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.

496 – 510 of 6,411 results

496

Phenolphthalein, 1% (w/v) in 50% (v/v) Isopropyl Alcohol, Ricca Chemical

Neutralized

Pricing & Availability
Specifications

Percent Purity	1% W/V
CAS	77-09-8
Color	Colorless to Pink
Physical Form	Liquid
Packaging	Natural Poly Bottle
CAS Min %	0.5
Chemical Name or Material	Phenolphthalein
Grade	Indicator
CAS Max %	1.5

497

Universal Indicator, Bogens, Alcoholic, Ricca Chemical

Pricing & Availability
Specifications

Name Note	Alcoholic
CAS	493-52-7
Color	Orange/Red
Physical Form	Liquid
Packaging	Amber Glass Bottle
CAS Min %	0.03
Chemical Name or Material	Universal Indicator, Bogens
Grade	Indicator
CAS Max %	0.03

498

Methyl Orange Indicator, 0.05% (w/v), Ricca Chemical

Indicator for Acid-Base Titrations

Pricing & Availability
Specifications

Percent Purity	0.05% W/V
CAS	7732-18-5
Color	Orange
Physical Form	Liquid
pH	3 to 4
Packaging	Natural Poly Bottle
CAS Min %	0.05
Chemical Name or Material	Methyl Orange Indicator
Grade	Indicator
Concentration	0.05% (w/v)
Solvent or Matrix	Aqueous Solution
CAS Max %	0.05

499

Phenolphthalin 98.0+%, TCI America™

CAS: 81-90-3 Molecular Formula: C20H16O4 Molecular Weight (g/mol): 320.344 MDL Number: MFCD00036135 InChI Key: FFFPYJTVNSSLBQ-UHFFFAOYSA-N PubChem CID: 66494 ChEBI: CHEBI:34915 IUPAC Name: 2-[bis(4-hydroxyphenyl)methyl]benzoic acid SMILES: C1=CC=C(C(=C1)C(C2=CC=C(C=C2)O)C3=CC=C(C=C3)O)C(=O)O

Pricing & Availability
Specifications

PubChem CID	66494
CAS	81-90-3
Molecular Weight (g/mol)	320.344
ChEBI	CHEBI:34915
MDL Number	MFCD00036135
SMILES	C1=CC=C(C(=C1)C(C2=CC=C(C=C2)O)C3=CC=C(C=C3)O)C(=O)O
IUPAC Name	2-[bis(4-hydroxyphenyl)methyl]benzoic acid
InChI Key	FFFPYJTVNSSLBQ-UHFFFAOYSA-N
Molecular Formula	C20H16O4

500

Methyl Orange, 0.1% Aqueous, pH 3.2 to 4.4 Red to Yellow, LabChem™

CAS: 547-58-0 Molecular Formula: C14H14N3NaO3S Molecular Weight (g/mol): 327.334 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 & Availability
Specifications

PubChem CID	23673835
CAS	547-58-0
Molecular Weight (g/mol)	327.334
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

501

Nitro Blue Tetrazolium 98.0+%, TCI America™

CAS: 298-83-9 Molecular Formula: C40H30Cl2N10O6 Molecular Weight (g/mol): 817.644 MDL Number: MFCD00012159 InChI Key: FSVCQIDHPKZJSO-UHFFFAOYSA-L Synonym: 2,2′C-Di-p-nitrophenyl-5,5′C-diphenyl-(3,3′C-dimethoxy)-4,4′C-bisphenyleneditetrazolium Chloride, NBT PubChem CID: 9281 ChEBI: CHEBI:9505 IUPAC Name: 2-[2-methoxy-4-[3-methoxy-4-[3-(4-nitrophenyl)-5-phenyltetrazol-2-ium-2-yl]phenyl]phenyl]-3-(4-nitrophenyl)-5-phenyltetrazol-2-ium;dichloride SMILES: COC1=C(C=CC(=C1)C2=CC(=C(C=C2)[N+]3=NC(=NN3C4=CC=C(C=C4)[N+](=O)[O-])C5=CC=CC=C5)OC)[N+]6=NC(=NN6C7=CC=C(C=C7)[N+](=O)[O-])C8=CC=CC=C8.[Cl-].[Cl-]

