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.

271 – 285 of 6,701 results

271

Thermo Scientific Chemicals Cresol Red, sodium salt, pure, water soluble, indicator

CAS: 62625-29-0 Molecular Formula: C₂₁H₁₇NaO₅S MDL Number: MFCD00001618

Pricing & Availability
Specifications

CAS	62625-29-0
MDL Number	MFCD00001618
Molecular Formula	C₂₁H₁₇NaO₅S

272

Thermo Scientific Chemicals Methyl Orange, ACS reagent

CAS: 547-58-0 Molecular Formula: C14H14N3NaO3S Molecular Weight (g/mol): 327.334 MDL Number: MFCD00007502 InChI Key: STZCRXQWRGQSJD-UHFFFAOYSA-M Synonym: 4-[4-(Dimethylamino)phenylazo]benzenesulfonic acid, sodium salt,Acid Orange 52,C.I. 13025,MO,Helianthise 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+]
Synonym	4-[4-(Dimethylamino)phenylazo]benzenesulfonic acid, sodium salt,Acid Orange 52,C.I. 13025,MO,Helianthise
IUPAC Name	sodium;4-[[4-(dimethylamino)phenyl]diazenyl]benzenesulfonate
InChI Key	STZCRXQWRGQSJD-UHFFFAOYSA-M
Molecular Formula	C14H14N3NaO3S

273

Thermo Scientific Chemicals Litmus, pure, indicator grade

CAS: 1393-92-6 MDL Number: MFCD00131528

Pricing & Availability
Specifications

CAS	1393-92-6
MDL Number	MFCD00131528

274

Thermo Scientific Chemicals Erythrosin B, pure, certified

CAS: 16423-68-0 Molecular Formula: C20H6I4Na2O5 Molecular Weight (g/mol): 879.86 MDL Number: MFCD00144257 InChI Key: IINNWAYUJNWZRM-UHFFFAOYSA-L Synonym: Acid Red 51,C.I. 45430 PubChem CID: 12961638 SMILES: [Na+].[Na+].[O-]C(=O)C1=C(C=CC=C1)C1=C2C=C(I)C(=O)C(I)=C2OC2=C(I)C([O-])=C(I)C=C12

Pricing & Availability
Specifications

PubChem CID	12961638
CAS	16423-68-0
Molecular Weight (g/mol)	879.86
MDL Number	MFCD00144257
SMILES	[Na+].[Na+].[O-]C(=O)C1=C(C=CC=C1)C1=C2C=C(I)C(=O)C(I)=C2OC2=C(I)C([O-])=C(I)C=C12
Synonym	Acid Red 51,C.I. 45430
InChI Key	IINNWAYUJNWZRM-UHFFFAOYSA-L
Molecular Formula	C20H6I4Na2O5

275

Thermo Scientific Chemicals Trypan Blue, dye content >60%

CAS: 72-57-1 Molecular Formula: C34H24N6Na4O14S4 Molecular Weight (g/mol): 960.79 MDL Number: MFCD00003969 InChI Key: WMYVHJWZUUEZNE-ARWFNKCKSA-J PubChem CID: 9562061 IUPAC Name: tetrasodium;(3Z)-5-amino-3-[[4-[4-[(2Z)-2-(8-amino-1-oxo-3,6-disulfonatonaphthalen-2-ylidene)hydrazinyl]-3-methylphenyl]-2-methylphenyl]hydrazinylidene]-4-oxonaphthalene-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
IUPAC Name	tetrasodium;(3Z)-5-amino-3-[[4-[4-[(2Z)-2-(8-amino-1-oxo-3,6-disulfonatonaphthalen-2-ylidene)hydrazinyl]-3-methylphenyl]-2-methylphenyl]hydrazinylidene]-4-oxonaphthalene-2,7-disulfonate
InChI Key	WMYVHJWZUUEZNE-ARWFNKCKSA-J
Molecular Formula	C34H24N6Na4O14S4

276

Thermo Scientific Chemicals Hematoxylin, 85%, pure, certified

CAS: 517-28-2 Molecular Formula: C16H14O6 Molecular Weight (g/mol): 302.28 MDL Number: MFCD00078111 InChI Key: WZUVPPKBWHMQCE-WKTCHCBJNA-N Synonym: Natural Black 1,C.I. 75290 PubChem CID: 45029742 IUPAC Name: (6aR)-7,11b-dihydro-6H-indeno[2,1-c]chromene-3,4,6a,9,10-pentol SMILES: [H][C@]12C3=C(C[C@@]1(O)COC1=C2C=CC(O)=C1O)C=C(O)C(O)=C3

