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.

1 – 15 of 1,007 results

Thermo Scientific Chemicals Azur eosin methylene-blue, pure, solution according to Giemsa

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Lambda Max	523 to 526nm (c=0.1, MeOH) (eosine), 646 to 651nm (c=0.1, MeOH) (methylene blue)
CAS	67-56-1
Health Hazard 3	GHS P Statement: Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Do not breathe dust/fume/gas/mist/vapors/spray. Wear protective gloves/protective clothing/eye protection/face protection. IF exposed: Call a POISON CENTER or doctor/physician. WARNING: The information provided on this web site was developed in compliance with European Union (EU) regulations and is correct to the best of our knowledge, information and belief at the date of its publication. The information given is designed only as a guide for safe handling and use. It is not to be considered as either a warranty or quality specification.
Color	Blue
MDL Number	MFCD00081642
Health Hazard 2	GHS H Statement: Highly flammable liquid and vapor. Toxic if inhaled. Toxic in contact with skin. Toxic if swallowed.
Physical Form	Solution
Packaging	Glass bottle
Health Hazard 1	Danger
Chemical Name or Material	Azur eosin methylene-blue
Grade	Pure

Thermo Scientific Chemicals Patent Blue VF, pure, indicator grade

CAS: 129-17-9 Molecular Formula: C27H31N2NaO6S2 Molecular Weight (g/mol): 566.66 MDL Number: MFCD00012119 InChI Key: SJEYSFABYSGQBG-UHFFFAOYSA-M Synonym: Acid Blue 1,C.I. 42045,αzurine 2G,Sulphan blue PubChem CID: 8507 ChEBI: CHEBI:34906 IUPAC Name: sodium;4-[[4-(diethylamino)phenyl]-(4-diethylazaniumylidenecyclohexa-2,5-dien-1-ylidene)methyl]benzene-1,3-disulfonate SMILES: [Na+].CCN(CC)C1=CC=C(C=C1)[C+](C1=CC=C(C=C1)N(CC)CC)C1=CC=C(C=C1S([O-])(=O)=O)S([O-])(=O)=O

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PubChem CID	8507
CAS	129-17-9
Molecular Weight (g/mol)	566.66
ChEBI	CHEBI:34906
MDL Number	MFCD00012119
SMILES	[Na+].CCN(CC)C1=CC=C(C=C1)[C+](C1=CC=C(C=C1)N(CC)CC)C1=CC=C(C=C1S([O-])(=O)=O)S([O-])(=O)=O
Synonym	Acid Blue 1,C.I. 42045,αzurine 2G,Sulphan blue
IUPAC Name	sodium;4-[[4-(diethylamino)phenyl]-(4-diethylazaniumylidenecyclohexa-2,5-dien-1-ylidene)methyl]benzene-1,3-disulfonate
InChI Key	SJEYSFABYSGQBG-UHFFFAOYSA-M
Molecular Formula	C27H31N2NaO6S2

Thermo Scientific Chemicals Rhodamine B, 98+%

CAS: 81-88-9 Molecular Formula: C28H31ClN2O3 Molecular Weight (g/mol): 479.02 MDL Number: MFCD00011931 InChI Key: PYWVYCXTNDRMGF-UHFFFAOYSA-N Synonym: Basic Violet 10,C.I. 45170 PubChem CID: 6694 ChEBI: CHEBI:52334 IUPAC Name: [9-(2-carboxyphenyl)-6-(diethylamino)xanthen-3-ylidene]-diethylazanium;chloride SMILES: [Cl-].CCN(CC)C1=CC2=[O+]C3=CC(=CC=C3C(C3=CC=CC=C3C(O)=O)=C2C=C1)N(CC)CC

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PubChem CID	6694
CAS	81-88-9
Molecular Weight (g/mol)	479.02
ChEBI	CHEBI:52334
MDL Number	MFCD00011931
SMILES	[Cl-].CCN(CC)C1=CC2=[O+]C3=CC(=CC=C3C(C3=CC=CC=C3C(O)=O)=C2C=C1)N(CC)CC
Synonym	Basic Violet 10,C.I. 45170
IUPAC Name	[9-(2-carboxyphenyl)-6-(diethylamino)xanthen-3-ylidene]-diethylazanium;chloride
InChI Key	PYWVYCXTNDRMGF-UHFFFAOYSA-N
Molecular Formula	C28H31ClN2O3

Thermo Scientific Chemicals Methyl blue

CAS: 28983-56-4 Molecular Formula: C37H26N3Na2O9S3 Molecular Weight (g/mol): 798.79 MDL Number: MFCD00058509 InChI Key: TUHAIJABPUJAEY-UHFFFAOYSA-K Synonym: Acid blue 93; C.I. 42780 PubChem CID: 76956083 SMILES: [Na+].[Na+].[O-]S(=O)(=O)C1=CC=CC=C1NC1=CC=C(C=C1)C(C1=CC=C(NC2=CC=CC=C2S([O-])(=O)=O)C=C1)=C1C=CC(C=C1)=NC1=CC=CC=C1S([O-])(=O)=O