Pricing & Availability
Specifications

PubChem CID	9281
CAS	298-83-9
Molecular Weight (g/mol)	817.644
ChEBI	CHEBI:9505
MDL Number	MFCD00012159
SMILES	COC1=C(C=CC(=C1)C2=CC(=C(C=C2)[N+]3=NC(=NN3C4=CC=C(C=C4)[N+](=O)[O-])C5=CC=CC=C5)OC)[N+]6=NC(=NN6C7=CC=C(C=C7)[N+](=O)[O-])C8=CC=CC=C8.[Cl-].[Cl-]
Synonym	2,2′C-Di-p-nitrophenyl-5,5′C-diphenyl-(3,3′C-dimethoxy)-4,4′C-bisphenyleneditetrazolium Chloride, NBT
IUPAC Name	2-[2-methoxy-4-[3-methoxy-4-[3-(4-nitrophenyl)-5-phenyltetrazol-2-ium-2-yl]phenyl]phenyl]-3-(4-nitrophenyl)-5-phenyltetrazol-2-ium;dichloride
InChI Key	FSVCQIDHPKZJSO-UHFFFAOYSA-L
Molecular Formula	C40H30Cl2N10O6

502

Eriochrome Blue Black R Indicator, 0.2% (w/w) in Sodium Chloride, Ricca Chemical

CAS: 2538-85-4 Molecular Formula: C20H13N2NaO5S Molecular Weight (g/mol): Mixture InChI Key: YJUGDMOGPJJWDG-UHFFFAOYSA-M PubChem CID: 23702480 IUPAC Name: sodium;4-[(2-hydroxynaphthalen-1-yl)hydrazinylidene]-3-oxonaphthalene-1-sulfonate SMILES: C1=CC=C2C(=C1)C=CC(=C2NN=C3C4=CC=CC=C4C(=CC3=O)S(=O)(=O)[O-])O.[Na+]

Pricing & Availability
Specifications

PubChem CID	23702480
CAS	2538-85-4
Molecular Weight (g/mol)	Mixture
SMILES	C1=CC=C2C(=C1)C=CC(=C2NN=C3C4=CC=CC=C4C(=CC3=O)S(=O)(=O)[O-])O.[Na+]
IUPAC Name	sodium;4-[(2-hydroxynaphthalen-1-yl)hydrazinylidene]-3-oxonaphthalene-1-sulfonate
InChI Key	YJUGDMOGPJJWDG-UHFFFAOYSA-M
Molecular Formula	C20H13N2NaO5S

503

Bromocresol Green - Methyl Red Solution (Ethanol Soln.) [mixed Indicator], TCI America™

MDL Number: MFCD00134126 Synonym: Methyl Red - Bromocresol Green Solution

Pricing & Availability
Specifications

MDL Number	MFCD00134126
Synonym	Methyl Red - Bromocresol Green Solution

504

Phenolphthalein, 1% (w/v) in 60% (v/v) Isopropyl Alcohol, Neutralized, Ricca Chemical

Pricing & Availability
Specifications

Percent Purity	1% W/V
CAS	77-09-8
Color	Colorless to Pink
Physical Form	Liquid
pH	8
Packaging	Natural Poly Bottle
Chemical Name or Material	Phenolphthalein
Grade	Indicator

505

Alizarin Red S Indicator, 1% (w/v), Ricca Chemical

CAS: 130-22-3 Molecular Formula: C14H7NaO7S Molecular Weight (g/mol): Mixture InChI Key: HFVAFDPGUJEFBQ-UHFFFAOYSA-M PubChem CID: 3955344 ChEBI: CHEBI:87358 IUPAC Name: sodium;3,4-dihydroxy-9,10-dioxoanthracene-2-sulfonate SMILES: C1=CC=C2C(=C1)C(=O)C3=CC(=C(C(=C3C2=O)O)O)S(=O)(=O)[O-].[Na+]

Pricing & Availability
Specifications

PubChem CID	3955344
CAS	130-22-3
Molecular Weight (g/mol)	Mixture
ChEBI	CHEBI:87358
SMILES	C1=CC=C2C(=C1)C(=O)C3=CC(=C(C(=C3C2=O)O)O)S(=O)(=O)[O-].[Na+]
IUPAC Name	sodium;3,4-dihydroxy-9,10-dioxoanthracene-2-sulfonate
InChI Key	HFVAFDPGUJEFBQ-UHFFFAOYSA-M
Molecular Formula	C14H7NaO7S

506

Food Yellow No. 4, TCI America™

CAS: 1934-21-0 Molecular Formula: C16H9N4Na3O9S2 Molecular Weight (g/mol): 534.356 MDL Number: MFCD00148908 InChI Key: UJMBCXLDXJUMFB-UHFFFAOYSA-K PubChem CID: 164825 IUPAC Name: trisodium;5-oxo-1-(4-sulfonatophenyl)-4-[(4-sulfonatophenyl)diazenyl]-4H-pyrazole-3-carboxylate SMILES: C1=CC(=CC=C1N=NC2C(=NN(C2=O)C3=CC=C(C=C3)S(=O)(=O)[O-])C(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+].[Na+]

Pricing & Availability
Specifications

PubChem CID	164825
CAS	1934-21-0
Molecular Weight (g/mol)	534.356
MDL Number	MFCD00148908
SMILES	C1=CC(=CC=C1N=NC2C(=NN(C2=O)C3=CC=C(C=C3)S(=O)(=O)[O-])C(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+].[Na+]
IUPAC Name	trisodium;5-oxo-1-(4-sulfonatophenyl)-4-[(4-sulfonatophenyl)diazenyl]-4H-pyrazole-3-carboxylate
InChI Key	UJMBCXLDXJUMFB-UHFFFAOYSA-K
Molecular Formula	C16H9N4Na3O9S2

507

StatLab™ Tissue Marking Dye

Permanent tissue marking dyes formulated to define margins without bleeding or fading.

