disulfonic Acid)-2-naphthol-4-sulfonic Acid Disodium Salt
Molecular Formula	C20H12N2Na2O11S3
Specific Gravity	2.17

1,810

Bromocresol Green, ACS Reagent (Sultone) not water soluble, Reagents

CAS: 76-60-8 Molecular Formula: C21H14Br4O5S Molecular Weight (g/mol): 698.01 InChI Key: FRPHFZCDPYBUAU-UHFFFAOYSA-N Synonym: Bromocresol blue, Bromcresol Green, Bromcresol Blue IUPAC Name: 3,3-bis(3,5-dibromo-4-hydroxy-2-methylphenyl)-3H-2,1λ⁶-benzoxathiole-1,1-dione SMILES: CC1=C(Br)C(O)=C(Br)C=C1C1(OS(=O)(=O)C2=CC=CC=C12)C1=CC(Br)=C(O)C(Br)=C1C

Pricing & Availability
Specifications

CAS	76-60-8
Molecular Weight (g/mol)	698.01
SMILES	CC1=C(Br)C(O)=C(Br)C=C1C1(OS(=O)(=O)C2=CC=CC=C12)C1=CC(Br)=C(O)C(Br)=C1C
Synonym	Bromocresol blue, Bromcresol Green, Bromcresol Blue
IUPAC Name	3,3-bis(3,5-dibromo-4-hydroxy-2-methylphenyl)-3H-2,1λ⁶-benzoxathiole-1,1-dione
InChI Key	FRPHFZCDPYBUAU-UHFFFAOYSA-N
Molecular Formula	C21H14Br4O5S

1,811

Phenolphthalein, 1% in 70% Alcohol, Neutralized, 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

1,812

Sulfo Orange Indicator, 0.04% w/v, Reagents

Sulfo Orange Indicator, 0.04% w/v, Reagent, for general laboratory use. Manufactured in ISO 9001 facility.

Pricing & Availability
Specifications

Boiling Point	100°C
Percent Purity	0.04%
CAS	547-57-9
Color	Orange/Red
Physical Form	Liquid
Packaging	Glass Bottle
Chemical Name or Material	Sulfo Orange Indicator, 0.04% w/v
Grade	Reagent
Synonym	Tropaeolin O, Acid Orange 6, Resorcinol Yellow, Tropaeoline
Specific Gravity	1.001

1,813

Phenolphthalein, 1% w/v in Isopropanol, 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

1,814

Xylenol Orange Indicator Mix, Reagents

Xylenol Orange Indicator Mix, Reagent, for general laboratory use. Manufactured in ISO 9001 facility.

Pricing & Availability
Specifications

Boiling Point	1461°C
Percent Purity	0.1%
CAS	3618-43-7
Color	Orange/Red
Physical Form	Solid
Chemical Name or Material	Xylenol Orange Indicator Mix
Grade	Reagent
Molecular Formula	C31H28N2Na4O13S/H2O
Specific Gravity	2.1

1,815

Dichlorofluorescein, 0.2% In 70% Isopropanol, Reagents

CAS: 67-63-0 Molecular Formula: C3H8O Molecular Weight (g/mol): 60.10 InChI Key: KFZMGEQAYNKOFK-UHFFFAOYSA-N Synonym: 2',7'-Dichloro-3,6-fluorandiol, 2,7-Dichlorofluorescein, 2',7'-dichloro-3',6'-dihydroxyspiro[2-benzofuran-3,9'-xanthene]-1-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	2',7'-Dichloro-3,6-fluorandiol, 2,7-Dichlorofluorescein, 2',7'-dichloro-3',6'-dihydroxyspiro[2-benzofuran-3,9'-xanthene]-1-one
IUPAC Name	propan-2-ol
InChI Key	KFZMGEQAYNKOFK-UHFFFAOYSA-N
Molecular Formula	C3H8O

Staining Reagents

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