Pricing & Availability
Specifications

PubChem CID	45029742
CAS	517-28-2
Molecular Weight (g/mol)	302.28
MDL Number	MFCD00078111
SMILES	[H][C@]12C3=C(C[C@@]1(O)COC1=C2C=CC(O)=C1O)C=C(O)C(O)=C3
Synonym	Natural Black 1,C.I. 75290
IUPAC Name	(6aR)-7,11b-dihydro-6H-indeno[2,1-c]chromene-3,4,6a,9,10-pentol
InChI Key	WZUVPPKBWHMQCE-WKTCHCBJNA-N
Molecular Formula	C16H14O6

277

MP Biomedicals™ Fluorescent Brightener 28

Fluoresces clear bluish under UV radiation. Fluorescent Brightener 28 is a colorless organic compound that is used for the staining of fungi and as a viability stain. Industrial uses include use as a fluorescent brightening agent for cellulose and polyamide fabrics, paper and detergents and soaps.

Pricing & Availability
Specifications

Type	Fluorescent Brightener
Format	Powder
CAS	4404-43-7
Color	Yellow
Synonym	Calcofluor White M2R, Tinopal UNPA-GX
Concentration	0.05% to 0.20%
Storage Requirements	Store at Room Temperature (15°C to 30°C)
Molecular Formula	C40H42N12O10S2Na2
For Use With (Application)	Fluorescent Brightener 28 is used for the staining of fungi and as a viability stain. Industrial uses include use as a fluorescent brightening agent for cellulose and polyamide fabrics, paper and in detergents and soaps.
Formula Weight	960.96
Melting Point	290°C

278

Thermo Scientific Chemicals Neutral Red, pure, certified

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. 50040,3-Amino-7-dimethylamino-2-methylphenazine hydrochloride 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. 50040,3-Amino-7-dimethylamino-2-methylphenazine hydrochloride
IUPAC Name	8-N,8-N,3-trimethylphenazine-2,8-diamine;hydrochloride
InChI Key	PGSADBUBUOPOJS-UHFFFAOYSA-N
Molecular Formula	C15H17ClN4

279

Thermo Scientific Chemicals Xylenol Orange, sodium salt, pure, water soluble

CAS: 3618-43-7 Molecular Formula: C₃₁H₂₈N₂Na₄O₁₃S

Pricing & Availability
Specifications

CAS	3618-43-7
Molecular Formula	C₃₁H₂₈N₂Na₄O₁₃S

280

Thermo Scientific Chemicals Erythrosin B, pure, high purity, biological stain

CAS: 16423-68-0 Molecular Formula: C20H6I4Na2O5 Molecular Weight (g/mol): 879.86 MDL Number: MFCD00144257 InChI Key: IINNWAYUJNWZRM-UHFFFAOYSA-L Synonym: Acid Red 51,C.I. 45430 PubChem CID: 12961638 IUPAC Name: disodium 2-(2,4,5,7-tetraiodo-6-oxido-3-oxo-3H-xanthen-9-yl)benzoate SMILES: [Na+].[Na+].[O-]C(=O)C1=C(C=CC=C1)C1=C2C=C(I)C(=O)C(I)=C2OC2=C(I)C([O-])=C(I)C=C12

Pricing & Availability
Specifications

PubChem CID	12961638
CAS	16423-68-0
Molecular Weight (g/mol)	879.86
MDL Number	MFCD00144257
SMILES	[Na+].[Na+].[O-]C(=O)C1=C(C=CC=C1)C1=C2C=C(I)C(=O)C(I)=C2OC2=C(I)C([O-])=C(I)C=C12
Synonym	Acid Red 51,C.I. 45430
IUPAC Name	disodium 2-(2,4,5,7-tetraiodo-6-oxido-3-oxo-3H-xanthen-9-yl)benzoate
InChI Key	IINNWAYUJNWZRM-UHFFFAOYSA-L
Molecular Formula	C20H6I4Na2O5

281

Thymol, 98+%

CAS: 89-83-8 Molecular Formula: C10H14O Molecular Weight (g/mol): 150.221 MDL Number: MFCD00002309 InChI Key: MGSRCZKZVOBKFT-UHFFFAOYSA-N Synonym: 2-Isopropyl-5-methylphenol PubChem CID: 6989 ChEBI: CHEBI:27607 IUPAC Name: 5-methyl-2-propan-2-ylphenol SMILES: CC1=CC(=C(C=C1)C(C)C)O

Pricing & Availability
Specifications

PubChem CID	6989
CAS	89-83-8
Molecular Weight (g/mol)	150.221
ChEBI	CHEBI:27607
MDL Number	MFCD00002309
SMILES	CC1=CC(=C(C=C1)C(C)C)O
Synonym	2-Isopropyl-5-methylphenol
IUPAC Name	5-methyl-2-propan-2-ylphenol
InChI Key	MGSRCZKZVOBKFT-UHFFFAOYSA-N
Molecular Formula	C10H14O

