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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586 – 600 of 7,126 results

586

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Thermo Scientific Chemicals Nitrazine Yellow, indicator grade

CAS: 1-1-5424 Molecular Formula: C5H5N3O2 Molecular Weight (g/mol): 139.11 MDL Number: MFCD00003938 InChI Key: ZAGZIOYVEIDDJA-UHFFFAOYSA-N Synonym: 2-(2,4-Dinitrophenylazo)-1-naphthol-3,6-disulfonic acid, disodium salt,3-(2, 4-Dinitrophenylazo)-4-hydroxy-2, 7-naphthalenedisulfonic acid,2-(2, 4-Dinitrophenylazo)-1-naphthol-3, 6-disulfonic acid PubChem CID: 72656 IUPAC Name: 3-aminopyrazine-2-carboxylic acid SMILES: C1=CN=C(C(=N1)C(=O)O)N

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Specifications

PubChem CID	72656
CAS	1-1-5424
Molecular Weight (g/mol)	139.11
MDL Number	MFCD00003938
SMILES	C1=CN=C(C(=N1)C(=O)O)N
Synonym	2-(2,4-Dinitrophenylazo)-1-naphthol-3,6-disulfonic acid, disodium salt,3-(2, 4-Dinitrophenylazo)-4-hydroxy-2, 7-naphthalenedisulfonic acid,2-(2, 4-Dinitrophenylazo)-1-naphthol-3, 6-disulfonic acid
IUPAC Name	3-aminopyrazine-2-carboxylic acid
InChI Key	ZAGZIOYVEIDDJA-UHFFFAOYSA-N
Molecular Formula	C5H5N3O2

587

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Thermo Scientific Chemicals Chlorophenol Red, sodium salt, pure, water soluble

CAS: 123333-64-2 Molecular Formula: C19H11Cl2O5S Molecular Weight (g/mol): 422.25 MDL Number: MFCD00151199 InChI Key: QXTPRQZMDKBTAI-UNOMPAQXSA-M Synonym: 3', 3''-Dichlorophenolsulfonephthalein, sodium salt PubChem CID: 131846007 SMILES: OC1=CC=C(C=C1Cl)C(=C1/C=CC(=O)C(Cl)=C1)\C1=CC=CC=C1S([O-])(=O)=O

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Specifications

PubChem CID	131846007
CAS	123333-64-2
Molecular Weight (g/mol)	422.25
MDL Number	MFCD00151199
SMILES	OC1=CC=C(C=C1Cl)C(=C1/C=CC(=O)C(Cl)=C1)\C1=CC=CC=C1S([O-])(=O)=O
Synonym	3', 3''-Dichlorophenolsulfonephthalein, sodium salt
InChI Key	QXTPRQZMDKBTAI-UNOMPAQXSA-M
Molecular Formula	C19H11Cl2O5S

588

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Methyl Viologen hydrate, 98%

CAS: 1910-42-5 Molecular Formula: C12H14Cl2N2 Molecular Weight (g/mol): 257.16 MDL Number: MFCD00150001 InChI Key: FIKAKWIAUPDISJ-UHFFFAOYSA-L Synonym: Paraquat, dichloride PubChem CID: 15938 ChEBI: CHEBI:28786 IUPAC Name: 1-methyl-4-(1-methylpyridin-1-ium-4-yl)pyridin-1-ium;dichloride SMILES: [Cl-].[Cl-].C[N+]1=CC=C(C=C1)C1=CC=[N+](C)C=C1

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Specifications

PubChem CID	15938
CAS	1910-42-5
Molecular Weight (g/mol)	257.16
ChEBI	CHEBI:28786
MDL Number	MFCD00150001
SMILES	[Cl-].[Cl-].C[N+]1=CC=C(C=C1)C1=CC=[N+](C)C=C1
Synonym	Paraquat, dichloride
IUPAC Name	1-methyl-4-(1-methylpyridin-1-ium-4-yl)pyridin-1-ium;dichloride
InChI Key	FIKAKWIAUPDISJ-UHFFFAOYSA-L
Molecular Formula	C12H14Cl2N2

589

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Indoine Blue, Thermo Scientific™

CAS: 4569-88-4 Molecular Formula: C30H24ClN5O Molecular Weight (g/mol): 506.01 MDL Number: MFCD00011924 InChI Key: SCMDRBZEIUMBBQ-UHFFFAOYSA-N PubChem CID: 9575841 SMILES: [Cl-].CC1=CC2=NC3=CC(C)=C(N)C=C3[N+](C3=CC=CC=C3)=C2C=C1N\N=C1/C(=O)C=CC2=CC=CC=C12

Pricing & Availability
Specifications

PubChem CID	9575841
CAS	4569-88-4
Molecular Weight (g/mol)	506.01
MDL Number	MFCD00011924
SMILES	[Cl-].CC1=CC2=NC3=CC(C)=C(N)C=C3[N+](C3=CC=CC=C3)=C2C=C1N\N=C1/C(=O)C=CC2=CC=CC=C12
InChI Key	SCMDRBZEIUMBBQ-UHFFFAOYSA-N
Molecular Formula	C30H24ClN5O

