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 (9,139)

Tissue Stain Blocking Reagents (82)

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1,126 – 1,140 of 7,060 results

1,126

Thermo Scientific Chemicals Pyronin Y, pure, high purity biological stain

CAS: 92-32-0 Molecular Formula: C17H19ClN2O Molecular Weight (g/mol): 302.802 MDL Number: MFCD00011725 InChI Key: INCIMLINXXICKS-UHFFFAOYSA-M Synonym: C.I. 45005,Pyronin G PubChem CID: 7085 ChEBI: CHEBI:87347 IUPAC Name: [6-(dimethylamino)xanthen-3-ylidene]-dimethylazanium;chloride SMILES: CN(C)C1=CC2=C(C=C1)C=C3C=CC(=[N+](C)C)C=C3O2.[Cl-]

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Specifications

PubChem CID	7085
CAS	92-32-0
Molecular Weight (g/mol)	302.802
ChEBI	CHEBI:87347
MDL Number	MFCD00011725
SMILES	CN(C)C1=CC2=C(C=C1)C=C3C=CC(=[N+](C)C)C=C3O2.[Cl-]
Synonym	C.I. 45005,Pyronin G
IUPAC Name	[6-(dimethylamino)xanthen-3-ylidene]-dimethylazanium;chloride
InChI Key	INCIMLINXXICKS-UHFFFAOYSA-M
Molecular Formula	C17H19ClN2O

1,127

Novus Biologicals™ Nuclear Fast Red Counterstain

an excellent choice in multiple labeling applications when hematoxylin obscures the substrate colors.

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1,128

Novus Biologicals™ Alcian Blue (pH 2.5) Stain Kit

Intended for use in the histological visualization of sulfated and carboxylated acid mucopolysaccharides and sulfated and carboxylated sialomucins (glycoproteins).intended for use in the histological visualization of sulfated and carboxylated acid mucopolysaccharides and sulfated and carboxylated sialomucins (glycoproteins).

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1,129

Evans Blue 80.0+%, TCI America™

CAS: 314-13-6 Molecular Formula: C34H24N6Na4O14S4 Molecular Weight (g/mol): 960.79 MDL Number: MFCD00004021 InChI Key: KBNIFDASRCWYGC-GXNXWABVSA-J PubChem CID: 24832074 IUPAC Name: tetrasodium (6E)-4-amino-6-[2-(4'-{2-[(2E)-8-amino-1-oxo-5,7-disulfonato-1,2-dihydronaphthalen-2-ylidene]hydrazin-1-yl}-3,3'-dimethyl-[1,1'-biphenyl]-4-yl)hydrazin-1-ylidene]-5-oxo-5,6-dihydronaphthalene-1,3-disulfonate SMILES: [Na+].[Na+].[Na+].[Na+].CC1=CC(=CC=C1N\N=C1/C=CC2=C(C=C(C(N)=C2C1=O)S([O-])(=O)=O)S([O-])(=O)=O)C1=CC=C(N\N=C2/C=CC3=C(C=C(C(N)=C3C2=O)S([O-])(=O)=O)S([O-])(=O)=O)C(C)=C1

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Specifications

PubChem CID	24832074
CAS	314-13-6
Molecular Weight (g/mol)	960.79
MDL Number	MFCD00004021
SMILES	[Na+].[Na+].[Na+].[Na+].CC1=CC(=CC=C1N\N=C1/C=CC2=C(C=C(C(N)=C2C1=O)S([O-])(=O)=O)S([O-])(=O)=O)C1=CC=C(N\N=C2/C=CC3=C(C=C(C(N)=C3C2=O)S([O-])(=O)=O)S([O-])(=O)=O)C(C)=C1
IUPAC Name	tetrasodium (6E)-4-amino-6-[2-(4'-{2-[(2E)-8-amino-1-oxo-5,7-disulfonato-1,2-dihydronaphthalen-2-ylidene]hydrazin-1-yl}-3,3'-dimethyl-[1,1'-biphenyl]-4-yl)hydrazin-1-ylidene]-5-oxo-5,6-dihydronaphthalene-1,3-disulfonate
InChI Key	KBNIFDASRCWYGC-GXNXWABVSA-J
Molecular Formula	C34H24N6Na4O14S4

