Stains and Dyes

A variety of solutions used to selectively bind to and enhance the visibility of biological structures using color and/or fluorescence; used for histology, protein staining, electrophoresis, bacterial classification, blotting, etc.

436 – 450 of 6,411 results

436

Thermo Scientific Chemicals Bromothymol Blue sodium salt

CAS: 34722-90-2 Molecular Formula: C27H27Br2NaO5S Molecular Weight (g/mol): 646.37 MDL Number: MFCD00077263,MFCD00077263,MFCD00077263 InChI Key: NMKFVGALBGZKGW-FKWCIMQXSA-M Synonym: Bromothymol Blue, water soluble PubChem CID: 102183223 IUPAC Name: sodium;2-bromo-4-[(Z)-(3-bromo-2-methyl-4-oxo-5-propan-2-ylcyclohexa-2,5-dien-1-ylidene)-(2-sulfophenyl)methyl]-3-methyl-6-propan-2-ylphenolate SMILES: [Na+].CC(C)C1=CC(\C(C2=CC=CC=C2S([O-])(=O)=O)=C2/C=C(C(C)C)C(=O)C(Br)=C2C)=C(C)C(Br)=C1O

Pricing & Availability
Specifications

PubChem CID	102183223
CAS	34722-90-2
Molecular Weight (g/mol)	646.37
MDL Number	MFCD00077263,MFCD00077263,MFCD00077263
SMILES	[Na+].CC(C)C1=CC(\C(C2=CC=CC=C2S([O-])(=O)=O)=C2/C=C(C(C)C)C(=O)C(Br)=C2C)=C(C)C(Br)=C1O
Synonym	Bromothymol Blue, water soluble
IUPAC Name	sodium;2-bromo-4-[(Z)-(3-bromo-2-methyl-4-oxo-5-propan-2-ylcyclohexa-2,5-dien-1-ylidene)-(2-sulfophenyl)methyl]-3-methyl-6-propan-2-ylphenolate
InChI Key	NMKFVGALBGZKGW-FKWCIMQXSA-M
Molecular Formula	C27H27Br2NaO5S

437

Thermo Scientific Chemicals Methyl Red

CAS: 493-52-7 Molecular Formula: C15H15N3O2 Molecular Weight (g/mol): 269.304 MDL Number: MFCD00002425 InChI Key: CEQFOVLGLXCDCX-UHFFFAOYSA-N Synonym: C.I. 13020 PubChem CID: 10303 IUPAC Name: 2-[[4-(dimethylamino)phenyl]diazenyl]benzoic acid SMILES: CN(C)C1=CC=C(C=C1)N=NC2=CC=CC=C2C(=O)O

Pricing & Availability
Specifications

PubChem CID	10303
CAS	493-52-7
Molecular Weight (g/mol)	269.304
MDL Number	MFCD00002425
SMILES	CN(C)C1=CC=C(C=C1)N=NC2=CC=CC=C2C(=O)O
Synonym	C.I. 13020
IUPAC Name	2-[[4-(dimethylamino)phenyl]diazenyl]benzoic acid
InChI Key	CEQFOVLGLXCDCX-UHFFFAOYSA-N
Molecular Formula	C15H15N3O2

438

Tetrabromophenolphthalein Ethyl Ester, Potassium Salt, Indicator Grade

CAS: 62637-91-6 Molecular Formula: C22H13Br4KO4 Molecular Weight (g/mol): 700.06 MDL Number: MFCD00011662 InChI Key: WCIQBKUTYDIBJC-UHFFFAOYSA-M PubChem CID: 23689366 SMILES: [K+].CCOC(=O)C1=CC=CC=C1C(C1=CC(Br)=C([O-])C(Br)=C1)=C1C=C(Br)C(=O)C(Br)=C1

Pricing & Availability
Specifications

PubChem CID	23689366
CAS	62637-91-6
Molecular Weight (g/mol)	700.06
MDL Number	MFCD00011662
SMILES	[K+].CCOC(=O)C1=CC=CC=C1C(C1=CC(Br)=C([O-])C(Br)=C1)=C1C=C(Br)C(=O)C(Br)=C1
InChI Key	WCIQBKUTYDIBJC-UHFFFAOYSA-M
Molecular Formula	C22H13Br4KO4

