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 (9,318)

Tissue Stain Blocking Reagents (81)

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1,291 – 1,305 of 7,270 results

1,291

Acid Red 112 85.0+%, TCI America™

CAS: 6226-79-5 Molecular Formula: C22H12N4Na4O13S4 Molecular Weight (g/mol): 760.552 MDL Number: MFCD00003892 InChI Key: VSXKEUCERCWGKF-STNZDNLRSA-J Synonym: Ponceau S PubChem CID: 11320219 IUPAC Name: tetrasodium;(4Z)-3-oxo-4-[[2-sulfonato-4-[(4-sulfonatophenyl)diazenyl]phenyl]hydrazinylidene]naphthalene-2,7-disulfonate SMILES: C1=CC(=CC=C1N=NC2=CC(=C(C=C2)NN=C3C4=C(C=C(C=C4)S(=O)(=O)[O-])C=C(C3=O)S(=O)(=O)[O-])S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+].[Na+].[Na+]

Pricing & Availability
Specifications

PubChem CID	11320219
CAS	6226-79-5
Molecular Weight (g/mol)	760.552
MDL Number	MFCD00003892
SMILES	C1=CC(=CC=C1N=NC2=CC(=C(C=C2)NN=C3C4=C(C=C(C=C4)S(=O)(=O)[O-])C=C(C3=O)S(=O)(=O)[O-])S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+].[Na+].[Na+]
Synonym	Ponceau S
IUPAC Name	tetrasodium;(4Z)-3-oxo-4-[[2-sulfonato-4-[(4-sulfonatophenyl)diazenyl]phenyl]hydrazinylidene]naphthalene-2,7-disulfonate
InChI Key	VSXKEUCERCWGKF-STNZDNLRSA-J
Molecular Formula	C22H12N4Na4O13S4

1,292

Nitro Blue Tetrazolium 98.0+%, TCI America™

CAS: 298-83-9 Molecular Formula: C40H30Cl2N10O6 Molecular Weight (g/mol): 817.644 MDL Number: MFCD00012159 InChI Key: FSVCQIDHPKZJSO-UHFFFAOYSA-L Synonym: 2,2′C-Di-p-nitrophenyl-5,5′C-diphenyl-(3,3′C-dimethoxy)-4,4′C-bisphenyleneditetrazolium Chloride, NBT PubChem CID: 9281 ChEBI: CHEBI:9505 IUPAC Name: 2-[2-methoxy-4-[3-methoxy-4-[3-(4-nitrophenyl)-5-phenyltetrazol-2-ium-2-yl]phenyl]phenyl]-3-(4-nitrophenyl)-5-phenyltetrazol-2-ium;dichloride SMILES: COC1=C(C=CC(=C1)C2=CC(=C(C=C2)[N+]3=NC(=NN3C4=CC=C(C=C4)[N+](=O)[O-])C5=CC=CC=C5)OC)[N+]6=NC(=NN6C7=CC=C(C=C7)[N+](=O)[O-])C8=CC=CC=C8.[Cl-].[Cl-]

Pricing & Availability
Specifications

PubChem CID	9281
CAS	298-83-9
Molecular Weight (g/mol)	817.644
ChEBI	CHEBI:9505
MDL Number	MFCD00012159
SMILES	COC1=C(C=CC(=C1)C2=CC(=C(C=C2)[N+]3=NC(=NN3C4=CC=C(C=C4)[N+](=O)[O-])C5=CC=CC=C5)OC)[N+]6=NC(=NN6C7=CC=C(C=C7)[N+](=O)[O-])C8=CC=CC=C8.[Cl-].[Cl-]
Synonym	2,2′C-Di-p-nitrophenyl-5,5′C-diphenyl-(3,3′C-dimethoxy)-4,4′C-bisphenyleneditetrazolium Chloride, NBT
IUPAC Name	2-[2-methoxy-4-[3-methoxy-4-[3-(4-nitrophenyl)-5-phenyltetrazol-2-ium-2-yl]phenyl]phenyl]-3-(4-nitrophenyl)-5-phenyltetrazol-2-ium;dichloride
InChI Key	FSVCQIDHPKZJSO-UHFFFAOYSA-L
Molecular Formula	C40H30Cl2N10O6