282

Thermo Scientific Chemicals Thymolphthalein, pure, indicator

CAS: 125-20-2 Molecular Formula: C28H30O4 Molecular Weight (g/mol): 430.544 MDL Number: MFCD00005909 InChI Key: LDKDGDIWEUUXSH-UHFFFAOYSA-N Synonym: TP PubChem CID: 31316 IUPAC Name: 3,3-bis(4-hydroxy-2-methyl-5-propan-2-ylphenyl)-2-benzofuran-1-one SMILES: CC1=CC(=C(C=C1C2(C3=CC=CC=C3C(=O)O2)C4=CC(=C(C=C4C)O)C(C)C)C(C)C)O

Pricing & Availability
Specifications

PubChem CID	31316
CAS	125-20-2
Molecular Weight (g/mol)	430.544
MDL Number	MFCD00005909
SMILES	CC1=CC(=C(C=C1C2(C3=CC=CC=C3C(=O)O2)C4=CC(=C(C=C4C)O)C(C)C)C(C)C)O
Synonym	TP
IUPAC Name	3,3-bis(4-hydroxy-2-methyl-5-propan-2-ylphenyl)-2-benzofuran-1-one
InChI Key	LDKDGDIWEUUXSH-UHFFFAOYSA-N
Molecular Formula	C28H30O4

283

Xylene cyanol FF, ∼75%

CAS: 2650-17-1 Molecular Formula: C25H27N2NaO6S2 Molecular Weight (g/mol): 538.61 MDL Number: MFCD00019481 InChI Key: VVLFAAMTGMGYBS-KRQUPCAFSA-M Synonym: Acid blue 147 monosidium salt,C.I. 42135 IUPAC Name: sodium 4-{[4-(ethylamino)-3-methylphenyl][(1Z,4Z)-4-(ethylimino)-3-methylcyclohexa-2,5-dien-1-ylidene]methyl}-3-sulfobenzene-1-sulfonate SMILES: [Na+].CCNC1=C(C)C=C(C=C1)C(=C1/C=C\C(=N\CC)\C(C)=C1)\C1=C(C=C(C=C1)S([O-])(=O)=O)S(O)(=O)=O

Pricing & Availability
Specifications

CAS	2650-17-1
Molecular Weight (g/mol)	538.61
MDL Number	MFCD00019481
SMILES	[Na+].CCNC1=C(C)C=C(C=C1)C(=C1/C=C\C(=N\CC)\C(C)=C1)\C1=C(C=C(C=C1)S([O-])(=O)=O)S(O)(=O)=O
Synonym	Acid blue 147 monosidium salt,C.I. 42135
IUPAC Name	sodium 4-{[4-(ethylamino)-3-methylphenyl][(1Z,4Z)-4-(ethylimino)-3-methylcyclohexa-2,5-dien-1-ylidene]methyl}-3-sulfobenzene-1-sulfonate
InChI Key	VVLFAAMTGMGYBS-KRQUPCAFSA-M
Molecular Formula	C25H27N2NaO6S2

284

StatLab™ MasterTech Nuclear Fast Red Stain

Nuclear Fast Red Stain is a highly versatile reagent that selectively stains nuclear chromatin red, while the nonspecific signal is detected in pink tones.

Pricing & Availability
Specifications

Type	Nuclear Stain

285

Methyl Red Indicator, 0.1% (w/v) Alcoholic Solution, Ricca Chemical

CAS: 845-10-3 Molecular Formula: C15H14N3NaO2 Molecular Weight (g/mol): Mixture InChI Key: GNTPCYMJCJNRQB-UHFFFAOYSA-M PubChem CID: 4465632 IUPAC Name: sodium;2-[[4-(dimethylamino)phenyl]diazenyl]benzoate SMILES: CN(C)C1=CC=C(C=C1)N=NC2=CC=CC=C2C(=O)[O-].[Na+]

Pricing & Availability
Specifications

PubChem CID	4465632
CAS	845-10-3
Molecular Weight (g/mol)	Mixture
SMILES	CN(C)C1=CC=C(C=C1)N=NC2=CC=CC=C2C(=O)[O-].[Na+]
IUPAC Name	sodium;2-[[4-(dimethylamino)phenyl]diazenyl]benzoate
InChI Key	GNTPCYMJCJNRQB-UHFFFAOYSA-M
Molecular Formula	C15H14N3NaO2

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Stains and Dyes

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StatLab™ MasterTech Nuclear Fast Red Stain Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

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

StatLab™ MasterTech Nuclear Fast Red Stain

Methyl Red Indicator, 0.1% (w/v) Alcoholic Solution, Ricca Chemical