1,130

Murexide, TCI America™

CAS: 3051-09-0 Molecular Formula: C8H3N5O6-2 Molecular Weight (g/mol): 265.141 MDL Number: MFCD00012777 InChI Key: MUMMBXDKKJEASE-UHFFFAOYSA-L Synonym: Ammonium Purpurate PubChem CID: 51381221 IUPAC Name: 6-oxo-5-[(2,4,6-trioxo-1,3-diazinan-5-ylidene)amino]-1H-pyrimidine-2,4-diolate SMILES: C1(=C(N=C(NC1=O)[O-])[O-])N=C2C(=O)NC(=O)NC2=O

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Specifications

PubChem CID	51381221
CAS	3051-09-0
Molecular Weight (g/mol)	265.141
MDL Number	MFCD00012777
SMILES	C1(=C(N=C(NC1=O)[O-])[O-])N=C2C(=O)NC(=O)NC2=O
Synonym	Ammonium Purpurate
IUPAC Name	6-oxo-5-[(2,4,6-trioxo-1,3-diazinan-5-ylidene)amino]-1H-pyrimidine-2,4-diolate
InChI Key	MUMMBXDKKJEASE-UHFFFAOYSA-L
Molecular Formula	C8H3N5O6-2

1,131

Bromothymol Blue Indicator, 0.04% (w/v), Ricca Chemical

For Glassware Residue Detection

Pricing & Availability
Specifications

Percent Purity	0.04% W/V
CAS	7732-18-5
Color	Dark Blue
pH	6.70 to 6.90
Packaging	Natural Poly Bottle
Grade	Indicator

1,132

Crystal Violet Solution R, EP Reagent 1022901, Ricca Chemical

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

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Specifications

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

1,133

Fluorescein Diacetate 98.0+%, TCI America™

CAS: 596-09-8 Molecular Formula: C24H16O7 Molecular Weight (g/mol): 416.385 MDL Number: MFCD00005062 InChI Key: CHADEQDQBURGHL-UHFFFAOYSA-N PubChem CID: 65047 IUPAC Name: (6'-acetyloxy-3-oxospiro[2-benzofuran-1,9'-xanthene]-3'-yl) acetate SMILES: CC(=O)OC1=CC2=C(C=C1)C3(C4=C(O2)C=C(C=C4)OC(=O)C)C5=CC=CC=C5C(=O)O3

Pricing & Availability
Specifications

PubChem CID	65047
CAS	596-09-8
Molecular Weight (g/mol)	416.385
MDL Number	MFCD00005062
SMILES	CC(=O)OC1=CC2=C(C=C1)C3(C4=C(O2)C=C(C=C4)OC(=O)C)C5=CC=CC=C5C(=O)O3
IUPAC Name	(6'-acetyloxy-3-oxospiro[2-benzofuran-1,9'-xanthene]-3'-yl) acetate
InChI Key	CHADEQDQBURGHL-UHFFFAOYSA-N
Molecular Formula	C24H16O7

1,134

Bromophenol Blue Indicator, 0.1% (w/v), Ricca Chemical

Pricing & Availability
Specifications

Percent Purity	0.1% W/V
CAS	7732-18-5
Color	Dark Reddish Purple
Physical Form	Liquid
pH	4
Packaging	Natural Poly Bottle
CAS Min %	0.1
Chemical Name or Material	Bromophenol Blue Indicator
Grade	Indicator
Concentration	0.1% (w/v)
Solvent or Matrix	Aqueous Solution
CAS Max %	0.1

1,135

Bromopyrogallol Red, TCI America™

CAS: 16574-43-9 Molecular Formula: C19H10Br2O8S Molecular Weight (g/mol): 558.15 MDL Number: MFCD00148865 InChI Key: QFXYYBXMARTXHI-UHFFFAOYSA-N Synonym: Dibromopyrogallolsulfonphthaleine PubChem CID: 85495 IUPAC Name: 2',7'-dibromo-3',4',5',6'-tetrahydroxyspiro[2,1λ⁶-benzoxathiole-3,9'-xanthene]-1,1-dione SMILES: OC1=C(O)C2=C(C=C1Br)C1(OS(=O)(=O)C3=CC=CC=C13)C1=CC(Br)=C(O)C(O)=C1O2

