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.

721 – 735 of 6,401 results

721

Thermo Scientific Chemicals Quinaldine red, pure

CAS: 117-92-0 Molecular Formula: C21H23IN2 Molecular Weight (g/mol): 430.33 MDL Number: MFCD00011968 InChI Key: JOLANDVPGMEGLK-UHFFFAOYSA-M Synonym: 2-[4-(Dimethylamino)styryl]-1-ethylquinolinium iodide PubChem CID: 5702759 SMILES: [I-].CC[N+]1=C2C=CC=CC2=CC=C1C=CC1=CC=C(C=C1)N(C)C

Pricing & Availability
Specifications

PubChem CID	5702759
CAS	117-92-0
Molecular Weight (g/mol)	430.33
MDL Number	MFCD00011968
SMILES	[I-].CC[N+]1=C2C=CC=CC2=CC=C1C=CC1=CC=C(C=C1)N(C)C
Synonym	2-[4-(Dimethylamino)styryl]-1-ethylquinolinium iodide
InChI Key	JOLANDVPGMEGLK-UHFFFAOYSA-M
Molecular Formula	C21H23IN2

722

MilliporeSigma™ Ninhydrin, Calbiochem™,

CAS: 485-47-2 Molecular Formula: C9H6O4 Molecular Weight (g/mol): 178.143 InChI Key: FEMOMIGRRWSMCU-UHFFFAOYSA-N PubChem CID: 10236 ChEBI: CHEBI:86374 IUPAC Name: 2,2-dihydroxyindene-1,3-dione SMILES: C1=CC=C2C(=C1)C(=O)C(C2=O)(O)O

Pricing & Availability
Specifications

PubChem CID	10236
CAS	485-47-2
Molecular Weight (g/mol)	178.143
ChEBI	CHEBI:86374
SMILES	C1=CC=C2C(=C1)C(=O)C(C2=O)(O)O
IUPAC Name	2,2-dihydroxyindene-1,3-dione
InChI Key	FEMOMIGRRWSMCU-UHFFFAOYSA-N
Molecular Formula	C9H6O4

723

Phenol Red, BAKER ANALYZED™ A.C.S. Reagent, J.T. Baker™

CAS: 143-74-8 Molecular Formula: C19H14O5S Molecular Weight (g/mol): 354.38 MDL Number: MFCD00003552 InChI Key: BELBBZDIHDAJOR-UHFFFAOYSA-N PubChem CID: 4766 ChEBI: CHEBI:31991 IUPAC Name: 4-[3-(4-hydroxyphenyl)-1,1-dioxo-2,1$l^{6}-benzoxathiol-3-yl]phenol SMILES: OC1=CC=C(C=C1)C1(OS(=O)(=O)C2=CC=CC=C12)C1=CC=C(O)C=C1

Pricing & Availability
Specifications

PubChem CID	4766
CAS	143-74-8
Molecular Weight (g/mol)	354.38
ChEBI	CHEBI:31991
MDL Number	MFCD00003552
SMILES	OC1=CC=C(C=C1)C1(OS(=O)(=O)C2=CC=CC=C12)C1=CC=C(O)C=C1
IUPAC Name	4-[3-(4-hydroxyphenyl)-1,1-dioxo-2,1$l^{6}-benzoxathiol-3-yl]phenol
InChI Key	BELBBZDIHDAJOR-UHFFFAOYSA-N
Molecular Formula	C19H14O5S

724

Bromothymol Blue Solution, BAKER™, J.T. Baker™

CAS: 34722-90-2 Molecular Formula: C27H27Br2NaO5S Molecular Weight (g/mol): 646.37 MDL Number: MFCD00077263,MFCD00077263,MFCD00077263 InChI Key: NMKFVGALBGZKGW-FKWCIMQXSA-M PubChem CID: 102183223 IUPAC Name: sodium 2-{[(1Z)-3-bromo-2-methyl-4-oxo-5-(propan-2-yl)cyclohexa-2,5-dien-1-ylidene][3-bromo-4-hydroxy-2-methyl-5-(propan-2-yl)phenyl]methyl}benzene-1-sulfonate SMILES: [Na+].CC(C)C1=CC(\C(C2=CC=CC=C2S([O-])(=O)=O)=C2/C=C(C(C)C)C(=O)C(Br)=C2C)=C(C)C(Br)=C1O