1,293

Xylenol Orange Indicator, 0.1% (w/v), Ricca Chemical

CAS: 3618-43-7 Molecular Formula: C₃₁H₂₈N₂Na₄O₁₃S

Pricing & Availability
Specifications

CAS	3618-43-7
Molecular Formula	C₃₁H₂₈N₂Na₄O₁₃S

1,294

Bromocresol Green-Methyl Red TS, Ricca Chemical

Pricing & Availability
Specifications

Name Note	Test Solution
CAS	63451-28-5
Color	Red
Physical Form	Liquid
Packaging	Natural Poly Bottle
CAS Min %	0.06
Chemical Name or Material	Bromocresol Green-Methyl Red
Grade	Indicator
CAS Max %	0.06

1,295

Phenolphthalein Indicator, 1% (w/v) in 70% (v/v) Alcohol, Neutralized, Ricca Chemical

Pricing & Availability
Specifications

Percent Purity	1% W/V
CAS	67-56-1
Color	Colorless to Pink
Physical Form	Liquid
pH	8
Packaging	Natural Poly Bottle
CAS Min %	2.0
Chemical Name or Material	Phenolphthalein Indicator
Grade	Indicator
Concentration	1% (w/v)
Solvent or Matrix	70% (v/v) Alcohol
CAS Max %	4.0

1,296

Acid Violet 43 97.0+%, TCI America™

CAS: 4430-18-6 Molecular Formula: C21H14NNaO6S Molecular Weight (g/mol): 431.394 MDL Number: MFCD00068446 InChI Key: GTKIEPUIFBBXJQ-UHFFFAOYSA-M PubChem CID: 23669622 IUPAC Name: sodium;2-[(4-hydroxy-9,10-dioxoanthracen-1-yl)amino]-5-methylbenzenesulfonate SMILES: CC1=CC(=C(C=C1)NC2=C3C(=C(C=C2)O)C(=O)C4=CC=CC=C4C3=O)S(=O)(=O)[O-].[Na+]

Pricing & Availability
Specifications

PubChem CID	23669622
CAS	4430-18-6
Molecular Weight (g/mol)	431.394
MDL Number	MFCD00068446
SMILES	CC1=CC(=C(C=C1)NC2=C3C(=C(C=C2)O)C(=O)C4=CC=CC=C4C3=O)S(=O)(=O)[O-].[Na+]
IUPAC Name	sodium;2-[(4-hydroxy-9,10-dioxoanthracen-1-yl)amino]-5-methylbenzenesulfonate
InChI Key	GTKIEPUIFBBXJQ-UHFFFAOYSA-M
Molecular Formula	C21H14NNaO6S

1,297

Malachite Green, Oxalate 95.0+%, TCI America™

CAS: 2437-29-8 Molecular Formula: C52H54N4O12 Molecular Weight (g/mol): 927.02 MDL Number: MFCD00011766,MFCD00151209 InChI Key: CNYGFPPAGUCRIC-UHFFFAOYSA-L Synonym: Basic Green 4 PubChem CID: 2724411 IUPAC Name: bis(bis[4-(dimethylamino)phenyl](phenyl)methylium) oxalic acid dihydrogen oxalate SMILES: OC(=O)C(O)=O.OC(=O)C([O-])=O.OC(=O)C([O-])=O.CN(C)C1=CC=C(C=C1)[C+](C1=CC=CC=C1)C1=CC=C(C=C1)N(C)C.CN(C)C1=CC=C(C=C1)[C+](C1=CC=CC=C1)C1=CC=C(C=C1)N(C)C

