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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1,006 – 1,020 of 7,195 results

1,006

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

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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

1,007

Arsenazo II, free acid, >80%, MP Biomedicals™

CAS: 1668-00-4 Molecular Formula: C22H18As2N4O14S2 Molecular Weight (g/mol): 776.363 MDL Number: MFCD00036695 InChI Key: TVMZRHVOFZTNET-RIRMOVKSSA-N Synonym: 2,2'-[1, 8-dihydroxy-3,6-disulfo-2, 7-naphthalene-bis(azo)dibenzenearsonic acid,2, 2'-[1, 8-dihydroxy-3 PubChem CID: 9810878 IUPAC Name: (3Z,6E)-3,6-bis[(2-arsonophenyl)hydrazinylidene]-4,5-dioxonaphthalene-2,7-disulfonic acid SMILES: C1=CC=C(C(=C1)NN=C2C(=CC3=C(C2=O)C(=O)C(=NNC4=CC=CC=C4[As](=O)(O)O)C(=C3)S(=O)(=O)O)S(=O)(=O)O)[As](=O)(O)O

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Specifications

PubChem CID	9810878
CAS	1668-00-4
Molecular Weight (g/mol)	776.363
MDL Number	MFCD00036695
SMILES	C1=CC=C(C(=C1)NN=C2C(=CC3=C(C2=O)C(=O)C(=NNC4=CC=CC=C4[As](=O)(O)O)C(=C3)S(=O)(=O)O)S(=O)(=O)O)[As](=O)(O)O
Synonym	2,2'-[1, 8-dihydroxy-3,6-disulfo-2, 7-naphthalene-bis(azo)dibenzenearsonic acid,2, 2'-[1, 8-dihydroxy-3
IUPAC Name	(3Z,6E)-3,6-bis[(2-arsonophenyl)hydrazinylidene]-4,5-dioxonaphthalene-2,7-disulfonic acid
InChI Key	TVMZRHVOFZTNET-RIRMOVKSSA-N
Molecular Formula	C22H18As2N4O14S2

1,008

Azure B Certified, MP Biomedicals™

CAS: 531-55-5 Molecular Formula: C15H16ClN3S MDL Number: MFCD00011935 Synonym: C.I. 52010,N, N, N-Trimethylthionin PubChem CID: 68275

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Specifications

PubChem CID	68275
CAS	531-55-5
MDL Number	MFCD00011935
Synonym	C.I. 52010,N, N, N-Trimethylthionin
Molecular Formula	C15H16ClN3S

1,009

Xylenol Orange Disodium Salt, For spectrophotometric determination of metal ions, MilliporeSigma™ Supelco™

CAS: 1611-35-4 Molecular Formula: C31H32N2O13S Molecular Weight (g/mol): 672.66 InChI Key: ORZHVTYKPFFVMG-UHFFFAOYSA-N Synonym: 3,3 '-Bis[N,N-bis(carboxymethyl)aminomethyl]-o-cresolsulfonephthalein disodium salt IUPAC Name: 2-[({5-[3-(3-{[bis(carboxymethyl)amino]methyl}-4-hydroxy-5-methylphenyl)-1,1-dioxo-3H-2,1λ⁶-benzoxathiol-3-yl]-2-hydroxy-3-methylphenyl}methyl)(carboxymethyl)amino]acetic acid SMILES: CC1=CC(=CC(CN(CC(O)=O)CC(O)=O)=C1O)C1(OS(=O)(=O)C2=CC=CC=C12)C1=CC(C)=C(O)C(CN(CC(O)=O)CC(O)=O)=C1

Pricing & Availability
Specifications

CAS	1611-35-4
Molecular Weight (g/mol)	672.66
SMILES	CC1=CC(=CC(CN(CC(O)=O)CC(O)=O)=C1O)C1(OS(=O)(=O)C2=CC=CC=C12)C1=CC(C)=C(O)C(CN(CC(O)=O)CC(O)=O)=C1
Synonym	3,3 '-Bis[N,N-bis(carboxymethyl)aminomethyl]-o-cresolsulfonephthalein disodium salt
IUPAC Name	2-[({5-[3-(3-{[bis(carboxymethyl)amino]methyl}-4-hydroxy-5-methylphenyl)-1,1-dioxo-3H-2,1λ⁶-benzoxathiol-3-yl]-2-hydroxy-3-methylphenyl}methyl)(carboxymethyl)amino]acetic acid
InChI Key	ORZHVTYKPFFVMG-UHFFFAOYSA-N
Molecular Formula	C31H32N2O13S

