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.

526 – 540 of 6,701 results

526

Thermo Scientific™ Remel™ DMSO Modified Acid Fast Stain Kit

Thermo Scientific™ Remel DMSO Modified Acid Fast Stain Kit is for detection of acid-fast microorganisms.

Pricing & Availability

527

Erythrosin B Sodium Salt, MP Biomedicals™

CAS: 568-63-8 Molecular Formula: C40H14I8Na2O10 Molecular Weight (g/mol): 1715.757 InChI Key: DKRYETBOLGDIOK-UHFFFAOYSA-L Synonym: Acid Red 51, Solvent Red 140, 2',4',5',7'-Tetraiodofluorescein, FD&C Red No. 3, Erythrosin extra bluish PubChem CID: 131676154 IUPAC Name: disodium;2-(3-hydroxy-2,4,5,7-tetraiodo-6-oxoxanthen-9-yl)benzoic acid;2-(2,4,5,7-tetraiodo-3-oxido-6-oxoxanthen-9-yl)benzoate SMILES: C1=CC=C(C(=C1)C2=C3C=C(C(=O)C(=C3OC4=C(C(=C(C=C24)I)O)I)I)I)C(=O)O.C1=CC=C(C(=C1)C2=C3C=C(C(=O)C(=C3OC4=C(C(=C(C=C24)I)[O-])I)I)I)C(=O)[O-].[Na+].[Na+]

Pricing & Availability
Specifications

PubChem CID	131676154
CAS	568-63-8
Molecular Weight (g/mol)	1715.757
SMILES	C1=CC=C(C(=C1)C2=C3C=C(C(=O)C(=C3OC4=C(C(=C(C=C24)I)O)I)I)I)C(=O)O.C1=CC=C(C(=C1)C2=C3C=C(C(=O)C(=C3OC4=C(C(=C(C=C24)I)[O-])I)I)I)C(=O)[O-].[Na+].[Na+]
Synonym	Acid Red 51, Solvent Red 140, 2',4',5',7'-Tetraiodofluorescein, FD&C Red No. 3, Erythrosin extra bluish
IUPAC Name	disodium;2-(3-hydroxy-2,4,5,7-tetraiodo-6-oxoxanthen-9-yl)benzoic acid;2-(2,4,5,7-tetraiodo-3-oxido-6-oxoxanthen-9-yl)benzoate
InChI Key	DKRYETBOLGDIOK-UHFFFAOYSA-L
Molecular Formula	C40H14I8Na2O10

528

D and C Red No. 6, 90%, Spectrum™ Chemical

CAS: 5858-81-1 Molecular Formula: C18H12N2Na2O6S Molecular Weight (g/mol): 430.34 InChI Key: CTBASIXHDUUSCV-SDXCCTRSSA-L IUPAC Name: disodium (4E)-4-[2-(4-methyl-2-sulfonatophenyl)hydrazin-1-ylidene]-3-oxo-3,4-dihydronaphthalene-2-carboxylate SMILES: [Na+].[Na+].CC1=CC=C(N\N=C2\C(=O)C(=CC3=CC=CC=C23)C([O-])=O)C(=C1)S([O-])(=O)=O

Pricing & Availability
Specifications

CAS	5858-81-1
Molecular Weight (g/mol)	430.34
SMILES	[Na+].[Na+].CC1=CC=C(N\N=C2\C(=O)C(=CC3=CC=CC=C23)C([O-])=O)C(=C1)S([O-])(=O)=O
IUPAC Name	disodium (4E)-4-[2-(4-methyl-2-sulfonatophenyl)hydrazin-1-ylidene]-3-oxo-3,4-dihydronaphthalene-2-carboxylate
InChI Key	CTBASIXHDUUSCV-SDXCCTRSSA-L
Molecular Formula	C18H12N2Na2O6S

