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.

1 – 15 of 66 results

Hydroxynaphthol Blue, Indicator for Metal Titration, Honeywell Fluka™

CAS: 63451-35-4 Molecular Formula: C20H11N2Na3O11S3 Molecular Weight (g/mol): 620.46 MDL Number: MFCD00036393 InChI Key: JQECMNGWLIFQLL-UHFFFAOYSA-K PubChem CID: 44134769 IUPAC Name: trisodium;3-hydroxy-4-[2-(2-oxo-4-sulfonatonaphthalen-1-ylidene)hydrazinyl]naphthalene-2,7-disulfonate 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+].[Na+]

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Specifications

PubChem CID	44134769
CAS	63451-35-4
Molecular Weight (g/mol)	620.46
MDL Number	MFCD00036393
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+].[Na+]
IUPAC Name	trisodium;3-hydroxy-4-[2-(2-oxo-4-sulfonatonaphthalen-1-ylidene)hydrazinyl]naphthalene-2,7-disulfonate
InChI Key	JQECMNGWLIFQLL-UHFFFAOYSA-K
Molecular Formula	C20H11N2Na3O11S3

Murexide, For Complexometry, Honeywell Fluka™

CAS: 3051-09-0 Molecular Formula: C8H3N5O6-2 Molecular Weight (g/mol): 265.141 MDL Number: MFCD00012777 InChI Key: MUMMBXDKKJEASE-UHFFFAOYSA-L PubChem CID: 51381221 IUPAC Name: 6-oxo-5-[(2,4,6-trioxo-1,3-diazinan-5-ylidene)amino]-1H-pyrimidine-2,4-diolate SMILES: C1(=C(N=C(NC1=O)[O-])[O-])N=C2C(=O)NC(=O)NC2=O

Pricing and Availability
Specifications

PubChem CID	51381221
CAS	3051-09-0
Molecular Weight (g/mol)	265.141
MDL Number	MFCD00012777
SMILES	C1(=C(N=C(NC1=O)[O-])[O-])N=C2C(=O)NC(=O)NC2=O
IUPAC Name	6-oxo-5-[(2,4,6-trioxo-1,3-diazinan-5-ylidene)amino]-1H-pyrimidine-2,4-diolate
InChI Key	MUMMBXDKKJEASE-UHFFFAOYSA-L
Molecular Formula	C8H3N5O6-2

Tetrahydroxyquinone, Honeywell Fluka™

CAS: 5676-48-2 Molecular Formula: C6H8O8 Molecular Weight (g/mol): 208.122 MDL Number: MFCD00001597 InChI Key: PTIMJXRLFTZAOV-UHFFFAOYSA-N PubChem CID: 19849282 IUPAC Name: 2,3,5,6-tetrahydroxycyclohexa-2,5-diene-1,4-dione;dihydrate SMILES: C1(=C(C(=O)C(=C(C1=O)O)O)O)O.O.O

Pricing and Availability
Specifications

PubChem CID	19849282
CAS	5676-48-2
Molecular Weight (g/mol)	208.122
MDL Number	MFCD00001597
SMILES	C1(=C(C(=O)C(=C(C1=O)O)O)O)O.O.O
IUPAC Name	2,3,5,6-tetrahydroxycyclohexa-2,5-diene-1,4-dione;dihydrate
InChI Key	PTIMJXRLFTZAOV-UHFFFAOYSA-N
Molecular Formula	C6H8O8

Calconcarboxylic Acid, Honeywell Fluka™

CAS: 3737-95-9 Molecular Formula: C21H14N2O7S Molecular Weight (g/mol): 438.41 MDL Number: MFCD00004078 InChI Key: ULIVOAKVRBXKKS-PYCFMQQDSA-N PubChem CID: 5895210 IUPAC Name: 3-hydroxy-4-[(2Z)-2-(2-oxo-4-sulfonaphthalen-1-ylidene)hydrazinyl]naphthalene-2-carboxylic acid SMILES: C1=CC=C2C(=C1)C=C(C(=C2NN=C3C4=CC=CC=C4C(=CC3=O)S(=O)(=O)O)O)C(=O)O