Pricing & Availability
Specifications

PubChem CID	2724411
CAS	2437-29-8
Molecular Weight (g/mol)	927.02
MDL Number	MFCD00011766,MFCD00151209
SMILES	OC(=O)C(O)=O.OC(=O)C([O-])=O.OC(=O)C([O-])=O.CN(C)C1=CC=C(C=C1)[C+](C1=CC=CC=C1)C1=CC=C(C=C1)N(C)C.CN(C)C1=CC=C(C=C1)[C+](C1=CC=CC=C1)C1=CC=C(C=C1)N(C)C
Synonym	Basic Green 4
IUPAC Name	bis(bis[4-(dimethylamino)phenyl](phenyl)methylium) oxalic acid dihydrogen oxalate
InChI Key	CNYGFPPAGUCRIC-UHFFFAOYSA-L
Molecular Formula	C52H54N4O12

1,298

StatLab MasterTech Feulgen Stain Kit

Stains for deoxyribonucleic acid (DNA) in 35 minutes

Pricing & Availability

1,299

Beckman Coulter FPBCI Giemsa Stain 3X2L

For use with Beckman Coulter analyzers

Pricing & Availability

1,300

Oralith Brilliant Pink R 95.0+%, TCI America™

CAS: 2379-74-0 Molecular Formula: C18H10Cl2O2S2 Molecular Weight (g/mol): 393.30 MDL Number: MFCD00059165 InChI Key: NDDLLTAIKYHPOD-ZCXUNETKSA-N Synonym: Threne Brilliant Pink R, Vat Red 1 PubChem CID: 3000709 IUPAC Name: 6-chloro-2-[(2Z)-6-chloro-4-methyl-3-oxo-2,3-dihydro-1-benzothiophen-2-ylidene]-4-methyl-2,3-dihydro-1-benzothiophen-3-one SMILES: CC1=CC(Cl)=CC2=C1C(=O)\C(S2)=C1\SC2=CC(Cl)=CC(C)=C2C1=O

Pricing & Availability
Specifications

PubChem CID	3000709
CAS	2379-74-0
Molecular Weight (g/mol)	393.30
MDL Number	MFCD00059165
SMILES	CC1=CC(Cl)=CC2=C1C(=O)\C(S2)=C1\SC2=CC(Cl)=CC(C)=C2C1=O
Synonym	Threne Brilliant Pink R, Vat Red 1
IUPAC Name	6-chloro-2-[(2Z)-6-chloro-4-methyl-3-oxo-2,3-dihydro-1-benzothiophen-2-ylidene]-4-methyl-2,3-dihydro-1-benzothiophen-3-one
InChI Key	NDDLLTAIKYHPOD-ZCXUNETKSA-N
Molecular Formula	C18H10Cl2O2S2

1,301

Thymol Blue Sodium Salt, TCI America™

CAS: 62625-21-2 Molecular Formula: C27H29NaO5S Molecular Weight (g/mol): 488.57 MDL Number: MFCD00151093 InChI Key: OCMIKNBSIRSUPI-FRWNMSGJSA-M Synonym: Sodium Thymol Blue 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
Synonym	Sodium Thymol Blue
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

1,302

Acid Red 9, TCI America™

CAS: 8003-59-6 Molecular Formula: C20H13N2NaO4S Molecular Weight (g/mol): 400.384 MDL Number: MFCD00151319 InChI Key: GUJSXTXHVQUPDG-KGYDJYTLSA-M Synonym: Silk Scarlet PubChem CID: 133112856 IUPAC Name: sodium;6-[(2Z)-2-(2-oxonaphthalen-1-ylidene)hydrazinyl]naphthalene-2-sulfonate SMILES: C1=CC=C2C(=C1)C=CC(=O)C2=NNC3=CC4=C(C=C3)C=C(C=C4)S(=O)(=O)[O-].[Na+]