529

MilliporeSigma™ Methylene Blue, Trihydrate, OmniPur™, Calbiochem™,

CAS: 7220-79-3 Molecular Formula: C16H24ClN3O3S Molecular Weight (g/mol): 373.90 MDL Number: MFCD00150008 InChI Key: XQAXGZLFSSPBMK-UHFFFAOYSA-M PubChem CID: 104827 IUPAC Name: 3,7-bis(dimethylamino)-5λ⁴-phenothiazin-5-ylium trihydrate chloride SMILES: O.O.O.[Cl-].CN(C)C1=CC2=[S+]C3=CC(=CC=C3N=C2C=C1)N(C)C

Pricing & Availability
Specifications

PubChem CID	104827
CAS	7220-79-3
Molecular Weight (g/mol)	373.90
MDL Number	MFCD00150008
SMILES	O.O.O.[Cl-].CN(C)C1=CC2=[S+]C3=CC(=CC=C3N=C2C=C1)N(C)C
IUPAC Name	3,7-bis(dimethylamino)-5λ⁴-phenothiazin-5-ylium trihydrate chloride
InChI Key	XQAXGZLFSSPBMK-UHFFFAOYSA-M
Molecular Formula	C16H24ClN3O3S

530

Brilliant Black, MP Biomedicals

CAS: 2519-30-4 Molecular Formula: C28H17N5Na4O14S4 Molecular Weight (g/mol): 867.664 InChI Key: AGKKBBSOKGLVTM-YENKNCRGSA-J PubChem CID: 6321379 IUPAC Name: tetrasodium;(6E)-4-acetamido-5-oxo-6-[[7-sulfonato-4-[(4-sulfonatophenyl)diazenyl]naphthalen-1-yl]hydrazinylidene]naphthalene-1,7-disulfonate SMILES: CC(=O)NC1=C2C(=C(C=C1)S(=O)(=O)[O-])C=C(C(=NNC3=C4C=C(C=CC4=C(C=C3)N=NC5=CC=C(C=C5)S(=O)(=O)[O-])S(=O)(=O)[O-])C2=O)S(=O)(=O)[O-].[Na+].[Na+].[Na+].[Na+]

Pricing & Availability
Specifications

PubChem CID	6321379
CAS	2519-30-4
Molecular Weight (g/mol)	867.664
SMILES	CC(=O)NC1=C2C(=C(C=C1)S(=O)(=O)[O-])C=C(C(=NNC3=C4C=C(C=CC4=C(C=C3)N=NC5=CC=C(C=C5)S(=O)(=O)[O-])S(=O)(=O)[O-])C2=O)S(=O)(=O)[O-].[Na+].[Na+].[Na+].[Na+]
IUPAC Name	tetrasodium;(6E)-4-acetamido-5-oxo-6-[[7-sulfonato-4-[(4-sulfonatophenyl)diazenyl]naphthalen-1-yl]hydrazinylidene]naphthalene-1,7-disulfonate
InChI Key	AGKKBBSOKGLVTM-YENKNCRGSA-J
Molecular Formula	C28H17N5Na4O14S4

531

Fluorescein, Alcohol Soluble, Spectrum™ Chemical

CAS: 2321-07-5

Pricing & Availability
Specifications

CAS	2321-07-5

532

Thermo Scientific Chemicals Thymolphthalein, 0.05% w/v solution in ethanol

CAS: 125-20-2 Molecular Formula: C28H30O4 Molecular Weight (g/mol): 430.544 MDL Number: MFCD00005909 InChI Key: LDKDGDIWEUUXSH-UHFFFAOYSA-N 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
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

533

Thermo Scientific Chemicals Phenolphthalein, 0.5% w/v in alcohol

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 & 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

534

Nitrazine Yellow

CAS: 5423-07-4 MDL Number: MFCD00003938 Synonym: C.I. 14890; Delta Yellow

Pricing & Availability
Specifications

CAS	5423-07-4
MDL Number	MFCD00003938
Synonym	C.I. 14890; Delta Yellow

535

Thermo Scientific Chemicals Amaranth, 85%, pure

CAS: 915-67-3 Molecular Formula: C20H11N2Na3O10S3 Molecular Weight (g/mol): 604.46 MDL Number: MFCD00004076 InChI Key: VOBHRQFELWTZFS-DXVNCNPQSA-K Synonym: Acid Red 27,C.I. 16185 PubChem CID: 6364527 IUPAC Name: trisodium;3-oxo-4-[(4-sulfonatonaphthalen-1-yl)hydrazinylidene]naphthalene-2,7-disulfonate SMILES: [Na+].[Na+].[Na+].[O-]S(=O)(=O)C1=CC=C2C(=C1)C=C(C(=O)\C2=N\NC1=C2C=CC=CC2=C(C=C1)S([O-])(=O)=O)S([O-])(=O)=O