Pricing and Availability
Specifications

PubChem CID	5895210
CAS	3737-95-9
Molecular Weight (g/mol)	438.41
MDL Number	MFCD00004078
SMILES	C1=CC=C2C(=C1)C=C(C(=C2NN=C3C4=CC=CC=C4C(=CC3=O)S(=O)(=O)O)O)C(=O)O
IUPAC Name	3-hydroxy-4-[(2Z)-2-(2-oxo-4-sulfonaphthalen-1-ylidene)hydrazinyl]naphthalene-2-carboxylic acid
InChI Key	ULIVOAKVRBXKKS-PYCFMQQDSA-N
Molecular Formula	C21H14N2O7S

Tiron, Indicator, Honeywell Fluka™

CAS: 270573-71-2 Molecular Formula: C6H6Na2O9S2 Molecular Weight (g/mol): 332.205 MDL Number: MFCD00149531 InChI Key: ZLRROLLKQDRDPI-UHFFFAOYSA-L PubChem CID: 2723960 IUPAC Name: disodium;4,5-dihydroxybenzene-1,3-disulfonate;hydrate SMILES: C1=C(C=C(C(=C1S(=O)(=O)[O-])O)O)S(=O)(=O)[O-].O.[Na+].[Na+]

Pricing and Availability
Specifications

PubChem CID	2723960
CAS	270573-71-2
Molecular Weight (g/mol)	332.205
MDL Number	MFCD00149531
SMILES	C1=C(C=C(C(=C1S(=O)(=O)[O-])O)O)S(=O)(=O)[O-].O.[Na+].[Na+]
IUPAC Name	disodium;4,5-dihydroxybenzene-1,3-disulfonate;hydrate
InChI Key	ZLRROLLKQDRDPI-UHFFFAOYSA-L
Molecular Formula	C6H6Na2O9S2

Thymol Blue Indicator, Honeywell Fluka™

CAS: 76-61-9 Molecular Formula: C27H30O5S Molecular Weight (g/mol): 466.592 MDL Number: MFCD00005869 InChI Key: PRZSXZWFJHEZBJ-UHFFFAOYSA-N Synonym: Thymolsulfonphthalein 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 and 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	Thymolsulfonphthalein
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

o-Cresolphthalein Complex, Honeywell Fluka™

CAS: 2411-89-4 Molecular Formula: C32H32N2O12 Molecular Weight (g/mol): 636.61 MDL Number: MFCD00005911 InChI Key: IYZPEGVSBUNMBE-UHFFFAOYSA-N PubChem CID: 75485 IUPAC Name: 2-[[5-[1-[3-[[bis(carboxymethyl)amino]methyl]-4-hydroxy-5-methylphenyl]-3-oxo-2-benzofuran-1-yl]-2-hydroxy-3-methylphenyl]methyl-(carboxymethyl)amino]acetic acid SMILES: CC1=CC(=CC(CN(CC(O)=O)CC(O)=O)=C1O)C1(OC(=O)C2=CC=CC=C12)C1=CC(C)=C(O)C(CN(CC(O)=O)CC(O)=O)=C1

Pricing and Availability
Specifications

PubChem CID	75485
CAS	2411-89-4
Molecular Weight (g/mol)	636.61
MDL Number	MFCD00005911
SMILES	CC1=CC(=CC(CN(CC(O)=O)CC(O)=O)=C1O)C1(OC(=O)C2=CC=CC=C12)C1=CC(C)=C(O)C(CN(CC(O)=O)CC(O)=O)=C1
IUPAC Name	2-[[5-[1-[3-[[bis(carboxymethyl)amino]methyl]-4-hydroxy-5-methylphenyl]-3-oxo-2-benzofuran-1-yl]-2-hydroxy-3-methylphenyl]methyl-(carboxymethyl)amino]acetic acid
InChI Key	IYZPEGVSBUNMBE-UHFFFAOYSA-N
Molecular Formula	C32H32N2O12