439

Thermo Scientific Chemicals Stains-all, 97%, pure

CAS: 7423-31-6 Molecular Formula: C30H28BrN2S2+ Molecular Weight (g/mol): 560.592 MDL Number: MFCD00078788 InChI Key: MPBRYMWMMKKRGC-UHFFFAOYSA-N Synonym: 1-Ethyl-2-[3-(1-ethylnaphtho[1, 2-d]thiazolin-2-ylidene)-2-methylpropenyl]naphtho[1, 2-d]thiazolium bromide PubChem CID: 123134119 IUPAC Name: (2E)-1-ethyl-2-[(E)-3-(1-ethylbenzo[e][1,3]benzothiazol-1-ium-2-yl)-2-methylprop-2-enylidene]benzo[e][1,3]benzothiazole;hydrobromide SMILES: CCN1C(=CC(=CC2=[N+](C3=C(S2)C=CC4=CC=CC=C43)CC)C)SC5=C1C6=CC=CC=C6C=C5.Br

Pricing & Availability
Specifications

PubChem CID	123134119
CAS	7423-31-6
Molecular Weight (g/mol)	560.592
MDL Number	MFCD00078788
SMILES	CCN1C(=CC(=CC2=[N+](C3=C(S2)C=CC4=CC=CC=C43)CC)C)SC5=C1C6=CC=CC=C6C=C5.Br
Synonym	1-Ethyl-2-[3-(1-ethylnaphtho[1, 2-d]thiazolin-2-ylidene)-2-methylpropenyl]naphtho[1, 2-d]thiazolium bromide
IUPAC Name	(2E)-1-ethyl-2-[(E)-3-(1-ethylbenzo[e][1,3]benzothiazol-1-ium-2-yl)-2-methylprop-2-enylidene]benzo[e][1,3]benzothiazole;hydrobromide
InChI Key	MPBRYMWMMKKRGC-UHFFFAOYSA-N
Molecular Formula	C30H28BrN2S2+

440

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

Pricing & Availability
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

441

Crystal Violet, ACS, 90+%

CAS: 548-62-9 Molecular Formula: C25H30ClN3 Molecular Weight (g/mol): 407.986 MDL Number: MFCD00011750 InChI Key: ZXJXZNDDNMQXFV-UHFFFAOYSA-M Synonym: Basic Violet 3; C.I. 42555 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
MDL Number	MFCD00011750
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-]
Synonym	Basic Violet 3; C.I. 42555
IUPAC Name	[4-[bis[4-(dimethylamino)phenyl]methylidene]cyclohexa-2,5-dien-1-ylidene]-dimethylazanium;chloride
InChI Key	ZXJXZNDDNMQXFV-UHFFFAOYSA-M
Molecular Formula	C25H30ClN3

442

Thermo Scientific Chemicals Bromocresol Green sodium salt, 0.04% w/v aq. soln.

CAS: 62625-32-5 MDL Number: MFCD00148898 Synonym: Bromocresol Green, water soluble

Pricing & Availability
Specifications

CAS	62625-32-5
MDL Number	MFCD00148898
Synonym	Bromocresol Green, water soluble

443

Thermo Scientific Chemicals Cresol Red

CAS: 1733-12-6 Molecular Formula: C21H18O5S Molecular Weight (g/mol): 382.43 MDL Number: MFCD00005878 InChI Key: OBRMNDMBJQTZHV-UHFFFAOYSA-N Synonym: o-Cresolsulfonephthalein PubChem CID: 73013 ChEBI: CHEBI:86218 IUPAC Name: 4-[3-(4-hydroxy-3-methylphenyl)-1,1-dioxo-2,1$l^{6}-benzoxathiol-3-yl]-2-methylphenol SMILES: CC1=CC(=CC=C1O)C1(OS(=O)(=O)C2=CC=CC=C12)C1=CC=C(O)C(C)=C1

