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 (9,304)

Tissue Stain Blocking Reagents (83)

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316 – 330 of 7,242 results

316

Thermo Scientific™ Remel™ Trichrome Blue, 250 mL bottle

Thermo Scientific™ Remel Trichrome Blue is for detection of Microsporidium in clinical specimens.

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317

Dichlorofluorescein, 0.1% Alcoholic, Certified, LabChem™

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Specifications

Linear Formula	C₂₀H₁₀Cl₂O₅
Color	Yellow
Physical Form	Liquid
Chemical Name or Material	Dichlorofluorescein
Grade	Certified
Identification	Passes Test
Name Note	0.1% Alcoholic
CAS	76-54-0
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, 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. Wear protective gloves, eye protection. Wash exposed skin thoroughly after handling. Do not eat, drink or smoke when using this product. Use only outdoors or in a well-ventilated area. If swallowed: Rinse mouth. Call a poison center/doctor if you feel unwell. If on skin (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. If skin irritation occurs: Get medical advice/attention. Wash contaminated clothing before reuse. If inhaled: Remove person to fresh air and keep comfortable for breathing. Call a poison center/doctor if you feel unwell. 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. 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	Hydrogen fluoride; Carbon monoxide; Carbon dioxide; Hydrogen chloride
Health Hazard 2	GHS H Statement Flammable liquid and vapor. Harmful if swallowed. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Suspected of damaging fertility or the unborn child. Causes damage to organs (central nervous system, optic nerve) (oral).
Packaging	Poly Bottle
Solubility Information	Soluble in water
Health Hazard 1	Danger
Recommended Storage	Room Temperature
Formula Weight	401.2
CAS Max %	0.1
Suitability	Passes Test

318

Bromocresol Green Indicator, 0.1% (w/v), Ricca Chemical

Pricing & Availability
Specifications

Percent Purity	0.1% W/V
CAS	7732-18-5
Color	Dark Blue
Physical Form	Liquid
pH	>5.4
Packaging	Natural Poly Bottle
CAS Min %	0.1
Chemical Name or Material	Bromocresol Green Indicator
Grade	Indicator
Concentration	0.1% (w/v)
Solvent or Matrix	Aqueous Solution
CAS Max %	0.1

319

Epredia™ Shandon™ Instant Eosin

Obtain brilliant and consistent staining with Epredia™ Shandon™ Instant Eosin.

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Specifications

Form	Liquid
Product Type	Eosin
Compatibility	Alum Hematoxylin Stains
Solution Type	Eosin

320

MilliporeSigma Modified Hematoxylin Solution

Hematoxylin solution modified according to Gill II for microscopy

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Specifications

Product Type	Hematoxylin Stain Solution

321

Coomassie Brilliant Blue G-250, MP Biomedicals™

CAS: 6104-58-1 Molecular Formula: C47H48N3NaO7S2 PubChem CID: 6328534 IUPAC Name: sodium;3-[[4-[(Z)-[4-(4-ethoxyanilino)phenyl]-[4-[ethyl-[(3-sulfonatophenyl)methyl]azaniumylidene]-2-methylcyclohexa-2,5-dien-1-ylidene]methyl]-N-ethyl-3-methylanilino]methyl]benzenesulfonate SMILES: CCN(CC1=CC(=CC=C1)S(=O)(=O)[O-])C2=CC(=C(C=C2)C(=C3C=CC(=[N+](CC)CC4=CC(=CC=C4)S(=O)(=O)[O-])C=C3C)C5=CC=C(C=C5)NC6=CC=C(C=C6)OCC)C.[Na+]