Pricing & Availability
Specifications

PubChem CID	102183223
CAS	34722-90-2
Molecular Weight (g/mol)	646.37
MDL Number	MFCD00077263,MFCD00077263,MFCD00077263
SMILES	[Na+].CC(C)C1=CC(\C(C2=CC=CC=C2S([O-])(=O)=O)=C2/C=C(C(C)C)C(=O)C(Br)=C2C)=C(C)C(Br)=C1O
IUPAC Name	sodium 2-{[(1Z)-3-bromo-2-methyl-4-oxo-5-(propan-2-yl)cyclohexa-2,5-dien-1-ylidene][3-bromo-4-hydroxy-2-methyl-5-(propan-2-yl)phenyl]methyl}benzene-1-sulfonate
InChI Key	NMKFVGALBGZKGW-FKWCIMQXSA-M
Molecular Formula	C27H27Br2NaO5S

725

Methylene blue, trihydrate, Molecular biology reagent grade, MP Biomedicals™

CAS: 7220-79-3 Molecular Formula: C16H18ClN3S Molecular Weight (g/mol): 319.851 InChI Key: CXKWCBBOMKCUKX-UHFFFAOYSA-M Synonym: Methylthionine chloride,C.I. 53015 PubChem CID: 6099 ChEBI: CHEBI:6872 IUPAC Name: [7-(dimethylamino)phenothiazin-3-ylidene]-dimethylazanium;chloride SMILES: CN(C)C1=CC2=C(C=C1)N=C3C=CC(=[N+](C)C)C=C3S2.[Cl-]

Pricing & Availability
Specifications

PubChem CID	6099
CAS	7220-79-3
Molecular Weight (g/mol)	319.851
ChEBI	CHEBI:6872
SMILES	CN(C)C1=CC2=C(C=C1)N=C3C=CC(=[N+](C)C)C=C3S2.[Cl-]
Synonym	Methylthionine chloride,C.I. 53015
IUPAC Name	[7-(dimethylamino)phenothiazin-3-ylidene]-dimethylazanium;chloride
InChI Key	CXKWCBBOMKCUKX-UHFFFAOYSA-M
Molecular Formula	C16H18ClN3S

726

Brilliant Sulfaflavine, MP Biomedicals™

CAS: 2391-30-2 Molecular Formula: C19H13N2NaO5S Molecular Weight (g/mol): 404.372 InChI Key: HYLDLLCHFLSKAG-UHFFFAOYSA-M Synonym: BSF PubChem CID: 23678860 ChEBI: CHEBI:87226 IUPAC Name: sodium;6-amino-2-(4-methylphenyl)-1,3-dioxobenzo[de]isoquinoline-5-sulfonate SMILES: CC1=CC=C(C=C1)N2C(=O)C3=CC=CC4=C3C(=CC(=C4N)S(=O)(=O)[O-])C2=O.[Na+]

Pricing & Availability
Specifications

PubChem CID	23678860
CAS	2391-30-2
Molecular Weight (g/mol)	404.372
ChEBI	CHEBI:87226
SMILES	CC1=CC=C(C=C1)N2C(=O)C3=CC=CC4=C3C(=CC(=C4N)S(=O)(=O)[O-])C2=O.[Na+]
Synonym	BSF
IUPAC Name	sodium;6-amino-2-(4-methylphenyl)-1,3-dioxobenzo[de]isoquinoline-5-sulfonate
InChI Key	HYLDLLCHFLSKAG-UHFFFAOYSA-M
Molecular Formula	C19H13N2NaO5S

727

Bromocresol purple, MP Biomedicals™

CAS: 115-40-2 Molecular Formula: C21H16Br2O5S Molecular Weight (g/mol): 540.22 MDL Number: MFCD00011681 InChI Key: ABIUHPWEYMSGSR-UHFFFAOYSA-N Synonym: 5', 5”-dibromo-o-cresolsulfonephthalein PubChem CID: 8273 ChEBI: CHEBI:86154 IUPAC Name: 3,3-bis(3-bromo-4-hydroxy-5-methylphenyl)-3H-2,1λ⁶-benzoxathiole-1,1-dione SMILES: CC1=CC(=CC(Br)=C1O)C1(OS(=O)(=O)C2=CC=CC=C12)C1=CC(C)=C(O)C(Br)=C1