Pricing & Availability
Specifications

PubChem CID	73013
CAS	1733-12-6
Molecular Weight (g/mol)	382.43
ChEBI	CHEBI:86218
MDL Number	MFCD00005878
SMILES	CC1=CC(=CC=C1O)C1(OS(=O)(=O)C2=CC=CC=C12)C1=CC=C(O)C(C)=C1
Synonym	o-Cresolsulfonephthalein
IUPAC Name	4-[3-(4-hydroxy-3-methylphenyl)-1,1-dioxo-2,1$l^{6}-benzoxathiol-3-yl]-2-methylphenol
InChI Key	OBRMNDMBJQTZHV-UHFFFAOYSA-N
Molecular Formula	C21H18O5S

444

Indocyanine green, MP Biomedicals™

CAS: 3599-32-4 Molecular Formula: C43H47N2NaO6S2 Molecular Weight (g/mol): 774.967 MDL Number: MFCD00013078 InChI Key: MOFVSTNWEDAEEK-UHFFFAOYSA-M Synonym: Cardiogreen,Fax green PubChem CID: 132274068 ChEBI: CHEBI:31696 IUPAC Name: sodium;4-[(2E)-2-[(2E,4E,6Z)-7-[1,1-dimethyl-3-(4-sulfonatobutyl)benzo[e]indol-3-ium-2-yl]hepta-2,4,6-trienylidene]-1,1-dimethylbenzo[e]indol-3-yl]butane-1-sulfonate SMILES: CC1(C(=[N+](C2=C1C3=CC=CC=C3C=C2)CCCCS(=O)(=O)[O-])C=CC=CC=CC=C4C(C5=C(N4CCCCS(=O)(=O)[O-])C=CC6=CC=CC=C65)(C)C)C.[Na+]

Pricing & Availability
Specifications

PubChem CID	132274068
CAS	3599-32-4
Molecular Weight (g/mol)	774.967
ChEBI	CHEBI:31696
MDL Number	MFCD00013078
SMILES	CC1(C(=[N+](C2=C1C3=CC=CC=C3C=C2)CCCCS(=O)(=O)[O-])C=CC=CC=CC=C4C(C5=C(N4CCCCS(=O)(=O)[O-])C=CC6=CC=CC=C65)(C)C)C.[Na+]
Synonym	Cardiogreen,Fax green
IUPAC Name	sodium;4-[(2E)-2-[(2E,4E,6Z)-7-[1,1-dimethyl-3-(4-sulfonatobutyl)benzo[e]indol-3-ium-2-yl]hepta-2,4,6-trienylidene]-1,1-dimethylbenzo[e]indol-3-yl]butane-1-sulfonate
InChI Key	MOFVSTNWEDAEEK-UHFFFAOYSA-M
Molecular Formula	C43H47N2NaO6S2

445

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

CAS: 62625-21-2 Molecular Formula: C27H29NaO5S Molecular Weight (g/mol): Mixture 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)	Mixture
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

446

Thermo Scientific™ Remel™ TB Malachite Green Counterstain

Thermo Scientific™ Remel TB Malachite Green is a counterstain for TB Kinyoun stain procedure.

Pricing & Availability

447

Orange G loading dye (6X), glycerol based

Pricing & Availability
Specifications

Name Note	glycerol based
Health Hazard 3	GHS P Statement P280-P264-P305+P351+P338-P337+P313 Wear protective gloves/protective clothing/eye protection/face protection. Wash thoroughly after handling. 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.
Color	Orange
Health Hazard 2	GHS H Statement H319 Causes serious eye irritation.
Physical Form	Liquid
Solubility Information	Soluble in water.
Health Hazard 1	Warning
Chemical Name or Material	Orange G loading dye
TSCA	Yes
Recommended Storage	Keep cold
Concentration	6X

448

Thermo Scientific Chemicals Orange II, pure, certified

CAS: 633-96-5 Molecular Formula: C16H11N2NaO4S Molecular Weight (g/mol): 350.324 MDL Number: MFCD00011657 InChI Key: IGQFKZCLTLAWLO-UHFFFAOYSA-M Synonym: Acid Orange 7,C.I. 15510,p-(2-Hydroxy-1-naphthylazo)benzenesulfonic acid, sodium salt PubChem CID: 44135675 IUPAC Name: sodium;4-[2-(2-oxonaphthalen-1-ylidene)hydrazinyl]benzenesulfonate SMILES: C1=CC=C2C(=C1)C=CC(=O)C2=NNC3=CC=C(C=C3)S(=O)(=O)[O-].[Na+]