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Specifications

PubChem CID	6328534
CAS	6104-58-1
SMILES	CCN(CC1=CC(=CC=C1)S(=O)(=O)[O-])C2=CC(=C(C=C2)C(=C3C=CC(=[N+](CC)CC4=CC(=CC=C4)S(=O)(=O)[O-])C=C3C)C5=CC=C(C=C5)NC6=CC=C(C=C6)OCC)C.[Na+]
IUPAC Name	sodium;3-[[4-[(Z)-[4-(4-ethoxyanilino)phenyl]-[4-[ethyl-[(3-sulfonatophenyl)methyl]azaniumylidene]-2-methylcyclohexa-2,5-dien-1-ylidene]methyl]-N-ethyl-3-methylanilino]methyl]benzenesulfonate
Molecular Formula	C47H48N3NaO7S2

322

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Thermo Scientific Chemicals Toluidine Blue O, Certified, 65% min dye content

CAS: 92-31-9 Molecular Formula: C15H16ClN3S Molecular Weight (g/mol): 305.82 MDL Number: MFCD00011934 InChI Key: HNONEKILPDHFOL-UHFFFAOYSA-M Synonym: Basic Blue 17,C.I. 52040 PubChem CID: 7083 IUPAC Name: (7-amino-8-methylphenothiazin-3-ylidene)-dimethylazanium;chloride SMILES: [Cl-].CN(C)C1=CC=C2N=C3C=C(C)C(N)=CC3=[S+]C2=C1

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Specifications

PubChem CID	7083
CAS	92-31-9
Molecular Weight (g/mol)	305.82
MDL Number	MFCD00011934
SMILES	[Cl-].CN(C)C1=CC=C2N=C3C=C(C)C(N)=CC3=[S+]C2=C1
Synonym	Basic Blue 17,C.I. 52040
IUPAC Name	(7-amino-8-methylphenothiazin-3-ylidene)-dimethylazanium;chloride
InChI Key	HNONEKILPDHFOL-UHFFFAOYSA-M
Molecular Formula	C15H16ClN3S

323

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Thermo Scientific Chemicals Auramine O, pure, biological stain

CAS: 2465-27-2 Molecular Formula: C17H22ClN3 Molecular Weight (g/mol): 303.834 MDL Number: MFCD00012484 InChI Key: KSCQDDRPFHTIRL-UHFFFAOYSA-N Synonym: Basic Yellow 2,4, 4'-(Imidocarbonyl)bis(N, N-dimethylaniline) monohydrochloride,C.I. 41000 PubChem CID: 17170 ChEBI: CHEBI:51876 IUPAC Name: 4-[4-(dimethylamino)benzenecarboximidoyl]-N,N-dimethylaniline;hydrochloride SMILES: CN(C)C1=CC=C(C=C1)C(=N)C2=CC=C(C=C2)N(C)C.Cl

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Specifications

PubChem CID	17170
CAS	2465-27-2
Molecular Weight (g/mol)	303.834
ChEBI	CHEBI:51876
MDL Number	MFCD00012484
SMILES	CN(C)C1=CC=C(C=C1)C(=N)C2=CC=C(C=C2)N(C)C.Cl
Synonym	Basic Yellow 2,4, 4'-(Imidocarbonyl)bis(N, N-dimethylaniline) monohydrochloride,C.I. 41000
IUPAC Name	4-[4-(dimethylamino)benzenecarboximidoyl]-N,N-dimethylaniline;hydrochloride
InChI Key	KSCQDDRPFHTIRL-UHFFFAOYSA-N
Molecular Formula	C17H22ClN3

324

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m-Cresol Purple sodium salt

CAS: 62625-31-4 Molecular Formula: C₂₁H₁₇NaO₅S MDL Number: MFCD00010177 Synonym: m-Cresol Purple, water soluble; m-Cresolsulfonephthalein sodium salt

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Specifications

CAS	62625-31-4
MDL Number	MFCD00010177
Synonym	m-Cresol Purple, water soluble; m-Cresolsulfonephthalein sodium salt
Molecular Formula	C₂₁H₁₇NaO₅S

325

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Thermo Scientific Chemicals Nile Blue A