Pricing & Availability
Specifications

Form	Liquid
Product Type	Tissue Marking Dye
Quantity	8 oz. Bottle
For Use With (Application)	Tissue Marking

508

Methyl Purple Indicator, pH 4.8 to 5.4 Purple to Green, Certified, LabChem™

Pricing & Availability
Specifications

Linear Formula	C₁₅H₁₄N₃O₂Na
Color	Black/Green
Physical Form	Liquid
Chemical Name or Material	Methyl Purple Indicator
Grade	Certified
Identification	Passes Test
Name Note	pH 4.8 to 5.4 Purple to Green
CAS	845-10-3
Health Hazard 3	GHS P Statement Keep away from heat, sparks, open flames, hot surfaces. No smoking. Keep container tightly closed. Ground/bond container and receiving equipment. Use explosion-proof electrical, ventilating, lighting equipment. Use only non-sparking tools. Take precautionary measures against static discharge. Wear protective gloves, eye protection. Wash exposed skin thoroughly after handling. If on skin (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical advice/attention. Store in a cool, well-ventilated place. Dispose of contents/container to comply with local, state and federal regulations.
Decomposition Information	Sulfur compounds; Carbon monoxide; Carbon dioxide; Nitrogen oxides
Health Hazard 2	GHS H Statement Flammable liquid and vapor. Causes serious eye irritation.
Flash Point	33°C
Packaging	Poly Bottle
Solubility Information	Soluble in water
Health Hazard 1	Warning
Recommended Storage	Room Temperature
Formula Weight	291.28
CAS Max %	0.04

509

Starch Indicator, Preserved with Salicylic Acid (Mercury Free), Certified, 1%, LabChem™

Pricing & Availability
Specifications

Name Note	Preserved with Salicylic Acid (Mercury Free)
CAS	69-72-7
Health Hazard 3	GHS P Statement If in contact with skin or eyes, rinse thoroughly with water for 15-20 minutes. If swallowed, get medical attention.
Health Hazard 2	GHS H Statement Solution is not hazardous.
Physical Form	Liquid
Chemical Name or Material	Starch Indicator
Grade	Certified
Recommended Storage	Room Temperature
CAS Max %	0.1

510

Acid Black 1 97.0+%, TCI America™

CAS: 1064-48-8 Molecular Formula: C22H14N6Na2O9S2 Molecular Weight (g/mol): 616.487 MDL Number: MFCD00004017 InChI Key: HKBVRFLHNUEVRO-UHFFFAOYSA-L Synonym: Amido Black 10B, Aminoschwarz 10B, Buffalo Black NBR, Naphthol Blue Black 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	1064-48-8
Molecular Weight (g/mol)	616.487
MDL Number	MFCD00004017
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	Amido Black 10B, Aminoschwarz 10B, Buffalo Black NBR, Naphthol Blue Black
IUPAC Name	disodium;4-amino-3-[(4-nitrophenyl)diazenyl]-5-oxo-6-(phenylhydrazinylidene)naphthalene-2,7-disulfonate
InChI Key	HKBVRFLHNUEVRO-UHFFFAOYSA-L
Molecular Formula	C22H14N6Na2O9S2

Stains and Dyes

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Phenolphthalein, 1% (w/v) in 50% (v/v) Isopropyl Alcohol, Ricca Chemical Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Universal Indicator, Bogens, Alcoholic, Ricca Chemical Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Methyl Orange Indicator, 0.05% (w/v), Ricca Chemical Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Phenolphthalin 98.0+%, TCI America™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Nitro Blue Tetrazolium 98.0+%, TCI America™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Eriochrome Blue Black R Indicator, 0.2% (w/w) in Sodium Chloride, Ricca Chemical Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Bromocresol Green - Methyl Red Solution (Ethanol Soln.) [mixed Indicator], TCI America™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Phenolphthalein, 1% (w/v) in 60% (v/v) Isopropyl Alcohol, Neutralized, Ricca Chemical Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Alizarin Red S Indicator, 1% (w/v), Ricca Chemical Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Food Yellow No. 4, TCI America™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

StatLab™ Tissue Marking Dye Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Acid Black 1 97.0+%, TCI America™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More