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.

376 – 390 of 6,411 results

376

Calmagite Indicator, 0.1% Aqueous, for Hardness, Certified, LabChem™

CAS: 3147-14-6 Molecular Formula: C17H14N2O5S Molecular Weight (g/mol): 358.368 InChI Key: ASFVMSDYPYMUFL-UHFFFAOYSA-N PubChem CID: 6364506 IUPAC Name: 4-[(2-hydroxy-5-methylphenyl)hydrazinylidene]-3-oxonaphthalene-1-sulfonic acid SMILES: CC1=CC(=C(C=C1)O)NN=C2C3=CC=CC=C3C(=CC2=O)S(=O)(=O)O

Pricing & Availability
Specifications

PubChem CID	6364506
CAS	3147-14-6
Molecular Weight (g/mol)	358.368
SMILES	CC1=CC(=C(C=C1)O)NN=C2C3=CC=CC=C3C(=CC2=O)S(=O)(=O)O
IUPAC Name	4-[(2-hydroxy-5-methylphenyl)hydrazinylidene]-3-oxonaphthalene-1-sulfonic acid
InChI Key	ASFVMSDYPYMUFL-UHFFFAOYSA-N
Molecular Formula	C17H14N2O5S

377

Thermo Scientific Chemicals Methyl Orange, 0.1% w/v aq. soln.

CAS: 547-58-0 Molecular Formula: C14H14N3NaO3S Molecular Weight (g/mol): 327.334 MDL Number: MFCD00007502 InChI Key: STZCRXQWRGQSJD-UHFFFAOYSA-M PubChem CID: 23673835 IUPAC Name: sodium;4-[[4-(dimethylamino)phenyl]diazenyl]benzenesulfonate SMILES: CN(C)C1=CC=C(C=C1)N=NC2=CC=C(C=C2)S(=O)(=O)[O-].[Na+]

Pricing & Availability
Specifications

PubChem CID	23673835
CAS	547-58-0
Molecular Weight (g/mol)	327.334
MDL Number	MFCD00007502
SMILES	CN(C)C1=CC=C(C=C1)N=NC2=CC=C(C=C2)S(=O)(=O)[O-].[Na+]
IUPAC Name	sodium;4-[[4-(dimethylamino)phenyl]diazenyl]benzenesulfonate
InChI Key	STZCRXQWRGQSJD-UHFFFAOYSA-M
Molecular Formula	C14H14N3NaO3S

378

Thermo Scientific Chemicals Brilliant Blue G, ultrapure

CAS: 6104-58-1 Molecular Formula: C47H48N3NaO7S2 Molecular Weight (g/mol): 854.025 MDL Number: MFCD00078482 InChI Key: RWVGQQGBQSJDQV-UHFFFAOYSA-M Synonym: Coomassie Brilliant Blue G 250; C.I. 42655 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+]

Pricing & Availability
Specifications

PubChem CID	6328534
CAS	6104-58-1
Molecular Weight (g/mol)	854.025
MDL Number	MFCD00078482
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+]
Synonym	Coomassie Brilliant Blue G 250; C.I. 42655
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
InChI Key	RWVGQQGBQSJDQV-UHFFFAOYSA-M
Molecular Formula	C47H48N3NaO7S2

379

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

Pricing & Availability
Specifications

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

380

Thermo Scientific Chemicals Methyl Violet 2B

CAS: 8004-87-3 Molecular Formula: C₂₄H₂₇N₃·HCl MDL Number: MFCD00012568 Synonym: Basic Violet 1; C.I. 42535

Pricing & Availability
Specifications

CAS	8004-87-3
MDL Number	MFCD00012568
Synonym	Basic Violet 1; C.I. 42535
Molecular Formula	C₂₄H₂₇N₃·HCl

381

Thermo Scientific Chemicals India Ink soln., 0.2% in PBS buffer

India ink is a simple black ink. Previously it has been used for writing and printing and is now commonly used for drawing in comic books and comic strips.

