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 908 results

Pro-Lab Diagnostics™ Lugol’s Iodine Stain

Use for convenient Gram staining to easily identify gram positive or negative organisms. Pro-Lab Diagnostics™ Lugol’s Iodine Stain is a ready-to-use microbiological stain manufactured to the highest standards, according to all current regulatory requirements, and CE labelled.

Pricing and Availability

Pro-Lab Diagnostics™ Gram's Iodine Solution

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

Pricing and Availability
Specifications

Composition	Ethanol
Type	Gram Iodine
Format	Liquid
Stain Type	Gram Stain
Color	Dark brown
Certifications/Compliance	(EC) No 1907/2006, Annex II, (EU) No 453/2010, CE-mark
For Use With (Application)	For Gram staining
Solution Type	Reagent

Thermo Scientific Chemicals Phenolphthalein, ACS

CAS: 77-09-8 Molecular Formula: C20H14O4 Molecular Weight (g/mol): 318.33 MDL Number: MFCD00005913 InChI Key: KJFMBFZCATUALV-UHFFFAOYSA-N PubChem CID: 4764 ChEBI: CHEBI:34914 IUPAC Name: 3,3-bis(4-hydroxyphenyl)-2-benzofuran-1-one SMILES: OC1=CC=C(C=C1)C1(OC(=O)C2=CC=CC=C12)C1=CC=C(O)C=C1

Pricing and Availability
Specifications

PubChem CID	4764
CAS	77-09-8
Molecular Weight (g/mol)	318.33
ChEBI	CHEBI:34914
MDL Number	MFCD00005913
SMILES	OC1=CC=C(C=C1)C1(OC(=O)C2=CC=CC=C12)C1=CC=C(O)C=C1
IUPAC Name	3,3-bis(4-hydroxyphenyl)-2-benzofuran-1-one
InChI Key	KJFMBFZCATUALV-UHFFFAOYSA-N
Molecular Formula	C20H14O4

Thermo Scientific Chemicals Methylene Blue, pure, certified

CAS: 7220-79-3 Molecular Formula: C16H24ClN3O3S Molecular Weight (g/mol): 373.90 MDL Number: MFCD00150008 InChI Key: XQAXGZLFSSPBMK-UHFFFAOYSA-M Synonym: Basic Blue 9 PubChem CID: 6099 ChEBI: CHEBI:6872 IUPAC Name: [7-(dimethylamino)phenothiazin-3-ylidene]-dimethylazanium;chloride SMILES: O.O.O.[Cl-].CN(C)C1=CC2=[S+]C3=CC(=CC=C3N=C2C=C1)N(C)C

Pricing and Availability
Specifications

PubChem CID	6099
CAS	7220-79-3
Molecular Weight (g/mol)	373.90
ChEBI	CHEBI:6872
MDL Number	MFCD00150008
SMILES	O.O.O.[Cl-].CN(C)C1=CC2=[S+]C3=CC(=CC=C3N=C2C=C1)N(C)C
Synonym	Basic Blue 9
IUPAC Name	[7-(dimethylamino)phenothiazin-3-ylidene]-dimethylazanium;chloride
InChI Key	XQAXGZLFSSPBMK-UHFFFAOYSA-M
Molecular Formula	C16H24ClN3O3S

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

Pricing and Availability
Specifications

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 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

Pricing and Availability
Specifications

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 Bromophenol Blue, Indicator, Pure

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$l^{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

Pricing and Availability
Specifications

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$l^{6}-benzoxathiol-3-yl]phenol
InChI Key	UDSAIICHUKSCKT-UHFFFAOYSA-N
Molecular Formula	C19H10Br4O5S

Thermo Scientific Chemicals Crystal Violet

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-]

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Pricing and 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

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: Bromphenol Blue PubChem CID: 8272 ChEBI: CHEBI:59424 IUPAC Name: 2,6-dibromo-4-[3-(3,5-dibromo-4-hydroxyphenyl)-1,1-dioxo-2,1$l^{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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Pricing and Availability
Specifications

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	Bromphenol Blue
IUPAC Name	2,6-dibromo-4-[3-(3,5-dibromo-4-hydroxyphenyl)-1,1-dioxo-2,1$l^{6}-benzoxathiol-3-yl]phenol
InChI Key	UDSAIICHUKSCKT-UHFFFAOYSA-N
Molecular Formula	C19H10Br4O5S

Thermo Scientific Chemicals Fast Green FCF

CAS: 2353-45-9 Molecular Formula: C37H34N2Na2O10S3 Molecular Weight (g/mol): 808.84 MDL Number: MFCD00013053 InChI Key: XJBPDZVCYTYRIN-UHFFFAOYSA-L Synonym: C.I. 42053 PubChem CID: 16887 IUPAC Name: disodium;2-[[4-[ethyl-[(3-sulfonatophenyl)methyl]amino]phenyl]-[4-[ethyl-[(3-sulfonatophenyl)methyl]azaniumylidene]cyclohexa-2,5-dien-1-ylidene]methyl]-5-hydroxybenzenesulfonate SMILES: [Na+].[Na+].CCN(CC1=CC=CC(=C1)S([O-])(=O)=O)C1=CC=C(C=C1)[C+](C1=CC=C(C=C1)N(CC)CC1=CC=CC(=C1)S([O-])(=O)=O)C1=CC=C(O)C=C1S([O-])(=O)=O

