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.

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316 – 330 of 7,105 results

316

m-Cresol Purple, sodium salt, pure, water soluble

CAS: 62625-31-4 Molecular Formula: C₂₁H₁₇NaO₅S MDL Number: MFCD00010177 Synonym: m-Cresol Purple, sodium salt

Pricing & Availability
Specifications

CAS	62625-31-4
MDL Number	MFCD00010177
Synonym	m-Cresol Purple, sodium salt
Molecular Formula	C₂₁H₁₇NaO₅S

317

Phenol Red, 0.5% Solution, MP Biomedicals

CAS: 34487-61-1 Molecular Formula: C19H13NaO5S Molecular Weight (g/mol): 376.358 MDL Number: MFCD00003552 InChI Key: HKHYOKBQJILTEI-UHFFFAOYSA-M Synonym: Phenolsulfonphthalein PubChem CID: 23686673 IUPAC Name: sodium;4-[3-(4-hydroxyphenyl)-1,1-dioxo-2,1$l^{6}-benzoxathiol-3-yl]phenolate SMILES: C1=CC=C2C(=C1)C(OS2(=O)=O)(C3=CC=C(C=C3)O)C4=CC=C(C=C4)[O-].[Na+]

Pricing & Availability
Specifications

PubChem CID	23686673
CAS	34487-61-1
Molecular Weight (g/mol)	376.358
MDL Number	MFCD00003552
SMILES	C1=CC=C2C(=C1)C(OS2(=O)=O)(C3=CC=C(C=C3)O)C4=CC=C(C=C4)[O-].[Na+]
Synonym	Phenolsulfonphthalein
IUPAC Name	sodium;4-[3-(4-hydroxyphenyl)-1,1-dioxo-2,1$l^{6}-benzoxathiol-3-yl]phenolate
InChI Key	HKHYOKBQJILTEI-UHFFFAOYSA-M
Molecular Formula	C19H13NaO5S

318

Thermo Scientific™ Remel™ Loefflers Methylene Blue

For presumptive identification of Corynebacterium diphtheriae, Haemophilus influenzae, Neisseria meningitidis, and gram-negative bacteria.

Pricing & Availability

319

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

Pricing & Availability
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

320

Sudan orange G, pure

CAS: 2051-85-6 Molecular Formula: C12H10N2O2 Molecular Weight (g/mol): 214.22 MDL Number: MFCD00002275 InChI Key: PULNESMFDLBKAZ-SDNWHVSQSA-N Synonym: C.I. 11920,4-(Phenylazo)resorcinol,Solvent orange 1 PubChem CID: 5921655 IUPAC Name: (4Z)-3-hydroxy-4-(phenylhydrazinylidene)cyclohexa-2,5-dien-1-one SMILES: OC1=CC(=O)C=C\C1=N/NC1=CC=CC=C1

Pricing & Availability
Specifications

PubChem CID	5921655
CAS	2051-85-6
Molecular Weight (g/mol)	214.22
MDL Number	MFCD00002275
SMILES	OC1=CC(=O)C=C\C1=N/NC1=CC=CC=C1
Synonym	C.I. 11920,4-(Phenylazo)resorcinol,Solvent orange 1
IUPAC Name	(4Z)-3-hydroxy-4-(phenylhydrazinylidene)cyclohexa-2,5-dien-1-one
InChI Key	PULNESMFDLBKAZ-SDNWHVSQSA-N
Molecular Formula	C12H10N2O2

321

Thermo Scientific Chemicals Rose Bengal, 85%, pure, high purity, Biological stain

CAS: 632-69-9 Molecular Formula: C20H4Cl4I4Na2O5 Molecular Weight (g/mol): 1019.644 MDL Number: MFCD00005043 InChI Key: DPBQSRZQYAYDGY-UHFFFAOYSA-N Synonym: Acid Red 94,C.I. 45440 PubChem CID: 87244310 IUPAC Name: sodium;4,5,6,7-tetrachloro-3',6'-dihydroxy-2',4',5',7'-tetraiodospiro[2-benzofuran-3,9'-xanthene]-1-one SMILES: C1=C2C(=C(C(=C1I)O)I)OC3=C(C(=C(C=C3C24C5=C(C(=C(C(=C5Cl)Cl)Cl)Cl)C(=O)O4)I)O)I.[Na].[Na]