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Specifications

PubChem CID	76956083
CAS	28983-56-4
Molecular Weight (g/mol)	798.79
MDL Number	MFCD00058509
SMILES	[Na+].[Na+].[O-]S(=O)(=O)C1=CC=CC=C1NC1=CC=C(C=C1)C(C1=CC=C(NC2=CC=CC=C2S([O-])(=O)=O)C=C1)=C1C=CC(C=C1)=NC1=CC=CC=C1S([O-])(=O)=O
Synonym	Acid blue 93; C.I. 42780
InChI Key	TUHAIJABPUJAEY-UHFFFAOYSA-K
Molecular Formula	C37H26N3Na2O9S3

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

Thermo Scientific™ Remel™ Gram Crystal Violet

Thermo Scientific™ Remel Gram Crystal Violet is a primary stain in Gram stain procedures.

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Specifications

Type	Crystal Violet
Certifications/Compliance	CE Marked

Thermo Scientific Chemicals Luxol Fast Blue MBSN, pure

CAS: 1328-51-4 Molecular Formula: C32H14CuN8Na2O6S2 Molecular Weight (g/mol): 780.16 MDL Number: MFCD00071424 InChI Key: DKBXPLYSDKSFEQ-UHFFFAOYSA-L Synonym: Solvent Blue 38 PubChem CID: 92030797 SMILES: C1=CC=C2C(=C1)C3=NC4=C5C=CC=CC5=C([N-]4)N=C6C7=C(C=CC=C7S(=O)(=O)[O-])C(=N6)N=C8C9=C(C(=CC=C9)S(=O)(=O)[O-])C(=N8)N=C2[N-]3.[Na+].[Na+].[Cu+2]

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PubChem CID	92030797
CAS	1328-51-4
Molecular Weight (g/mol)	780.16
MDL Number	MFCD00071424
SMILES	C1=CC=C2C(=C1)C3=NC4=C5C=CC=CC5=C([N-]4)N=C6C7=C(C=CC=C7S(=O)(=O)[O-])C(=N6)N=C8C9=C(C(=CC=C9)S(=O)(=O)[O-])C(=N8)N=C2[N-]3.[Na+].[Na+].[Cu+2]
Synonym	Solvent Blue 38
InChI Key	DKBXPLYSDKSFEQ-UHFFFAOYSA-L
Molecular Formula	C32H14CuN8Na2O6S2

Thermo Scientific Chemicals Methylene Blue, 1% w/v aq. soln.

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Concentration or Composition (by Analyte or Components)	3, 7-Bis(dimethylamino)phenothiazin-5-ium chloride hydrate: 1.0%; Water: 99%
CAS	7732-18-5
MDL Number	MFCD00012111
Physical Form	Liquid
Solubility Information	Miscible with ethanol,chloroform,glacial acetic acid and glycerol. Slightly miscible with pyridine. Immiscible with ethyl ether,xylene,oleic acid,ethanol and acetone.
Chemical Name or Material	Methylene Blue
TSCA	Yes
Recommended Storage	Ambient temperatures
Molecular Formula	C₁₆H₁₈ClN₃S
Formula Weight	319.86
Vapor Pressure	23 hPa (17mm Hg) at 20°C
Assay Percent Range	1% w/v aqueous solution

Thermo Scientific Chemicals Methylene Blue, high purity, biological stain

CAS: 122965-43-9 Molecular Formula: C16H18ClN3S Molecular Weight (g/mol): 319.85 MDL Number: MFCD00150006 InChI Key: CXKWCBBOMKCUKX-UHFFFAOYSA-M Synonym: Basic Blue 9; C.I. 52015 PubChem CID: 16211647 IUPAC Name: [7-(dimethylamino)phenothiazin-3-ylidene]-dimethylazanium;chloride;hydrate SMILES: [Cl-].CN(C)C1=CC=C2N=C3C=CC(C=C3SC2=C1)=[N+](C)C

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PubChem CID	16211647
CAS	122965-43-9
Molecular Weight (g/mol)	319.85
MDL Number	MFCD00150006
SMILES	[Cl-].CN(C)C1=CC=C2N=C3C=CC(C=C3SC2=C1)=[N+](C)C
Synonym	Basic Blue 9; C.I. 52015
IUPAC Name	[7-(dimethylamino)phenothiazin-3-ylidene]-dimethylazanium;chloride;hydrate
InChI Key	CXKWCBBOMKCUKX-UHFFFAOYSA-M
Molecular Formula	C16H18ClN3S

Thermo Scientific Chemicals Fluorescein, disodium salt, pure

CAS: 518-47-8 Molecular Formula: C20H10Na2O5 Molecular Weight (g/mol): 376.28 MDL Number: MFCD00167039 InChI Key: NJDNXYGOVLYJHP-UHFFFAOYSA-L IUPAC Name: disodium 2-(6-oxido-3-oxo-3H-xanthen-9-yl)benzoate SMILES: [Na+].[Na+].[O-]C(=O)C1=CC=CC=C1C1=C2C=CC(=O)C=C2OC2=CC([O-])=CC=C12