Pricing & Availability
Specifications

PubChem CID	6364527
CAS	915-67-3
Molecular Weight (g/mol)	604.46
MDL Number	MFCD00004076
SMILES	[Na+].[Na+].[Na+].[O-]S(=O)(=O)C1=CC=C2C(=C1)C=C(C(=O)\C2=N\NC1=C2C=CC=CC2=C(C=C1)S([O-])(=O)=O)S([O-])(=O)=O
Synonym	Acid Red 27,C.I. 16185
IUPAC Name	trisodium;3-oxo-4-[(4-sulfonatonaphthalen-1-yl)hydrazinylidene]naphthalene-2,7-disulfonate
InChI Key	VOBHRQFELWTZFS-DXVNCNPQSA-K
Molecular Formula	C20H11N2Na3O10S3

536

2',7'-Dichlorofluorescein 3',6'-diacetate, 97%

CAS: 2044-85-1 Molecular Formula: C24H14Cl2O7 Molecular Weight (g/mol): 485.27 MDL Number: MFCD00037501 InChI Key: VQVUBYASAICPFU-UHFFFAOYSA-N PubChem CID: 104913 IUPAC Name: (6'-acetyloxy-2',7'-dichloro-3-oxospiro[2-benzofuran-1,9'-xanthene]-3'-yl) acetate SMILES: CC(=O)OC1=CC2=C(C=C1Cl)C1(OC(=O)C3=CC=CC=C13)C1=CC(Cl)=C(OC(C)=O)C=C1O2

Pricing & Availability
Specifications

PubChem CID	104913
CAS	2044-85-1
Molecular Weight (g/mol)	485.27
MDL Number	MFCD00037501
SMILES	CC(=O)OC1=CC2=C(C=C1Cl)C1(OC(=O)C3=CC=CC=C13)C1=CC(Cl)=C(OC(C)=O)C=C1O2
IUPAC Name	(6'-acetyloxy-2',7'-dichloro-3-oxospiro[2-benzofuran-1,9'-xanthene]-3'-yl) acetate
InChI Key	VQVUBYASAICPFU-UHFFFAOYSA-N
Molecular Formula	C24H14Cl2O7

537

Phenolphthalein StandAR, Macron Fine Chemicals™

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)-1,3-dihydro-2-benzofuran-1-one SMILES: OC1=CC=C(C=C1)C1(OC(=O)C2=CC=CC=C12)C1=CC=C(O)C=C1

Pricing & 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)-1,3-dihydro-2-benzofuran-1-one
InChI Key	KJFMBFZCATUALV-UHFFFAOYSA-N
Molecular Formula	C20H14O4

538

Thermo Scientific Chemicals Cresyl Violet acetate

CAS: 10510-54-0 Molecular Formula: C18H15N3O3 Molecular Weight (g/mol): 321.34 MDL Number: MFCD00013151,MFCD00013151 InChI Key: XKOCOMKJPWEOHX-UHFFFAOYSA-M Synonym: 9-Amino-5-imino-5H-benzo[a]phenoxazine acetate salt; Cresyl echt violet PubChem CID: 44134641 IUPAC Name: acetic acid;5-iminobenzo[a]phenoxazin-9-amine SMILES: CC([O-])=O.NC1=CC2=[O+]C3=C(N=C2C=C1)C1=CC=CC=C1C(N)=C3