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Specifications

PubChem CID	16887
CAS	2353-45-9
Molecular Weight (g/mol)	808.84
MDL Number	MFCD00013053
SMILES	[Na+].[Na+].CCN(CC1=CC=CC(=C1)S([O-])(=O)=O)C1=CC=C(C=C1)[C+](C1=CC=C(C=C1)N(CC)CC1=CC=CC(=C1)S([O-])(=O)=O)C1=CC=C(O)C=C1S([O-])(=O)=O
Synonym	C.I. 42053
IUPAC Name	disodium;2-[[4-[ethyl-[(3-sulfonatophenyl)methyl]amino]phenyl]-[4-[ethyl-[(3-sulfonatophenyl)methyl]azaniumylidene]cyclohexa-2,5-dien-1-ylidene]methyl]-5-hydroxybenzenesulfonate
InChI Key	XJBPDZVCYTYRIN-UHFFFAOYSA-L
Molecular Formula	C37H34N2Na2O10S3

Thermo Scientific Chemicals Alizarin Red S, pure, certified

CAS: 130-22-3 Molecular Formula: C14H7NaO7S Molecular Weight (g/mol): 342.253 MDL Number: MFCD00013049 InChI Key: HFVAFDPGUJEFBQ-UHFFFAOYSA-M Synonym: 9,10-Dihydro-3,4-dihydroxy-9,10-dioxo-2-anthracenesulfonic acid, sodium salt,9, 10-Dihydro-3, 4-dihydroxy-9,Mordant Red 3,Sodium alizarinesulfonate PubChem CID: 3955344 ChEBI: CHEBI:87358 IUPAC Name: sodium;3,4-dihydroxy-9,10-dioxoanthracene-2-sulfonate SMILES: C1=CC=C2C(=C1)C(=O)C3=CC(=C(C(=C3C2=O)O)O)S(=O)(=O)[O-].[Na+]

Pricing and Availability
Specifications

PubChem CID	3955344
CAS	130-22-3
Molecular Weight (g/mol)	342.253
ChEBI	CHEBI:87358
MDL Number	MFCD00013049
SMILES	C1=CC=C2C(=C1)C(=O)C3=CC(=C(C(=C3C2=O)O)O)S(=O)(=O)[O-].[Na+]
Synonym	9,10-Dihydro-3,4-dihydroxy-9,10-dioxo-2-anthracenesulfonic acid, sodium salt,9, 10-Dihydro-3, 4-dihydroxy-9,Mordant Red 3,Sodium alizarinesulfonate
IUPAC Name	sodium;3,4-dihydroxy-9,10-dioxoanthracene-2-sulfonate
InChI Key	HFVAFDPGUJEFBQ-UHFFFAOYSA-M
Molecular Formula	C14H7NaO7S

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

Pricing and 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
InChI Key	NMKFVGALBGZKGW-FKWCIMQXSA-M
Molecular Formula	C27H27Br2NaO5S

Thermo Scientific Chemicals Field's Stain A

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Specifications

Product Type	Stain

Thermo Scientific Chemicals Janus Green B

CAS: 2869-83-2 Molecular Formula: C30H31ClN6 Molecular Weight (g/mol): 511.07 MDL Number: MFCD00011758 InChI Key: XXACTDWGHQXLGW-UHFFFAOYSA-M Synonym: C.I. 11050 PubChem CID: 76123 ChEBI: CHEBI:21184 IUPAC Name: 8-[[4-(dimethylamino)phenyl]diazenyl]-N,N-diethyl-10-phenylphenazin-10-ium-2-amine;chloride SMILES: [Cl-].CCN(CC)C1=CC=C2N=C3C=CC(=CC3=[N+](C3=CC=CC=C3)C2=C1)N=NC1=CC=C(C=C1)N(C)C

Pricing and Availability
Specifications

PubChem CID	76123
CAS	2869-83-2
Molecular Weight (g/mol)	511.07
ChEBI	CHEBI:21184
MDL Number	MFCD00011758
SMILES	[Cl-].CCN(CC)C1=CC=C2N=C3C=CC(=CC3=[N+](C3=CC=CC=C3)C2=C1)N=NC1=CC=C(C=C1)N(C)C
Synonym	C.I. 11050
IUPAC Name	8-[[4-(dimethylamino)phenyl]diazenyl]-N,N-diethyl-10-phenylphenazin-10-ium-2-amine;chloride
InChI Key	XXACTDWGHQXLGW-UHFFFAOYSA-M
Molecular Formula	C30H31ClN6

Thermo Scientific Chemicals Field's Stain B

CAS: 17372-87-1

Pricing and Availability
Specifications

CAS	17372-87-1

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