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CAS	518-47-8
Molecular Weight (g/mol)	376.28
MDL Number	MFCD00167039
SMILES	[Na+].[Na+].[O-]C(=O)C1=CC=CC=C1C1=C2C=CC(=O)C=C2OC2=CC([O-])=CC=C12
IUPAC Name	disodium 2-(6-oxido-3-oxo-3H-xanthen-9-yl)benzoate
InChI Key	NJDNXYGOVLYJHP-UHFFFAOYSA-L
Molecular Formula	C20H10Na2O5

Thermo Scientific Chemicals Bromophenol Blue

CAS: 115-39-9 Molecular Formula: C19H10Br4O5S Molecular Weight (g/mol): 669.96 MDL Number: MFCD00005875 InChI Key: UDSAIICHUKSCKT-UHFFFAOYSA-N Synonym: 3',3'',5',5''-Tetrabromophenolsulfonephthalein,BPB,3', 3'', 5' PubChem CID: 8272 ChEBI: CHEBI:59424 IUPAC Name: 2,6-dibromo-4-[3-(3,5-dibromo-4-hydroxyphenyl)-1,1-dioxo-2,1,lambda{6}-benzoxathiol-3-yl]phenol SMILES: C1=CC=C2C(=C1)C(OS2(=O)=O)(C3=CC(=C(C(=C3)Br)O)Br)C4=CC(=C(C(=C4)Br)O)Br

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PubChem CID	8272
CAS	115-39-9
Molecular Weight (g/mol)	669.96
ChEBI	CHEBI:59424
MDL Number	MFCD00005875
SMILES	C1=CC=C2C(=C1)C(OS2(=O)=O)(C3=CC(=C(C(=C3)Br)O)Br)C4=CC(=C(C(=C4)Br)O)Br
Synonym	3',3'',5',5''-Tetrabromophenolsulfonephthalein,BPB,3', 3'', 5'
IUPAC Name	2,6-dibromo-4-[3-(3,5-dibromo-4-hydroxyphenyl)-1,1-dioxo-2,1,lambda{6}-benzoxathiol-3-yl]phenol
InChI Key	UDSAIICHUKSCKT-UHFFFAOYSA-N
Molecular Formula	C19H10Br4O5S

Thermo Scientific Chemicals Bromocresol Green

CAS: 76-60-8 Molecular Formula: C21H14Br4O5S Molecular Weight (g/mol): 698.014 MDL Number: MFCD00005874 InChI Key: FRPHFZCDPYBUAU-UHFFFAOYSA-N Synonym: Bromcresol Green 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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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	Bromcresol Green
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

Thermo Scientific Chemicals Eriochrome™ Black T, pure, indicator grade

CAS: 1787-61-7 Molecular Formula: C20H12N3NaO7S Molecular Weight (g/mol): 461.38 MDL Number: MFCD00003935 InChI Key: JHUJLRKQZAPSDP-GXTSIBQPSA-M Synonym: C.I. 14645,3-Hydroxy-4-(1-hydroxy-2-naphthylazo)-7-nitro-1-naphthalene sulfonic acid, sodium salt,Mordant Black 11 PubChem CID: 87355429 IUPAC Name: (4Z)-4-[(1-hydroxynaphthalen-2-yl)hydrazinylidene]-7-nitro-3-oxonaphthalene-1-sulfonic acid;sodium 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

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PubChem CID	87355429
CAS	1787-61-7
Molecular Weight (g/mol)	461.38
MDL Number	MFCD00003935
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	C.I. 14645,3-Hydroxy-4-(1-hydroxy-2-naphthylazo)-7-nitro-1-naphthalene sulfonic acid, sodium salt,Mordant Black 11
IUPAC Name	(4Z)-4-[(1-hydroxynaphthalen-2-yl)hydrazinylidene]-7-nitro-3-oxonaphthalene-1-sulfonic acid;sodium
InChI Key	JHUJLRKQZAPSDP-GXTSIBQPSA-M
Molecular Formula	C20H12N3NaO7S

Bromothymol Blue sodium salt, 0.04% w/v aqueous solution, Thermo Scientific Chemicals

CAS: 34722-90-2 Molecular Formula: C27H27Br2NaO5S Molecular Weight (g/mol): 646.37 MDL Number: MFCD00077263,MFCD00077263,MFCD00077263 InChI Key: NMKFVGALBGZKGW-FKWCIMQXSA-M PubChem CID: 102183223 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

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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
InChI Key	NMKFVGALBGZKGW-FKWCIMQXSA-M
Molecular Formula	C27H27Br2NaO5S

Pro-Lab Diagnostics™ Crystal Violet Solution

Use for convenient Gram staining of bacteria cells. Prolab Diagnostics™ Crystal Violet Solution concentrates are 10 times concentrated to give a ready to use stain on dilution.

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Specifications

Composition	Ethanol, C.I. basic violet 3, Methanol
Type	Crystal Violet
Format	Liquid
Stain Type	Gram Stain
Color	Dark violet
Storage Requirements	<20°C
Certifications/Compliance	(EC) No 1907/2006, Annex II, (EU) No 453/2010, CE-mark
For Use With (Application)	For Gram staining
Solution Type	Reagent

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