590

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

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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

591

Primulin, MP Biomedicals™

CAS: 8064-60-6 Molecular Formula: C21H14N3NaO3S3 Molecular Weight (g/mol): 475.531 MDL Number: MFCD00005798 InChI Key: RSRNHSYYBLEMOI-UHFFFAOYSA-M Synonym: Direct Yellow 59,C.I. 49000 PubChem CID: 3769888 IUPAC Name: sodium;2-[2-(4-aminophenyl)-1,3-benzothiazol-6-yl]-6-methyl-1,3-benzothiazole-7-sulfonate SMILES: CC1=C(C2=C(C=C1)N=C(S2)C3=CC4=C(C=C3)N=C(S4)C5=CC=C(C=C5)N)S(=O)(=O)[O-].[Na+]

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Specifications

PubChem CID	3769888
CAS	8064-60-6
Molecular Weight (g/mol)	475.531
MDL Number	MFCD00005798
SMILES	CC1=C(C2=C(C=C1)N=C(S2)C3=CC4=C(C=C3)N=C(S4)C5=CC=C(C=C5)N)S(=O)(=O)[O-].[Na+]
Synonym	Direct Yellow 59,C.I. 49000
IUPAC Name	sodium;2-[2-(4-aminophenyl)-1,3-benzothiazol-6-yl]-6-methyl-1,3-benzothiazole-7-sulfonate
InChI Key	RSRNHSYYBLEMOI-UHFFFAOYSA-M
Molecular Formula	C21H14N3NaO3S3

592

Trypan Blue 40% 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

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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

593

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+]

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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

594

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Coumarin 2, 99%, laser grade

CAS: 26078-25-1 Molecular Formula: C13H15NO2 Molecular Weight (g/mol): 217.268 MDL Number: MFCD00006860 InChI Key: QZXAEJGHNXJTSE-UHFFFAOYSA-N Synonym: 4, 6-Dimethyl-7-ethylaminocoumarin PubChem CID: 96929 IUPAC Name: 7-(ethylamino)-4,6-dimethylchromen-2-one SMILES: CCNC1=C(C=C2C(=CC(=O)OC2=C1)C)C

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Specifications

PubChem CID	96929
CAS	26078-25-1
Molecular Weight (g/mol)	217.268
MDL Number	MFCD00006860
SMILES	CCNC1=C(C=C2C(=CC(=O)OC2=C1)C)C
Synonym	4, 6-Dimethyl-7-ethylaminocoumarin
IUPAC Name	7-(ethylamino)-4,6-dimethylchromen-2-one
InChI Key	QZXAEJGHNXJTSE-UHFFFAOYSA-N
Molecular Formula	C13H15NO2

595

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Cresyl Violet acetate, pure, certified

CAS: 10510-54-0 Molecular Formula: C18H15N3O3 Molecular Weight (g/mol): 321.34 MDL Number: MFCD00013151,MFCD00013151 InChI Key: XKOCOMKJPWEOHX-UHFFFAOYSA-M PubChem CID: 44134641 SMILES: CC([O-])=O.NC1=CC2=[O+]C3=C(N=C2C=C1)C1=CC=CC=C1C(N)=C3

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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
InChI Key	XKOCOMKJPWEOHX-UHFFFAOYSA-M
Molecular Formula	C18H15N3O3

596

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Eosin B, pure, certified

CAS: 548-24-3 Molecular Formula: C₂₀H₆Br₂N₂Na₂O₉ MDL Number: MFCD00005041 Synonym: 4',5'-Dibromo-2',7'-dinitrofluorescein, disodium salt,4', 5'-Dibromo-2', 7'-dinitrofluorescein,Eosin Bluish

Pricing & Availability
Specifications

CAS	548-24-3
MDL Number	MFCD00005041
Synonym	4',5'-Dibromo-2',7'-dinitrofluorescein, disodium salt,4', 5'-Dibromo-2', 7'-dinitrofluorescein,Eosin Bluish
Molecular Formula	C₂₀H₆Br₂N₂Na₂O₉

597

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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

598

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Thermo Scientific Chemicals Cresyl Violet acetate, pure, high purity biological stain

CAS: 10510-54-0 Molecular Formula: C18H15N3O3 Molecular Weight (g/mol): 321.34 MDL Number: MFCD00013151,MFCD00013151 InChI Key: XKOCOMKJPWEOHX-UHFFFAOYSA-M 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
IUPAC Name	acetic acid;5-iminobenzo[a]phenoxazin-9-amine
InChI Key	XKOCOMKJPWEOHX-UHFFFAOYSA-M
Molecular Formula	C18H15N3O3

599

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

Pricing & Availability
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

600

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

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