Pricing & Availability
Specifications

PubChem CID	87244310
CAS	632-69-9
Molecular Weight (g/mol)	1019.644
MDL Number	MFCD00005043
SMILES	C1=C2C(=C(C(=C1I)O)I)OC3=C(C(=C(C=C3C24C5=C(C(=C(C(=C5Cl)Cl)Cl)Cl)C(=O)O4)I)O)I.[Na].[Na]
Synonym	Acid Red 94,C.I. 45440
IUPAC Name	sodium;4,5,6,7-tetrachloro-3',6'-dihydroxy-2',4',5',7'-tetraiodospiro[2-benzofuran-3,9'-xanthene]-1-one
InChI Key	DPBQSRZQYAYDGY-UHFFFAOYSA-N
Molecular Formula	C20H4Cl4I4Na2O5

322

StatLab™ Colorbond Mordant Dye Solution

A specially formulated mordant solution that facilitates marking dye adherence to tissue and helps to prevent bleeding or fading of dyes.

Pricing & Availability

323

Epredia™ Shandon™ Instant Hematoxylin

Substitute Epredia™ Shandon™ Instant Hematoxylin for Harris or Gill when no mucoid staining is required.

Pricing & Availability

324

Ethyl Violet, 80%, Thermo Scientific™

CAS: 2390-59-2 Molecular Formula: C31H42ClN3 Molecular Weight (g/mol): 492.15 MDL Number: MFCD00011765 InChI Key: JVICFMRAVNKDOE-UHFFFAOYSA-M Synonym: Basic Violet 4,C.I. 42600 PubChem CID: 16955 IUPAC Name: [4-[bis[4-(diethylamino)phenyl]methylidene]cyclohexa-2,5-dien-1-ylidene]-diethylazanium;chloride SMILES: [Cl-].CCN(CC)C1=CC=C(C=C1)[C+](C1=CC=C(C=C1)N(CC)CC)C1=CC=C(C=C1)N(CC)CC

Pricing & Availability
Specifications

PubChem CID	16955
CAS	2390-59-2
Molecular Weight (g/mol)	492.15
MDL Number	MFCD00011765
SMILES	[Cl-].CCN(CC)C1=CC=C(C=C1)[C+](C1=CC=C(C=C1)N(CC)CC)C1=CC=C(C=C1)N(CC)CC
Synonym	Basic Violet 4,C.I. 42600
IUPAC Name	[4-[bis[4-(diethylamino)phenyl]methylidene]cyclohexa-2,5-dien-1-ylidene]-diethylazanium;chloride
InChI Key	JVICFMRAVNKDOE-UHFFFAOYSA-M
Molecular Formula	C31H42ClN3

325

Rhodanine, 99%

CAS: 141-84-4 Molecular Formula: C3H3NOS2 Molecular Weight (g/mol): 133.183 MDL Number: MFCD00005488 InChI Key: KIWUVOGUEXMXSV-UHFFFAOYSA-N Synonym: 2-Thioxo-4-thiazolidinone PubChem CID: 1201546 ChEBI: CHEBI:8830 IUPAC Name: 2-sulfanylidene-1,3-thiazolidin-4-one SMILES: C1C(=O)NC(=S)S1

Pricing & Availability
Specifications

PubChem CID	1201546
CAS	141-84-4
Molecular Weight (g/mol)	133.183
ChEBI	CHEBI:8830
MDL Number	MFCD00005488
SMILES	C1C(=O)NC(=S)S1
Synonym	2-Thioxo-4-thiazolidinone
IUPAC Name	2-sulfanylidene-1,3-thiazolidin-4-one
InChI Key	KIWUVOGUEXMXSV-UHFFFAOYSA-N
Molecular Formula	C3H3NOS2