1,010

2,6-Dichloroindophenol Sodium Salt Hydrate, Sigma-Aldrich

CAS: 1266615-56-8 Molecular Weight (g/mol): 290.08 g/mol

Pricing & Availability
Specifications

CAS	1266615-56-8
Molecular Weight (g/mol)	290.08 g/mol

1,011

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Phenol, Fused Crystal, USP, 99-100.5%, Spectrum™ Chemical

CAS: 108-95-2 Molecular Formula: C6H6O Molecular Weight (g/mol): 94.11 MDL Number: MFCD00002143 InChI Key: ISWSIDIOOBJBQZ-UHFFFAOYSA-N IUPAC Name: phenol SMILES: OC1=CC=CC=C1

Pricing & Availability
Specifications

CAS	108-95-2
Molecular Weight (g/mol)	94.11
MDL Number	MFCD00002143
SMILES	OC1=CC=CC=C1
IUPAC Name	phenol
InChI Key	ISWSIDIOOBJBQZ-UHFFFAOYSA-N
Molecular Formula	C6H6O

1,012

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Nigrosin water soluble

CAS: 8005-03-6 Molecular Formula: C22H14N6Na2O9S2 Molecular Weight (g/mol): 616.49 MDL Number: MFCD00044681 InChI Key: HKBVRFLHNUEVRO-HMDKGIQMSA-L Synonym: Acid Black 2,C.I. 50420 PubChem CID: 44134531 IUPAC Name: disodium;4-amino-3-[(4-nitrophenyl)diazenyl]-5-oxo-6-(phenylhydrazinylidene)naphthalene-2,7-disulfonate SMILES: C1=CC=C(C=C1)NN=C2C(=CC3=CC(=C(C(=C3C2=O)N)N=NC4=CC=C(C=C4)[N+](=O)[O-])S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+]

Pricing & Availability
Specifications

PubChem CID	44134531
CAS	8005-03-6
Molecular Weight (g/mol)	616.49
MDL Number	MFCD00044681
SMILES	C1=CC=C(C=C1)NN=C2C(=CC3=CC(=C(C(=C3C2=O)N)N=NC4=CC=C(C=C4)[N+](=O)[O-])S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+]
Synonym	Acid Black 2,C.I. 50420
IUPAC Name	disodium;4-amino-3-[(4-nitrophenyl)diazenyl]-5-oxo-6-(phenylhydrazinylidene)naphthalene-2,7-disulfonate
InChI Key	HKBVRFLHNUEVRO-HMDKGIQMSA-L
Molecular Formula	C22H14N6Na2O9S2

1,013

CAS	548-62-9
Molecular Weight (g/mol)	407.98 g/mol
Color	Black to Green
Grade	Certified Biological Stain

1,014

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Thermo Scientific Chemicals Biebrich Scarlet, dye content approx. 70%

CAS: 4196-99-0 Molecular Formula: C22H14N4Na2O7S2 Molecular Weight (g/mol): 556.47 MDL Number: MFCD00003891 InChI Key: YCKMEQRBEVVZQF-VKZXTWAVSA-L Synonym: Acid Red 66,C.I. 26905,Ponceau BS,Croceine scarlet PubChem CID: 16219040 IUPAC Name: disodium 2-{2-[(1Z)-2-oxo-1,2-dihydronaphthalen-1-ylidene]hydrazin-1-yl}-5-[2-(4-sulfonatophenyl)diazen-1-yl]benzene-1-sulfonate SMILES: [Na+].[Na+].[O-]S(=O)(=O)C1=CC=C(C=C1)N=NC1=CC=C(N\N=C2/C(=O)C=CC3=CC=CC=C23)C(=C1)S([O-])(=O)=O

