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Staining Reagents

Stains, staining systems, and blocking agents in a variety of types, grades, molecular weights, purities, and pH ranges; used to elucidate important structures of microorganisms including bacteria, viruses, protozoa, etc.
Stains and Dyes (9,318)
Tissue Stain Blocking Reagents (81)

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1,156 – 1,170 of 7,270 results
1,157

Ninhydrin, 0.35% (w/v) in Isopropyl Alcohol, Ricca Chemical

CAS: 485-47-2 Molecular Formula: C9H6O4 Molecular Weight (g/mol): Mixture 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

PubChem CID 10236
CAS 485-47-2
Molecular Weight (g/mol) Mixture
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
1,158

New Methylene Blue N, For Reticulocytes, Certified, LabChem™

CAS: 6586-05-6  InChI Key: OPVUYBOFNBJFGV-UHFFFAOYSA-L PubChem CID: 3083969

PubChem CID 3083969
CAS 6586-05-6 
InChI Key OPVUYBOFNBJFGV-UHFFFAOYSA-L
1,159

Bromocresol Green - Methyl Red, Alcoholic, for Alkalinity, Certified, LabChem™

Boiling Point 78°C
Linear Formula C21H14Br4O5S·Na
Color Green
Physical Form Liquid
UN Number UN1170
Chemical Name or Material Bromocresol Green - Methyl Red
Grade Certified
Identification Passes Test
Density 790kg/m3
Name Note Alcoholic, for Alkalinity
CAS 845-10-3
Health Hazard 3 GHS P Statement
Obtain special instructions before use.
Do not handle until all safety precautions have been read and understood.
Keep away from heat, hot surfaces, open flames, sparks.
No smoking.
Keep container tightly closed.
Ground/bond container and receiving equipment.
Use explosion-proof electrical, lighting, ventilating equipment.
Use only non-sparking tools.
Take precautionary measures against static discharge.
Do not breathe mist, spray, vapors.
Wear eye protection, face protection, protective clothing, protective gloves.
Wash exposed skin thoroughly after handling.
Do not eat, drink or smoke when using this product.
If exposed or concerned: Get medical attention.
If on skin (or hair): Remove/Take off immediately all contaminated clothing.
Rinse skin with water/shower.
In case of fire: Use carbon dioxide (CO2), powder, alcohol-resistant foam to extinguish.
Store locked up in a cool, well-ventilated place.
Dispose of contents/container to comply with local, state and federal regulations.
Decomposition Information Fume; Carbon monoxide; Carbon dioxide; May release flammable gases
Health Hazard 2 GHS H Statement
Highly flammable liquid and vapor.
May cause cancer.
Suspected of damaging the unborn child.
Causes damage to organs (central nervous system, optic nerve) (oral, dermal).
Flash Point 13°C
Solubility Information Soluble in water
Health Hazard 1 Danger
Recommended Storage Room Temperature
EINECS Number 200-578-6
Formula Weight 720.06
Specific Gravity 790kg/m3
CAS Max % 0.04
Melting Point -115°C
1,160

Fehling's Solution 'B', Alkaline No. 2, Certified, LabChem™

Name Note Alkaline No. 2
Linear Formula KNaC4H4O6·4H2O
CAS 1310-73-2
Health Hazard 2 GHS H Statement
Causes severe skin burns and eye damage.
Physical Form Liquid
Health Hazard 1 Danger
UN Number UN1824
Grade Certified
Recommended Storage Room Temperature
Formula Weight 282.22
CAS Max % 4.5
1,161

StatLab™ ClearView Eosin

An ideal counterstain for ClearView hematoxylin.

1,162

Thymol Blue Indicator, 0.04% (w/v), Ricca Chemical

CAS: 62625-21-2 Molecular Formula: C27H29NaO5S Molecular Weight (g/mol): Mixture MDL Number: MFCD00151093 InChI Key: OCMIKNBSIRSUPI-FRWNMSGJSA-M PubChem CID: 23692293 IUPAC Name: sodium 2-{[4-hydroxy-2-methyl-5-(propan-2-yl)phenyl][(1E)-2-methyl-4-oxo-5-(propan-2-yl)cyclohexa-2,5-dien-1-ylidene]methyl}benzene-1-sulfonate SMILES: [Na+].CC(C)C1=C\C(=C(\C2=CC(C(C)C)=C(O)C=C2C)C2=C(C=CC=C2)S([O-])(=O)=O)C(C)=CC1=O

PubChem CID 23692293
CAS 62625-21-2
Molecular Weight (g/mol) Mixture
MDL Number MFCD00151093
SMILES [Na+].CC(C)C1=C\C(=C(\C2=CC(C(C)C)=C(O)C=C2C)C2=C(C=CC=C2)S([O-])(=O)=O)C(C)=CC1=O
IUPAC Name sodium 2-{[4-hydroxy-2-methyl-5-(propan-2-yl)phenyl][(1E)-2-methyl-4-oxo-5-(propan-2-yl)cyclohexa-2,5-dien-1-ylidene]methyl}benzene-1-sulfonate
InChI Key OCMIKNBSIRSUPI-FRWNMSGJSA-M
Molecular Formula C27H29NaO5S
1,163