Pricing & Availability
Specifications

PubChem CID	8273
CAS	115-40-2
Molecular Weight (g/mol)	540.22
ChEBI	CHEBI:86154
MDL Number	MFCD00011681
SMILES	CC1=CC(=CC(Br)=C1O)C1(OS(=O)(=O)C2=CC=CC=C12)C1=CC(C)=C(O)C(Br)=C1
Synonym	5', 5”-dibromo-o-cresolsulfonephthalein
IUPAC Name	3,3-bis(3-bromo-4-hydroxy-5-methylphenyl)-3H-2,1λ⁶-benzoxathiole-1,1-dione
InChI Key	ABIUHPWEYMSGSR-UHFFFAOYSA-N
Molecular Formula	C21H16Br2O5S

728

Trypan blue, 83.3%, MP Biomedicals™

CAS: 72-57-1 Molecular Formula: C34H24N6Na4O14S4 Molecular Weight (g/mol): 960.79 MDL Number: MFCD00003969 InChI Key: WMYVHJWZUUEZNE-ARWFNKCKSA-J Synonym: Direct Blue 14,Niagara Blue 3B PubChem CID: 9562061 IUPAC Name: tetrasodium (3Z)-5-amino-3-[2-(4'-{2-[(2Z)-8-amino-1-oxo-3,6-disulfonato-1,2-dihydronaphthalen-2-ylidene]hydrazin-1-yl}-3,3'-dimethyl-[1,1'-biphenyl]-4-yl)hydrazin-1-ylidene]-4-oxo-3,4-dihydronaphthalene-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
Synonym	Direct Blue 14,Niagara Blue 3B
IUPAC Name	tetrasodium (3Z)-5-amino-3-[2-(4'-{2-[(2Z)-8-amino-1-oxo-3,6-disulfonato-1,2-dihydronaphthalen-2-ylidene]hydrazin-1-yl}-3,3'-dimethyl-[1,1'-biphenyl]-4-yl)hydrazin-1-ylidene]-4-oxo-3,4-dihydronaphthalene-2,7-disulfonate
InChI Key	WMYVHJWZUUEZNE-ARWFNKCKSA-J
Molecular Formula	C34H24N6Na4O14S4

729

Cresyl violet acetate, 69%, MP Biomedicals™

CAS: 10510-54-0 Molecular Formula: C18H15N3O3 Molecular Weight (g/mol): 321.34 MDL Number: MFCD00013151,MFCD00013151 InChI Key: XKOCOMKJPWEOHX-UHFFFAOYSA-M Synonym: Cresyl Fast Violet,9-amino-5-imino-5H-benzo[a]phenoxazine acetate salt PubChem CID: 44134641 IUPAC Name: 8,12-diamino-10λ⁴-oxa-5-azatetraphen-10-ylium acetate 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	Cresyl Fast Violet,9-amino-5-imino-5H-benzo[a]phenoxazine acetate salt
IUPAC Name	8,12-diamino-10λ⁴-oxa-5-azatetraphen-10-ylium acetate
InChI Key	XKOCOMKJPWEOHX-UHFFFAOYSA-M
Molecular Formula	C18H15N3O3

730

Ponceau S, MP Biomedicals

CAS: 6226-79-5 Molecular Formula: C22H12N4Na4O13S4 Molecular Weight (g/mol): 760.552 InChI Key: VSXKEUCERCWGKF-STNZDNLRSA-J Synonym: 3-Hydroxy-4-[2-sulfo-4-(4-sulfo- phenylazo)phenylazo]-2, 7- naphthalene-disulfonic acid tetrasodium salt PubChem CID: 11320219 IUPAC Name: tetrasodium;(4Z)-3-oxo-4-[[2-sulfonato-4-[(4-sulfonatophenyl)diazenyl]phenyl]hydrazinylidene]naphthalene-2,7-disulfonate SMILES: C1=CC(=CC=C1N=NC2=CC(=C(C=C2)NN=C3C4=C(C=C(C=C4)S(=O)(=O)[O-])C=C(C3=O)S(=O)(=O)[O-])S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+].[Na+].[Na+]