Pricing & Availability
Specifications

PubChem CID	16219040
CAS	4196-99-0
Molecular Weight (g/mol)	556.47
MDL Number	MFCD00003891
SMILES	[Na+].[Na+].[O-]S(=O)(=O)C1=CC=C(C=C1)N=NC1=CC=C(N\N=C2/C(=O)C=CC3=CC=CC=C23)C(=C1)S([O-])(=O)=O
Synonym	Acid Red 66,C.I. 26905,Ponceau BS,Croceine scarlet
IUPAC Name	disodium 2-{2-[(1Z)-2-oxo-1,2-dihydronaphthalen-1-ylidene]hydrazin-1-yl}-5-[2-(4-sulfonatophenyl)diazen-1-yl]benzene-1-sulfonate
InChI Key	YCKMEQRBEVVZQF-VKZXTWAVSA-L
Molecular Formula	C22H14N4Na2O7S2

1,015

Wright's Eosine Methylene Blue, For Microscopy, MilliporeSigma™

Pricing & Availability

1,016

Epredia™ Richard-Allan Scientific™ Methyl Green-Pyronin Y

Effectively identify plasma cells and RNA in tissue sections and cytological preparations with Epredia™ Richard-Allan Scientific™ Methyl Green-Pyronin Y Stain

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1,017

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Thermo Scientific Chemicals Rhodamine 110, 98+%, pure, laser grade

CAS: 13558-31-1 Molecular Formula: C20H15ClN2O3 Molecular Weight (g/mol): 366.801 InChI Key: JNGRENQDBKMCCR-UHFFFAOYSA-N PubChem CID: 11617572 IUPAC Name: 2-(3-amino-6-iminoxanthen-9-yl)benzoic acid;hydrochloride SMILES: C1=CC=C(C(=C1)C2=C3C=CC(=N)C=C3OC4=C2C=CC(=C4)N)C(=O)O.Cl

Pricing & Availability
Specifications

PubChem CID	11617572
CAS	13558-31-1
Molecular Weight (g/mol)	366.801
SMILES	C1=CC=C(C(=C1)C2=C3C=CC(=N)C=C3OC4=C2C=CC(=C4)N)C(=O)O.Cl
IUPAC Name	2-(3-amino-6-iminoxanthen-9-yl)benzoic acid;hydrochloride
InChI Key	JNGRENQDBKMCCR-UHFFFAOYSA-N
Molecular Formula	C20H15ClN2O3

1,018

Novus Biologicals™ Purple Hematoxylin Solution

Ready-to-use histological staining reagent for nuclear demonstration in immunohistochemistry.

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1,019

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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

1,020

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Pigment Red 22, Thermo Scientific™

CAS: 6448-95-9 Molecular Formula: C24H18N4O4 Molecular Weight (g/mol): 426.43 MDL Number: MFCD00071989 InChI Key: HVBDWKMAUMVFIY-QYQHSDTDSA-N IUPAC Name: (4Z)-4-[2-(2-methyl-5-nitrophenyl)hydrazin-1-ylidene]-3-oxo-N-phenyl-3,4-dihydronaphthalene-2-carboxamide SMILES: CC1=CC=C(C=C1N\N=C1/C(=O)C(=CC2=CC=CC=C12)C(=O)NC1=CC=CC=C1)[N+]([O-])=O

Pricing & Availability
Specifications

CAS	6448-95-9
Molecular Weight (g/mol)	426.43
MDL Number	MFCD00071989
SMILES	CC1=CC=C(C=C1N\N=C1/C(=O)C(=CC2=CC=CC=C12)C(=O)NC1=CC=CC=C1)[N+]([O-])=O
IUPAC Name	(4Z)-4-[2-(2-methyl-5-nitrophenyl)hydrazin-1-ylidene]-3-oxo-N-phenyl-3,4-dihydronaphthalene-2-carboxamide
InChI Key	HVBDWKMAUMVFIY-QYQHSDTDSA-N
Molecular Formula	C24H18N4O4

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Epredia™ Richard-Allan Scientific™ Methyl Green-Pyronin Y GSA/VA ContractAvailable on GSA/VA contract for Federal Government customers.Learn More

Epredia™ Richard-Allan Scientific™ Methyl Green-Pyronin Y