Pricing & Availability
Specifications

PubChem CID	44134641
CAS	10510-54-0
Molecular Weight (g/mol)	321.34
MDL Number	MFCD00013151,MFCD00013151
SMILES	CC([O-])=O.NC1=CC2=[O+]C3=C(N=C2C=C1)C1=CC=CC=C1C(N)=C3
Synonym	9-Amino-5-imino-5H-benzo[a]phenoxazine acetate salt; Cresyl echt violet
IUPAC Name	acetic acid;5-iminobenzo[a]phenoxazin-9-amine
InChI Key	XKOCOMKJPWEOHX-UHFFFAOYSA-M
Molecular Formula	C18H15N3O3

539

Thermo Scientific Chemicals Thymol Blue, ACS reagent

CAS: 76-61-9 Molecular Formula: C27H30O5S Molecular Weight (g/mol): 466.592 MDL Number: MFCD00005869 InChI Key: PRZSXZWFJHEZBJ-UHFFFAOYSA-N Synonym: TB,Thymolsulfonephthalein PubChem CID: 65565 IUPAC Name: 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-ylphenol SMILES: CC1=CC(=C(C=C1C2(C3=CC=CC=C3S(=O)(=O)O2)C4=CC(=C(C=C4C)O)C(C)C)C(C)C)O

Pricing & Availability
Specifications

PubChem CID	65565
CAS	76-61-9
Molecular Weight (g/mol)	466.592
MDL Number	MFCD00005869
SMILES	CC1=CC(=C(C=C1C2(C3=CC=CC=C3S(=O)(=O)O2)C4=CC(=C(C=C4C)O)C(C)C)C(C)C)O
Synonym	TB,Thymolsulfonephthalein
IUPAC Name	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-ylphenol
InChI Key	PRZSXZWFJHEZBJ-UHFFFAOYSA-N
Molecular Formula	C27H30O5S

540

Methylthymol Blue Sodium Salt, Honeywell Fluka™

CAS: 1945-77-3 Molecular Formula: C37H44N2Na4O13S Molecular Weight (g/mol): 848.779 MDL Number: MFCD00148905 InChI Key: LGVVZVZPOQJZKT-UHFFFAOYSA-N PubChem CID: 131850582 IUPAC Name: 2-[[5-[3-[3-[[bis(carboxymethyl)amino]methyl]-4-hydroxy-2-methyl-5-propan-2-ylphenyl]-1,1-dioxo-2,1$l^{6}-benzoxathiol-3-yl]-2-hydroxy-6-methyl-3-propan-2-ylphenyl]methyl-(carboxymethyl)amino]acetic acid;sodium SMILES: CC1=C(C(=C(C=C1C2(C3=CC=CC=C3S(=O)(=O)O2)C4=CC(=C(C(=C4C)CN(CC(=O)O)CC(=O)O)O)C(C)C)C(C)C)O)CN(CC(=O)O)CC(=O)O.[Na].[Na].[Na].[Na]

Pricing & Availability
Specifications

PubChem CID	131850582
CAS	1945-77-3
Molecular Weight (g/mol)	848.779
MDL Number	MFCD00148905
SMILES	CC1=C(C(=C(C=C1C2(C3=CC=CC=C3S(=O)(=O)O2)C4=CC(=C(C(=C4C)CN(CC(=O)O)CC(=O)O)O)C(C)C)C(C)C)O)CN(CC(=O)O)CC(=O)O.[Na].[Na].[Na].[Na]
IUPAC Name	2-[[5-[3-[3-[[bis(carboxymethyl)amino]methyl]-4-hydroxy-2-methyl-5-propan-2-ylphenyl]-1,1-dioxo-2,1$l^{6}-benzoxathiol-3-yl]-2-hydroxy-6-methyl-3-propan-2-ylphenyl]methyl-(carboxymethyl)amino]acetic acid;sodium
InChI Key	LGVVZVZPOQJZKT-UHFFFAOYSA-N
Molecular Formula	C37H44N2Na4O13S

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Stains and Dyes

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D and C Red No. 6, 90%, Spectrum™ Chemical Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Fluorescein, Alcohol Soluble, Spectrum™ Chemical Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

D and C Red No. 6, 90%, Spectrum™ Chemical

Fluorescein, Alcohol Soluble, Spectrum™ Chemical