CAS: 3625-57-8 Molecular Formula: C40H40N6O6S Molecular Weight (g/mol): 732.84 MDL Number: MFCD00064529 InChI Key: QIRDPEPUXNCOLD-UHFFFAOYSA-N PubChem CID: 19256 IUPAC Name: [9-(diethylamino)benzo[a]phenoxazin-5-ylidene]azanium;sulfate SMILES: CCN(CC)C1=CC2=C(C=C1)N=C3C4=CC=CC=C4C(=[NH2+])C=C3O2.CCN(CC)C1=CC2=C(C=C1)N=C3C4=CC=CC=C4C(=[NH2+])C=C3O2.[O-]S(=O)(=O)[O-]

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Specifications

PubChem CID	19256
CAS	3625-57-8
Molecular Weight (g/mol)	732.84
MDL Number	MFCD00064529
SMILES	CCN(CC)C1=CC2=C(C=C1)N=C3C4=CC=CC=C4C(=[NH2+])C=C3O2.CCN(CC)C1=CC2=C(C=C1)N=C3C4=CC=CC=C4C(=[NH2+])C=C3O2.[O-]S(=O)(=O)[O-]
IUPAC Name	[9-(diethylamino)benzo[a]phenoxazin-5-ylidene]azanium;sulfate
InChI Key	QIRDPEPUXNCOLD-UHFFFAOYSA-N
Molecular Formula	C40H40N6O6S

326

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Thermo Scientific Chemicals Bromocresol Green, ACS reagent

CAS: 76-60-8 Molecular Formula: C21H14Br4O5S Molecular Weight (g/mol): 698.014 MDL Number: MFCD00005874 InChI Key: FRPHFZCDPYBUAU-UHFFFAOYSA-N Synonym: 3',3'',5',5''-Tetrabromo-m-cresolsulfonephthalein,BCG,3', 3'', 5' PubChem CID: 6451 IUPAC Name: 2,6-dibromo-4-[3-(3,5-dibromo-4-hydroxy-2-methylphenyl)-1,1-dioxo-2,1$l^{6}-benzoxathiol-3-yl]-3-methylphenol SMILES: CC1=C(C(=C(C=C1C2(C3=CC=CC=C3S(=O)(=O)O2)C4=CC(=C(C(=C4C)Br)O)Br)Br)O)Br

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Specifications

PubChem CID	6451
CAS	76-60-8
Molecular Weight (g/mol)	698.014
MDL Number	MFCD00005874
SMILES	CC1=C(C(=C(C=C1C2(C3=CC=CC=C3S(=O)(=O)O2)C4=CC(=C(C(=C4C)Br)O)Br)Br)O)Br
Synonym	3',3'',5',5''-Tetrabromo-m-cresolsulfonephthalein,BCG,3', 3'', 5'
IUPAC Name	2,6-dibromo-4-[3-(3,5-dibromo-4-hydroxy-2-methylphenyl)-1,1-dioxo-2,1$l^{6}-benzoxathiol-3-yl]-3-methylphenol
InChI Key	FRPHFZCDPYBUAU-UHFFFAOYSA-N
Molecular Formula	C21H14Br4O5S

327

Osmium Tetroxide (4% in Water), TCI America™

CAS: 20816-12-0 Molecular Formula: O4Os Molecular Weight (g/mol): 254.23 MDL Number: MFCD00011150 InChI Key: VUVGYHUDAICLFK-UHFFFAOYSA-N Synonym: Osmium(VIII) Oxide PubChem CID: 30318 IUPAC Name: tetraoxoosmium SMILES: O=[Os](=O)(=O)=O

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Specifications

PubChem CID	30318
CAS	20816-12-0
Molecular Weight (g/mol)	254.23
MDL Number	MFCD00011150
SMILES	O=[Os](=O)(=O)=O
Synonym	Osmium(VIII) Oxide
IUPAC Name	tetraoxoosmium
InChI Key	VUVGYHUDAICLFK-UHFFFAOYSA-N
Molecular Formula	O4Os