Pricing & Availability
Specifications

PubChem CID	133112856
CAS	8003-59-6
Molecular Weight (g/mol)	400.384
MDL Number	MFCD00151319
SMILES	C1=CC=C2C(=C1)C=CC(=O)C2=NNC3=CC4=C(C=C3)C=C(C=C4)S(=O)(=O)[O-].[Na+]
Synonym	Silk Scarlet
IUPAC Name	sodium;6-[(2Z)-2-(2-oxonaphthalen-1-ylidene)hydrazinyl]naphthalene-2-sulfonate
InChI Key	GUJSXTXHVQUPDG-KGYDJYTLSA-M
Molecular Formula	C20H13N2NaO4S

1,303

Universal Indicator, pH 2 - 10, Ricca Chemical

Pricing & Availability
Specifications

Name Note	pH 2 - 10
CAS	493-52-7
Color	Dark Brown
Physical Form	Liquid
CAS Min %	0.02
Chemical Name or Material	Universal Indicator
Grade	Indicator
CAS Max %	0.03

1,304

Methyl Red Indicator, 1% (w/v), Ricca Chemical

For Acid-Base Titrations

Pricing & Availability
Specifications

Concentration or Composition (by Analyte or Components)	1% (w/v)
Percent Purity	1% W/V
CAS	7732-18-5
pH Color Changes	pink (pH 4.2) - yellow (pH 6.2)
Color	Orange to Red
pH	5
Packaging	Natural Poly Bottle
Chemical Name or Material	Methyl Red Indicator
Grade	Indicator
Solvent or Matrix	Aqueous solution

1,305

Direct Blue 14, TCI America™

CAS: 72-57-1 Molecular Formula: C34H24N6Na4O14S4 Molecular Weight (g/mol): 960.79 MDL Number: MFCD00003969 InChI Key: WMYVHJWZUUEZNE-ARWFNKCKSA-J Synonym: Trypan Blue PubChem CID: 9562061 IUPAC Name: tetrasodium (3Z)-5-amino-3-[2-(4'-{2-[(2Z)-8-amino-1-oxo-3,6-disulfonato-1,2-dihydronaphthalen-2-ylidene]hydrazin-1-yl}-3,3'-dimethyl-[1,1'-biphenyl]-4-yl)hydrazin-1-ylidene]-4-oxo-3,4-dihydronaphthalene-2,7-disulfonate SMILES: [Na+].[Na+].[Na+].[Na+].CC1=CC(=CC=C1N\N=C1\C(=O)C2=C(N)C=C(C=C2C=C1S([O-])(=O)=O)S([O-])(=O)=O)C1=CC=C(N\N=C2\C(=O)C3=C(N)C=C(C=C3C=C2S([O-])(=O)=O)S([O-])(=O)=O)C(C)=C1

Pricing & Availability
Specifications

PubChem CID	9562061
CAS	72-57-1
Molecular Weight (g/mol)	960.79
MDL Number	MFCD00003969
SMILES	[Na+].[Na+].[Na+].[Na+].CC1=CC(=CC=C1N\N=C1\C(=O)C2=C(N)C=C(C=C2C=C1S([O-])(=O)=O)S([O-])(=O)=O)C1=CC=C(N\N=C2\C(=O)C3=C(N)C=C(C=C3C=C2S([O-])(=O)=O)S([O-])(=O)=O)C(C)=C1
Synonym	Trypan Blue
IUPAC Name	tetrasodium (3Z)-5-amino-3-[2-(4'-{2-[(2Z)-8-amino-1-oxo-3,6-disulfonato-1,2-dihydronaphthalen-2-ylidene]hydrazin-1-yl}-3,3'-dimethyl-[1,1'-biphenyl]-4-yl)hydrazin-1-ylidene]-4-oxo-3,4-dihydronaphthalene-2,7-disulfonate
InChI Key	WMYVHJWZUUEZNE-ARWFNKCKSA-J
Molecular Formula	C34H24N6Na4O14S4

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