Pricing & Availability
Specifications

PubChem CID	11320219
CAS	6226-79-5
Molecular Weight (g/mol)	760.552
SMILES	C1=CC(=CC=C1N=NC2=CC(=C(C=C2)NN=C3C4=C(C=C(C=C4)S(=O)(=O)[O-])C=C(C3=O)S(=O)(=O)[O-])S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+].[Na+].[Na+]
Synonym	3-Hydroxy-4-[2-sulfo-4-(4-sulfo- phenylazo)phenylazo]-2, 7- naphthalene-disulfonic acid tetrasodium salt
IUPAC Name	tetrasodium;(4Z)-3-oxo-4-[[2-sulfonato-4-[(4-sulfonatophenyl)diazenyl]phenyl]hydrazinylidene]naphthalene-2,7-disulfonate
InChI Key	VSXKEUCERCWGKF-STNZDNLRSA-J
Molecular Formula	C22H12N4Na4O13S4

731

Reactive Red 4, MP Biomedicals™, MP Biomedicals™

CAS: 17681-50-4 Molecular Formula: C32H19ClN8Na4O14S4 Molecular Weight (g/mol): 995.195 InChI Key: HMBFFLCYQUKBIW-UHFFFAOYSA-J Synonym: C.I. 18105,Cibacron Brilliant Red 3B-A PubChem CID: 44134921 IUPAC Name: tetrasodium;5-benzamido-3-[[5-[[4-chloro-6-(4-sulfonatoanilino)-1,3,5-triazin-2-yl]amino]-2-sulfonatophenyl]hydrazinylidene]-4-oxonaphthalene-2,7-disulfonate SMILES: C1=CC=C(C=C1)C(=O)NC2=C3C(=CC(=C2)S(=O)(=O)[O-])C=C(C(=NNC4=C(C=CC(=C4)NC5=NC(=NC(=N5)NC6=CC=C(C=C6)S(=O)(=O)[O-])Cl)S(=O)(=O)[O-])C3=O)S(=O)(=O)[O-].[Na+].[Na+].[Na+].[Na+]

Pricing & Availability
Specifications

PubChem CID	44134921
CAS	17681-50-4
Molecular Weight (g/mol)	995.195
SMILES	C1=CC=C(C=C1)C(=O)NC2=C3C(=CC(=C2)S(=O)(=O)[O-])C=C(C(=NNC4=C(C=CC(=C4)NC5=NC(=NC(=N5)NC6=CC=C(C=C6)S(=O)(=O)[O-])Cl)S(=O)(=O)[O-])C3=O)S(=O)(=O)[O-].[Na+].[Na+].[Na+].[Na+]
Synonym	C.I. 18105,Cibacron Brilliant Red 3B-A
IUPAC Name	tetrasodium;5-benzamido-3-[[5-[[4-chloro-6-(4-sulfonatoanilino)-1,3,5-triazin-2-yl]amino]-2-sulfonatophenyl]hydrazinylidene]-4-oxonaphthalene-2,7-disulfonate
InChI Key	HMBFFLCYQUKBIW-UHFFFAOYSA-J
Molecular Formula	C32H19ClN8Na4O14S4

732

Sudan Black B, MP Biomedicals

CAS: 4197-25-5 Molecular Formula: C29H24N6 Molecular Weight (g/mol): 456.553 InChI Key: YCUVUDODLRLVIC-UHFFFAOYSA-N Synonym: Solvent Black 3 PubChem CID: 61336 IUPAC Name: (2,2-dimethyl-1,3-dihydroperimidin-6-yl)-(4-phenyldiazenylnaphthalen-1-yl)diazene SMILES: CC1(NC2=C3C(=C(C=C2)N=NC4=CC=C(C5=CC=CC=C54)N=NC6=CC=CC=C6)C=CC=C3N1)C

Pricing & Availability
Specifications

PubChem CID	61336
CAS	4197-25-5
Molecular Weight (g/mol)	456.553
SMILES	CC1(NC2=C3C(=C(C=C2)N=NC4=CC=C(C5=CC=CC=C54)N=NC6=CC=CC=C6)C=CC=C3N1)C
Synonym	Solvent Black 3
IUPAC Name	(2,2-dimethyl-1,3-dihydroperimidin-6-yl)-(4-phenyldiazenylnaphthalen-1-yl)diazene
InChI Key	YCUVUDODLRLVIC-UHFFFAOYSA-N
Molecular Formula	C29H24N6