328

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Thermo Scientific Chemicals Prussian Blue, pure

CAS: 14038-43-8 Molecular Formula: C18Fe7N18 Molecular Weight (g/mol): 859.239 MDL Number: MFCD00135663 InChI Key: DCYOBGZUOMKFPA-UHFFFAOYSA-N Synonym: C.I. 77510,Ferric ferrocyanide,Pigment Blue 27 PubChem CID: 2724251 IUPAC Name: iron(2+);iron(3+);octadecacyanide SMILES: [C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[Fe+2].[Fe+2].[Fe+2].[Fe+3].[Fe+3].[Fe+3].[Fe+3]

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Specifications

PubChem CID	2724251
CAS	14038-43-8
Molecular Weight (g/mol)	859.239
MDL Number	MFCD00135663
SMILES	[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[Fe+2].[Fe+2].[Fe+2].[Fe+3].[Fe+3].[Fe+3].[Fe+3]
Synonym	C.I. 77510,Ferric ferrocyanide,Pigment Blue 27
IUPAC Name	iron(2+);iron(3+);octadecacyanide
InChI Key	DCYOBGZUOMKFPA-UHFFFAOYSA-N
Molecular Formula	C18Fe7N18

329

MP Biomedicals™ Fluorescent Brightener 28

Fluoresces clear bluish under UV radiation. Fluorescent Brightener 28 is a colorless organic compound that is used for the staining of fungi and as a viability stain. Industrial uses include use as a fluorescent brightening agent for cellulose and polyamide fabrics, paper and detergents and soaps.

Pricing & Availability
Specifications

Format	Powder
CAS	4404-43-7
Product Type	Fluorescent Brightener
Color	Yellow
Synonym	Calcofluor White M2R, Tinopal UNPA-GX
Concentration	0.05% to 0.20%
Storage Requirements	Store at Room Temperature (15°C to 30°C)
Molecular Formula	C40H42N12O10S2Na2
For Use With (Application)	Fluorescent Brightener 28 is used for the staining of fungi and as a viability stain. Industrial uses include use as a fluorescent brightening agent for cellulose and polyamide fabrics, paper and in detergents and soaps.
Formula Weight	960.96
Melting Point	290°C

330

Allura Red AC, TCI America™

CAS: 25956-17-6 Molecular Formula: C18H14N2Na2O8S2 Molecular Weight (g/mol): 496.42 MDL Number: MFCD00059526 InChI Key: POXPUHKJGLHZEM-VIPPSAFOSA-L Synonym: FD and C Red No.40 PubChem CID: 44386827 IUPAC Name: disodium (5E)-5-[2-(2-methoxy-5-methyl-4-sulfonatophenyl)hydrazin-1-ylidene]-6-oxo-5,6-dihydronaphthalene-2-sulfonate SMILES: [Na+].[Na+].COC1=CC(=C(C)C=C1N\N=C1\C(=O)C=CC2=CC(=CC=C12)S([O-])(=O)=O)S([O-])(=O)=O

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Specifications

PubChem CID	44386827
CAS	25956-17-6
Molecular Weight (g/mol)	496.42
MDL Number	MFCD00059526
SMILES	[Na+].[Na+].COC1=CC(=C(C)C=C1N\N=C1\C(=O)C=CC2=CC(=CC=C12)S([O-])(=O)=O)S([O-])(=O)=O
Synonym	FD and C Red No.40
IUPAC Name	disodium (5E)-5-[2-(2-methoxy-5-methyl-4-sulfonatophenyl)hydrazin-1-ylidene]-6-oxo-5,6-dihydronaphthalene-2-sulfonate
InChI Key	POXPUHKJGLHZEM-VIPPSAFOSA-L
Molecular Formula	C18H14N2Na2O8S2

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