326

Azure C

CAS: 531-57-7 Molecular Formula: C13H12ClN3S Molecular Weight (g/mol): 277.77 MDL Number: MFCD00067677 InChI Key: DDGMDTGNGDOUPX-UHFFFAOYSA-N Synonym: C.I. 52002; 3-Amino-7-(methylamino)phenothiazin-5-ium chloride PubChem CID: 68277 IUPAC Name: (7-aminophenothiazin-3-ylidene)-methylazanium;chloride SMILES: C[NH+]=C1C=CC2=NC3=C(C=C(C=C3)N)SC2=C1.[Cl-]

Pricing & Availability
Specifications

PubChem CID	68277
CAS	531-57-7
Molecular Weight (g/mol)	277.77
MDL Number	MFCD00067677
SMILES	C[NH+]=C1C=CC2=NC3=C(C=C(C=C3)N)SC2=C1.[Cl-]
Synonym	C.I. 52002; 3-Amino-7-(methylamino)phenothiazin-5-ium chloride
IUPAC Name	(7-aminophenothiazin-3-ylidene)-methylazanium;chloride
InChI Key	DDGMDTGNGDOUPX-UHFFFAOYSA-N
Molecular Formula	C13H12ClN3S

327

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

328

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

Transition interval: pH 4.8 (purple) to pH 5.4 (green) | CAS: 1340-02-9

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Specifications

Concentration or Composition (by Analyte or Components)	Methyl purple: 0.1%; Water: 99.9%
CAS	7732-18-5
MDL Number	MFCD00070843
Physical Form	Liquid
Chemical Name or Material	Methyl Purple
TSCA	No
Recommended Storage	Ambient temperatures
Vapor Pressure	23 hPa (17mm Hg) at 20°C
Assay Percent Range	0.1% w/v aqueous solution

329

Methyl Orange (0.1% in Water) [for Titration], TCI America™

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

330

Thermo Scientific Chemicals Bromothymol Blue, ACS reagent

CAS: 76-59-5 Molecular Formula: C27H28Br2O5S Molecular Weight (g/mol): 624.384 MDL Number: MFCD00005872 InChI Key: NUHCTOLBWMJMLX-UHFFFAOYSA-N Synonym: Bromthymol Blue,3';, 3';';-Dibromothymolsulfonephthalein,BTB PubChem CID: 6450 ChEBI: CHEBI:86155 IUPAC Name: 2-bromo-4-[3-(3-bromo-4-hydroxy-2-methyl-5-propan-2-ylphenyl)-1,1-dioxo-2,1$l^{6}-benzoxathiol-3-yl]-3-methyl-6-propan-2-ylphenol SMILES: CC1=C(C(=C(C=C1C2(C3=CC=CC=C3S(=O)(=O)O2)C4=CC(=C(C(=C4C)Br)O)C(C)C)C(C)C)O)Br

Pricing & Availability
Specifications

PubChem CID	6450
CAS	76-59-5
Molecular Weight (g/mol)	624.384
ChEBI	CHEBI:86155
MDL Number	MFCD00005872
SMILES	CC1=C(C(=C(C=C1C2(C3=CC=CC=C3S(=O)(=O)O2)C4=CC(=C(C(=C4C)Br)O)C(C)C)C(C)C)O)Br
Synonym	Bromthymol Blue,3';, 3';';-Dibromothymolsulfonephthalein,BTB
IUPAC Name	2-bromo-4-[3-(3-bromo-4-hydroxy-2-methyl-5-propan-2-ylphenyl)-1,1-dioxo-2,1$l^{6}-benzoxathiol-3-yl]-3-methyl-6-propan-2-ylphenol
InChI Key	NUHCTOLBWMJMLX-UHFFFAOYSA-N
Molecular Formula	C27H28Br2O5S

Stains and Dyes

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Thermo Scientific™ Remel™ Loefflers Methylene Blue GSA/VA ContractAvailable on GSA/VA contract for Federal Government customers.Learn More

StatLab™ Colorbond Mordant Dye Solution GSA/VA ContractAvailable on GSA/VA contract for Federal Government customers.Learn More

Thermo Scientific™ Remel™ Loefflers Methylene Blue

StatLab™ Colorbond Mordant Dye Solution