733

Methyl red, For ACS analysis, MP Biomedicals™

CAS: 493-52-7 Molecular Formula: C15H15N3O2 Molecular Weight (g/mol): 269.304 InChI Key: CEQFOVLGLXCDCX-UHFFFAOYSA-N Synonym: 2-(4-Dimethylaminophenylazo)benzoic acid,4-Dimethylaminoazobenzene-2'-carboxylic acid 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
SMILES	CN(C)C1=CC=C(C=C1)N=NC2=CC=CC=C2C(=O)O
Synonym	2-(4-Dimethylaminophenylazo)benzoic acid,4-Dimethylaminoazobenzene-2'-carboxylic acid
IUPAC Name	2-[[4-(dimethylamino)phenyl]diazenyl]benzoic acid
InChI Key	CEQFOVLGLXCDCX-UHFFFAOYSA-N
Molecular Formula	C15H15N3O2

734

Hydroxy naphthol blue disodium salt, For ACS analysis, MP Biomedicals™

CAS: 165660-27-5 Molecular Formula: C20H14N2Na2O11S3 Molecular Weight (g/mol): 600.495 InChI Key: LXJHFXHZWYBBKJ-LUUCHEBKSA-N Synonym: `-(2-naphtholazo-3, 6-disulfonic acid)-2-naphthol-4-sulfonic acid trisodium salt,calcium indicator on sodium chloride PubChem CID: 131849366 IUPAC Name: 3-hydroxy-4-[(2Z)-2-(2-oxo-4-sulfonaphthalen-1-ylidene)hydrazinyl]naphthalene-2,7-disulfonic acid;sodium SMILES: C1=CC=C2C(=C1)C(=CC(=O)C2=NNC3=C4C=CC(=CC4=CC(=C3O)S(=O)(=O)O)S(=O)(=O)O)S(=O)(=O)O.[Na].[Na]

Pricing & Availability
Specifications

PubChem CID	131849366
CAS	165660-27-5
Molecular Weight (g/mol)	600.495
SMILES	C1=CC=C2C(=C1)C(=CC(=O)C2=NNC3=C4C=CC(=CC4=CC(=C3O)S(=O)(=O)O)S(=O)(=O)O)S(=O)(=O)O.[Na].[Na]
Synonym	`-(2-naphtholazo-3, 6-disulfonic acid)-2-naphthol-4-sulfonic acid trisodium salt,calcium indicator on sodium chloride
IUPAC Name	3-hydroxy-4-[(2Z)-2-(2-oxo-4-sulfonaphthalen-1-ylidene)hydrazinyl]naphthalene-2,7-disulfonic acid;sodium
InChI Key	LXJHFXHZWYBBKJ-LUUCHEBKSA-N
Molecular Formula	C20H14N2Na2O11S3

735

Sudan IV, MP Biomedicals™

CAS: 85-83-6 Molecular Formula: C24H20N4O Molecular Weight (g/mol): 380.45 MDL Number: MFCD00003893 InChI Key: KMDLOETUWUPGMB-BXCCFQQFSA-N Synonym: Fat ponceau,Lipid crimson PubChem CID: 6797604 IUPAC Name: 1-[[2-methyl-4-[(2-methylphenyl)diazenyl]phenyl]hydrazinylidene]naphthalen-2-one SMILES: CC1=CC(=CC=C1N\N=C1/C(=O)C=CC2=CC=CC=C12)N=NC1=CC=CC=C1C

Pricing & Availability
Specifications

PubChem CID	6797604
CAS	85-83-6
Molecular Weight (g/mol)	380.45
MDL Number	MFCD00003893
SMILES	CC1=CC(=CC=C1N\N=C1/C(=O)C=CC2=CC=CC=C12)N=NC1=CC=CC=C1C
Synonym	Fat ponceau,Lipid crimson
IUPAC Name	1-[[2-methyl-4-[(2-methylphenyl)diazenyl]phenyl]hydrazinylidene]naphthalen-2-one
InChI Key	KMDLOETUWUPGMB-BXCCFQQFSA-N
Molecular Formula	C24H20N4O

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