Tashiro's indicator solution, In ethanol, Honeywell Fluka™

In ethanol

Pricing and Availability
Specifications

Health Hazard 2	P210-P280-P305 + P351 + P338-P337 + P313-P403 + P235
Chemical Name or Material	Tashiro’s indicator solution

Universal Indicator Solution Ph, Honeywell Fluka™

pH 3-10

Pricing and Availability
Specifications

Health Hazard 3	H225-H319
MDL Number	MFCD00148741
Health Hazard 2	P210-P280-P305 + P351 + P338-P337 + P313-P403 + P235
Flash Point	19°C (66.2°F)
pH	3 to 10
Chemical Name or Material	Universal Indicator Solution Ph

Methyl Orange solution, Honeywell Fluka™

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 and 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

Dimethyl Yellow Indicator, Honeywell Fluka™

CAS: 60-11-7 Molecular Formula: C14H15N3 Molecular Weight (g/mol): 225.30 MDL Number: MFCD00008308 InChI Key: JCYPECIVGRXBMO-UHFFFAOYSA-N PubChem CID: 6053 ChEBI: CHEBI:17903 IUPAC Name: N,N-dimethyl-4-phenyldiazenylaniline SMILES: CN(C)C1=CC=C(C=C1)N=NC1=CC=CC=C1

Pricing and Availability
Specifications

PubChem CID	6053
CAS	60-11-7
Molecular Weight (g/mol)	225.30
ChEBI	CHEBI:17903
MDL Number	MFCD00008308
SMILES	CN(C)C1=CC=C(C=C1)N=NC1=CC=CC=C1
IUPAC Name	N,N-dimethyl-4-phenyldiazenylaniline
InChI Key	JCYPECIVGRXBMO-UHFFFAOYSA-N
Molecular Formula	C14H15N3

Tashiro's indicator solution, in methanol, Honeywell Fluka™

In methanol

Pricing and Availability

Ferroin Indicator Solution, 0.025M, Honeywell Fluka™

CAS: 14634-91-4 Molecular Formula: C36H24FeN6O4S Molecular Weight (g/mol): 692.53 MDL Number: MFCD00036428 InChI Key: CIWXFRVOSDNDJZ-UHFFFAOYSA-L PubChem CID: 84567 IUPAC Name: iron(2+);1,10-phenanthroline;sulfate SMILES: [Fe++].[O-]S([O-])(=O)=O.C1=CN=C2C(C=CC3=CC=CN=C23)=C1.C1=CN=C2C(C=CC3=CC=CN=C23)=C1.C1=CN=C2C(C=CC3=CC=CN=C23)=C1

Pricing and Availability
Specifications

PubChem CID	84567
CAS	14634-91-4
Molecular Weight (g/mol)	692.53
MDL Number	MFCD00036428
SMILES	[Fe++].[O-]S([O-])(=O)=O.C1=CN=C2C(C=CC3=CC=CN=C23)=C1.C1=CN=C2C(C=CC3=CC=CN=C23)=C1.C1=CN=C2C(C=CC3=CC=CN=C23)=C1
IUPAC Name	iron(2+);1,10-phenanthroline;sulfate
InChI Key	CIWXFRVOSDNDJZ-UHFFFAOYSA-L
Molecular Formula	C36H24FeN6O4S

Phenolphthalein solution, Indicator, Reag. Ph. Eur., 1% in ethanol, Honeywell Fluka™

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 SMILES: OC1=CC=C(C=C1)C1(OC(=O)C2=CC=CC=C12)C1=CC=C(O)C=C1

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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
InChI Key	KJFMBFZCATUALV-UHFFFAOYSA-N
Molecular Formula	C20H14O4

Phenol Red Indicator, ACS Reagent, Honeywell Fluka™

CAS: 143-74-8 Molecular Formula: C19H14O5S Molecular Weight (g/mol): 354.38 MDL Number: MFCD00003552 InChI Key: BELBBZDIHDAJOR-UHFFFAOYSA-N Synonym: Phenolsulfonphthalein 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 and 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
Synonym	Phenolsulfonphthalein
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

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