Starch Indicator, 0.5% (w/v), with Chloroform preservative, Ricca Chemical

Name Note With Chloroform Preservative
Percent Purity 0.5% W/V
CAS 67-66-3
Color Colorless
Physical Form Liquid
pH 5 to 7
CAS Min % 0.1
Chemical Name or Material Starch Indicator
Grade Indicator
Concentration 0.5% (w/v)
Solvent or Matrix Aqueous Solution
CAS Max % 0.4
1,164

Acid Red 91, TCI America™

CAS: 548-24-3 Molecular Formula: C20H8Br2N2O9 MDL Number: MFCD00005041 Synonym: Eosin Bluish, Imperial Red

CAS 548-24-3
MDL Number MFCD00005041
Synonym Eosin Bluish, Imperial Red
Molecular Formula C20H8Br2N2O9
1,165

Pigment Green 7, TCI America™

CAS: 1328-53-6 Molecular Formula: C32Cl16CuN8 Molecular Weight (g/mol): 1127.154 MDL Number: MFCD00053950 InChI Key: ABFKYPFPQRDCGM-UHFFFAOYSA-N Synonym: Phthalocyanine Green PubChem CID: 6508016 SMILES: C12=C(C(=C(C(=C1Cl)Cl)Cl)Cl)C3=NC4=NC(=NC5=NC(=NC6=C7C(=C([N-]6)N=C2[N-]3)C(=C(C(=C7Cl)Cl)Cl)Cl)C8=C5C(=C(C(=C8Cl)Cl)Cl)Cl)C9=C4C(=C(C(=C9Cl)Cl)Cl)Cl.[Cu+2]

PubChem CID 6508016
CAS 1328-53-6
Molecular Weight (g/mol) 1127.154
MDL Number MFCD00053950
SMILES C12=C(C(=C(C(=C1Cl)Cl)Cl)Cl)C3=NC4=NC(=NC5=NC(=NC6=C7C(=C([N-]6)N=C2[N-]3)C(=C(C(=C7Cl)Cl)Cl)Cl)C8=C5C(=C(C(=C8Cl)Cl)Cl)Cl)C9=C4C(=C(C(=C9Cl)Cl)Cl)Cl.[Cu+2]
Synonym Phthalocyanine Green
InChI Key ABFKYPFPQRDCGM-UHFFFAOYSA-N
Molecular Formula C32Cl16CuN8
1,166

Thymolphthalein TS/RS, 0.1% (w/v) in Alcohol, Ricca Chemical

Percent Purity 0.1% W/V
CAS 125-20-2
Color Colorless
Packaging Natural Poly Bottle
Grade Indicator
1,167

Methyl Orange (0.1% in Water) [for Titration], TCI America™

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+]

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
1,168

Bromophenol Blue Indicator, 0.1% (w/v), Ricca Chemical

Percent Purity 0.1% W/V
CAS 7732-18-5
Color Dark Reddish Purple
Physical Form Liquid
pH 4
Packaging Natural Poly Bottle
CAS Min % 0.1
Chemical Name or Material Bromophenol Blue Indicator
Grade Indicator
Concentration 0.1% (w/v)
Solvent or Matrix Aqueous Solution
CAS Max % 0.1
1,169

Magneson, TCI America™

CAS: 74-39-5 Molecular Formula: C12H9N3O4 Molecular Weight (g/mol): 259.22 MDL Number: MFCD00007310 InChI Key: BIFFKKLAAIGZBV-UHFFFAOYSA-N Synonym: Azo Violet, 4-(4-Nitrophenylazo)resorcinol PubChem CID: 5717413 IUPAC Name: 3-hydroxy-4-[2-(4-nitrophenyl)hydrazin-1-ylidene]cyclohexa-2,5-dien-1-one SMILES: OC1=CC(=O)C=CC1=NNC1=CC=C(C=C1)[N+]([O-])=O

PubChem CID 5717413
CAS 74-39-5
Molecular Weight (g/mol) 259.22
MDL Number MFCD00007310
SMILES OC1=CC(=O)C=CC1=NNC1=CC=C(C=C1)[N+]([O-])=O
Synonym Azo Violet, 4-(4-Nitrophenylazo)resorcinol
IUPAC Name 3-hydroxy-4-[2-(4-nitrophenyl)hydrazin-1-ylidene]cyclohexa-2,5-dien-1-one
InChI Key BIFFKKLAAIGZBV-UHFFFAOYSA-N
Molecular Formula C12H9N3O4
1,170

Starch Indicator, 2% (w/v), Mercury Free, for Iodometric Titrations, Ricca Chemical

Iodometric Titrations

Percent Purity 2% W/V
CAS 69-72-7
Color White
Physical Form Liquid
pH 5 to 7
CAS Min % 0.19
Chemical Name or Material Starch Indicator
Grade Indicator
Concentration 2% (w/v)
Shelf Life 24 months
Solvent or Matrix Aqueous Solution
CAS Max % 0.2