Pricing & Availability
Specifications

Format	Liquid
Form	Liquid

382

Thermo Scientific Chemicals Crystal Violet, pure, high purity biological stain

CAS: 548-62-9 | C25H30ClN3 | 407.986 g/mol

Pricing & Availability
Specifications

Molecular Weight (g/mol)	407.986
ChEBI	CHEBI:41688
InChI Key	ZXJXZNDDNMQXFV-UHFFFAOYSA-M
PubChem CID	11057
Percent Purity	≥96.0% (TiCl3-titration) (on dried substance)
Infrared Spectrum	Authentic
RTECS Number	BO9000000
Formula Weight	407.99
Melting Point	215.0°C
Color	Green
Loss on Drying	9% max. (110°C)
Physical Form	Powder or Crystals
Chemical Name or Material	Crystal Violet
Grade	Pure
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-]
Merck Index	15, 4430
CAS	90-94-8
Health Hazard 3	GHS P Statement: Wear protective gloves/protective clothing/eye protection/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Avoid release to the environment. Obtain special instructions before use. IF exposed or concerned: Get medical advice/attention. Do not eat, drink or smoke when using this product. 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.
MDL Number	MFCD00011750
Health Hazard 2	GHS H Statement: Very toxic to aquatic life with long lasting effects. Harmful if swallowed. Causes serious eye damage. May cause cancer.
Packaging	Glass bottle
Solubility Information	Solubility in water: 16g/L (25°C). Other solubilities: soluble in chloroform, 1 g/10 mL alcohol, 1 g/15 mL glycerin, practically insoluble in ether
Health Hazard 1	Danger
Synonym	Basic Violet 3,C.I. 42555,Gentian Violet
TSCA	TSCA
IUPAC Name	[4-[bis[4-(dimethylamino)phenyl]methylidene]cyclohexa-2,5-dien-1-ylidene]-dimethylazanium;chloride
Beilstein	13, 756
Molecular Formula	C25H30ClN3
EINECS Number	208-953-6

383

Congo Red Indicator, 0.1% (w/v), Ricca Chemical

Pricing & Availability
Specifications

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

384

Acid Blue 9, TCI America™

CAS: 3844-45-9 Molecular Formula: C37H34N2Na2O9S3 Molecular Weight (g/mol): 792.844 MDL Number: MFCD00012141 InChI Key: SGHZXLIDFTYFHQ-UHFFFAOYSA-L Synonym: Brilliant Blue FCF, Erioglaucin A PubChem CID: 19700 ChEBI: CHEBI:82411 IUPAC Name: disodium;2-[[4-[ethyl-[(3-sulfonatophenyl)methyl]amino]phenyl]-[4-[ethyl-[(3-sulfonatophenyl)methyl]azaniumylidene]cyclohexa-2,5-dien-1-ylidene]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=C3)C5=CC=CC=C5S(=O)(=O)[O-].[Na+].[Na+]

Pricing & Availability
Specifications

PubChem CID	19700
CAS	3844-45-9
Molecular Weight (g/mol)	792.844
ChEBI	CHEBI:82411
MDL Number	MFCD00012141
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=C3)C5=CC=CC=C5S(=O)(=O)[O-].[Na+].[Na+]
Synonym	Brilliant Blue FCF, Erioglaucin A
IUPAC Name	disodium;2-[[4-[ethyl-[(3-sulfonatophenyl)methyl]amino]phenyl]-[4-[ethyl-[(3-sulfonatophenyl)methyl]azaniumylidene]cyclohexa-2,5-dien-1-ylidene]methyl]benzenesulfonate
InChI Key	SGHZXLIDFTYFHQ-UHFFFAOYSA-L
Molecular Formula	C37H34N2Na2O9S3

385

Thermo Scientific Chemicals Fluoresceinamine isomer I, pure

CAS: 3326-34-9 Molecular Formula: C20H13NO5 Molecular Weight (g/mol): 347.33 MDL Number: MFCD00005052 InChI Key: GZAJOEGTZDUSKS-UHFFFAOYSA-N Synonym: 5-Aminofluorescein PubChem CID: 76845 IUPAC Name: 6-amino-3',6'-dihydroxyspiro[2-benzofuran-3,9'-xanthene]-1-one SMILES: NC1=CC=C2C(=C1)C(=O)OC21C2=CC=C(O)C=C2OC2=CC(O)=CC=C12

Pricing & Availability
Specifications

PubChem CID	76845
CAS	3326-34-9
Molecular Weight (g/mol)	347.33
MDL Number	MFCD00005052
SMILES	NC1=CC=C2C(=C1)C(=O)OC21C2=CC=C(O)C=C2OC2=CC(O)=CC=C12
Synonym	5-Aminofluorescein
IUPAC Name	6-amino-3',6'-dihydroxyspiro[2-benzofuran-3,9'-xanthene]-1-one
InChI Key	GZAJOEGTZDUSKS-UHFFFAOYSA-N
Molecular Formula	C20H13NO5

386

Fluorescamine, pure

CAS: 38183-12-9 Molecular Formula: C17H10O4 Molecular Weight (g/mol): 278.26 MDL Number: MFCD00005928 InChI Key: ZFKJVJIDPQDDFY-UHFFFAOYNA-N PubChem CID: 37927 IUPAC Name: 4'-phenylspiro[2-benzofuran-3,2'-furan]-1,3'-dione SMILES: O=C1OC2(OC=C(C2=O)C2=CC=CC=C2)C2=CC=CC=C12