Pricing & Availability
Specifications

PubChem CID	44135675
CAS	633-96-5
Molecular Weight (g/mol)	350.324
MDL Number	MFCD00011657
SMILES	C1=CC=C2C(=C1)C=CC(=O)C2=NNC3=CC=C(C=C3)S(=O)(=O)[O-].[Na+]
Synonym	Acid Orange 7,C.I. 15510,p-(2-Hydroxy-1-naphthylazo)benzenesulfonic acid, sodium salt
IUPAC Name	sodium;4-[2-(2-oxonaphthalen-1-ylidene)hydrazinyl]benzenesulfonate
InChI Key	IGQFKZCLTLAWLO-UHFFFAOYSA-M
Molecular Formula	C16H11N2NaO4S

449

Thermo Scientific Chemicals Phenol Red, ACS reagent

CAS: 143-74-8 Molecular Formula: C19H14O5S Molecular Weight (g/mol): 354.38 MDL Number: MFCD00003552 InChI Key: BELBBZDIHDAJOR-UHFFFAOYSA-N Synonym: Phenolsulfonephthalein PubChem CID: 4766 ChEBI: CHEBI:31991 SMILES: OC1=CC=C(C=C1)C1(OS(=O)(=O)C2=CC=CC=C12)C1=CC=C(O)C=C1

Pricing & Availability
Specifications

PubChem CID	4766
CAS	143-74-8
Molecular Weight (g/mol)	354.38
ChEBI	CHEBI:31991
MDL Number	MFCD00003552
SMILES	OC1=CC=C(C=C1)C1(OS(=O)(=O)C2=CC=CC=C12)C1=CC=C(O)C=C1
Synonym	Phenolsulfonephthalein
InChI Key	BELBBZDIHDAJOR-UHFFFAOYSA-N
Molecular Formula	C19H14O5S

450

Thermo Scientific Chemicals Fast Blue BB salt

CAS: 5486-84-0 Molecular Formula: C34H36Cl4N6O6Zn Molecular Weight (g/mol): 831.878 MDL Number: MFCD00074765 InChI Key: CMFRFQODFZBKTI-UHFFFAOYSA-L Synonym: 4-Benzamido-2,5-diethoxybenzene diazonium chloride hemi zinc salt; C.I. 37175 PubChem CID: 131675364 IUPAC Name: zinc;N-(4-diazonio-2,5-diethoxyphenyl)benzenecarboximidate;dichloride;dihydrochloride SMILES: CCOC1=CC(=C(C=C1N=C(C2=CC=CC=C2)[O-])OCC)[N+]#N.CCOC1=CC(=C(C=C1N=C(C2=CC=CC=C2)[O-])OCC)[N+]#N.Cl.Cl.[Cl-].[Cl-].[Zn+2]

Pricing & Availability
Specifications

PubChem CID	131675364
CAS	5486-84-0
Molecular Weight (g/mol)	831.878
MDL Number	MFCD00074765
SMILES	CCOC1=CC(=C(C=C1N=C(C2=CC=CC=C2)[O-])OCC)[N+]#N.CCOC1=CC(=C(C=C1N=C(C2=CC=CC=C2)[O-])OCC)[N+]#N.Cl.Cl.[Cl-].[Cl-].[Zn+2]
Synonym	4-Benzamido-2,5-diethoxybenzene diazonium chloride hemi zinc salt; C.I. 37175
IUPAC Name	zinc;N-(4-diazonio-2,5-diethoxyphenyl)benzenecarboximidate;dichloride;dihydrochloride
InChI Key	CMFRFQODFZBKTI-UHFFFAOYSA-L
Molecular Formula	C34H36Cl4N6O6Zn

Stains and Dyes

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Allura Red AC, TCI America™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Thymol Blue Indicator, 0.04% (w/v), Ricca Chemical Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Thermo Scientific™ Remel™ TB Malachite Green Counterstain GSA/VA ContractAvailable on GSA/VA contract for Federal Government customers.Learn More

Allura Red AC, TCI America™

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

Thermo Scientific™ Remel™ TB Malachite Green Counterstain