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Specifications

PubChem CID	85495
CAS	16574-43-9
Molecular Weight (g/mol)	558.15
MDL Number	MFCD00148865
SMILES	OC1=C(O)C2=C(C=C1Br)C1(OS(=O)(=O)C3=CC=CC=C13)C1=CC(Br)=C(O)C(O)=C1O2
Synonym	Dibromopyrogallolsulfonphthaleine
IUPAC Name	2',7'-dibromo-3',4',5',6'-tetrahydroxyspiro[2,1λ⁶-benzoxathiole-3,9'-xanthene]-1,1-dione
InChI Key	QFXYYBXMARTXHI-UHFFFAOYSA-N
Molecular Formula	C19H10Br2O8S

1,136

Metacresol Purple Sodium Salt, TCI America™

CAS: 62625-31-4 Molecular Formula: C21H18O5S MDL Number: MFCD00010177 Synonym: m-Cresol Purple Sodium Salt, Sodium m-Cresol Purple, Sodium Metacresol Purple

Pricing & Availability
Specifications

CAS	62625-31-4
MDL Number	MFCD00010177
Synonym	m-Cresol Purple Sodium Salt, Sodium m-Cresol Purple, Sodium Metacresol Purple
Molecular Formula	C21H18O5S

1,137

Phenolphthalin 98.0+%, TCI America™

CAS: 81-90-3 Molecular Formula: C20H16O4 Molecular Weight (g/mol): 320.344 MDL Number: MFCD00036135 InChI Key: FFFPYJTVNSSLBQ-UHFFFAOYSA-N PubChem CID: 66494 ChEBI: CHEBI:34915 IUPAC Name: 2-[bis(4-hydroxyphenyl)methyl]benzoic acid SMILES: C1=CC=C(C(=C1)C(C2=CC=C(C=C2)O)C3=CC=C(C=C3)O)C(=O)O

Pricing & Availability
Specifications

PubChem CID	66494
CAS	81-90-3
Molecular Weight (g/mol)	320.344
ChEBI	CHEBI:34915
MDL Number	MFCD00036135
SMILES	C1=CC=C(C(=C1)C(C2=CC=C(C=C2)O)C3=CC=C(C=C3)O)C(=O)O
IUPAC Name	2-[bis(4-hydroxyphenyl)methyl]benzoic acid
InChI Key	FFFPYJTVNSSLBQ-UHFFFAOYSA-N
Molecular Formula	C20H16O4

1,138

Ferroin Oxidation-Reduction Indicator, Certified, LabChem™

Pricing & Availability
Specifications

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

1,139

Tetrabromophenol Blue 95.0+%, TCI America™

CAS: 4430-25-5 Molecular Formula: C19H6Br8O5S Molecular Weight (g/mol): 985.544 MDL Number: MFCD00005876 InChI Key: QPMIVFWZGPTDPN-UHFFFAOYSA-N Synonym: Tetrabromophenoltetrabromosulfophthalein, TBPB PubChem CID: 78159 IUPAC Name: 2,6-dibromo-4-[4,5,6,7-tetrabromo-3-(3,5-dibromo-4-hydroxyphenyl)-1,1-dioxo-2,1$l^{6}-benzoxathiol-3-yl]phenol SMILES: C1=C(C=C(C(=C1Br)O)Br)C2(C3=C(C(=C(C(=C3Br)Br)Br)Br)S(=O)(=O)O2)C4=CC(=C(C(=C4)Br)O)Br

Pricing & Availability
Specifications

PubChem CID	78159
CAS	4430-25-5
Molecular Weight (g/mol)	985.544
MDL Number	MFCD00005876
SMILES	C1=C(C=C(C(=C1Br)O)Br)C2(C3=C(C(=C(C(=C3Br)Br)Br)Br)S(=O)(=O)O2)C4=CC(=C(C(=C4)Br)O)Br
Synonym	Tetrabromophenoltetrabromosulfophthalein, TBPB
IUPAC Name	2,6-dibromo-4-[4,5,6,7-tetrabromo-3-(3,5-dibromo-4-hydroxyphenyl)-1,1-dioxo-2,1$l^{6}-benzoxathiol-3-yl]phenol
InChI Key	QPMIVFWZGPTDPN-UHFFFAOYSA-N
Molecular Formula	C19H6Br8O5S

1,140

StatLab Wright-Giemsa Stain Kit

Stains for blood and blood parasites in as little as 2 minutes.

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Staining Reagents

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Novus Biologicals™ Nuclear Fast Red Counterstain Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Novus Biologicals™ Alcian Blue (pH 2.5) Stain Kit Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Novus Biologicals™ Nuclear Fast Red Counterstain

Novus Biologicals™ Alcian Blue (pH 2.5) Stain Kit