Pricing & Availability
Specifications

PubChem CID	37927
CAS	38183-12-9
Molecular Weight (g/mol)	278.26
MDL Number	MFCD00005928
SMILES	O=C1OC2(OC=C(C2=O)C2=CC=CC=C2)C2=CC=CC=C12
IUPAC Name	4'-phenylspiro[2-benzofuran-3,2'-furan]-1,3'-dione
InChI Key	ZFKJVJIDPQDDFY-UHFFFAOYNA-N
Molecular Formula	C17H10O4

387

Thermo Scientific Chemicals Neutral Red

CAS: 553-24-2 Molecular Formula: C15H17ClN4 Molecular Weight (g/mol): 288.779 MDL Number: MFCD00012651 InChI Key: PGSADBUBUOPOJS-UHFFFAOYSA-N Synonym: Basic Red 5; C.I. 50040 PubChem CID: 11105 ChEBI: CHEBI:86370 IUPAC Name: 8-N,8-N,3-trimethylphenazine-2,8-diamine;hydrochloride SMILES: CC1=CC2=NC3=C(C=C(C=C3)N(C)C)N=C2C=C1N.Cl

Pricing & Availability
Specifications

PubChem CID	11105
CAS	553-24-2
Molecular Weight (g/mol)	288.779
ChEBI	CHEBI:86370
MDL Number	MFCD00012651
SMILES	CC1=CC2=NC3=C(C=C(C=C3)N(C)C)N=C2C=C1N.Cl
Synonym	Basic Red 5; C.I. 50040
IUPAC Name	8-N,8-N,3-trimethylphenazine-2,8-diamine;hydrochloride
InChI Key	PGSADBUBUOPOJS-UHFFFAOYSA-N
Molecular Formula	C15H17ClN4

388

Thermo Scientific Chemicals Methyl Violet 2B, pure, indicator grade

CAS: 8004-87-3 Molecular Formula: C₂₄H₂₈ClN₃ MDL Number: MFCD00012568 Synonym: Basic Violet 1,C.I. 42535

Pricing & Availability
Specifications

CAS	8004-87-3
MDL Number	MFCD00012568
Synonym	Basic Violet 1,C.I. 42535
Molecular Formula	C₂₄H₂₈ClN₃

389

Thermo Scientific Chemicals Thymol Blue sodium salt

CAS: 62625-21-2 Molecular Formula: C27H29NaO5S Molecular Weight (g/mol): 488.57 MDL Number: MFCD00151093 InChI Key: OCMIKNBSIRSUPI-FRWNMSGJSA-M Synonym: Thymol Blue, water soluble PubChem CID: 23692293 IUPAC Name: sodium;4-[3-(4-hydroxy-2-methyl-5-propan-2-ylphenyl)-1,1-dioxo-2,1$l^{6}-benzoxathiol-3-yl]-5-methyl-2-propan-2-ylphenolate 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	Thymol Blue, water soluble
IUPAC Name	sodium;4-[3-(4-hydroxy-2-methyl-5-propan-2-ylphenyl)-1,1-dioxo-2,1$l^{6}-benzoxathiol-3-yl]-5-methyl-2-propan-2-ylphenolate
InChI Key	OCMIKNBSIRSUPI-FRWNMSGJSA-M
Molecular Formula	C27H29NaO5S

390

Thermo Scientific Chemicals Tropaeolin O

CAS: 547-57-9 Molecular Formula: C12H10N2NaO5S Molecular Weight (g/mol): 317.271 MDL Number: MFCD00007499 InChI Key: YOGUPPQYRWYKGT-IRIIKGHASA-N Synonym: Acid Orange 6; C.I. 14270 PubChem CID: 87071197 IUPAC Name: 4-[(2Z)-2-(2-hydroxy-4-oxocyclohexa-2,5-dien-1-ylidene)hydrazinyl]benzenesulfonic acid;sodium SMILES: C1=CC(=CC=C1NN=C2C=CC(=O)C=C2O)S(=O)(=O)O.[Na]

Pricing & Availability
Specifications

PubChem CID	87071197
CAS	547-57-9
Molecular Weight (g/mol)	317.271
MDL Number	MFCD00007499
SMILES	C1=CC(=CC=C1NN=C2C=CC(=O)C=C2O)S(=O)(=O)O.[Na]
Synonym	Acid Orange 6; C.I. 14270
IUPAC Name	4-[(2Z)-2-(2-hydroxy-4-oxocyclohexa-2,5-dien-1-ylidene)hydrazinyl]benzenesulfonic acid;sodium
InChI Key	YOGUPPQYRWYKGT-IRIIKGHASA-N
Molecular Formula	C12H10N2NaO5S

Stains and Dyes

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Congo Red Indicator, 0.1% (w/v), Ricca Chemical Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Acid Blue 9, TCI America™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Congo Red Indicator, 0.1% (w/v), Ricca Chemical

Acid Blue 9, TCI America™