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.

Clearance (12)
New Lab Start-Up (25)

special interests

Available on GSA/VA Contract (198)
SureTRACE (1)
Fast Shipping (157)
Greener Choice (20)
Production Products (37)
Science Education (164)
Small and Specialty Supplier (2,410)

Quantity

0.036 g (1)
0.25 g (1)
1 L (189)
1 Pint (2)
1 g (139)
1 gal. (2)
1 kg (55)

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Color

Amber (12)
Beige (6)
Beige or Brown to Pink (2)
Beige or White to Yellow (3)
Beige to Brown (7)
Beige to Pink or Brown (3)
Beige to White or Tan (2)

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Molecular Weight (g/mol)

1001.857 (2)
1017.63 (3)
1019.644 (11)
1037.99 (1)
1049.845 (3)
108.14 (3)
1086.36 g/mol (1)

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Grade

ACS (214)
ACS Reagent (70)
APHA (5)
ASTM (6)
Analysis (3)
Analytical Reagent (2)
BAKER ANALYZED™ ACS Reagent (9)

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Product Type

1% Focus Acid Alcohol (2)
AFB Stain (1)
Acetate Buffer (1)
Acetocarmine (2)
Acetone Decolorizer (1)
Acetone-Alcohol (5)
Acetone-Alcohol, Carbol Fuchsin (1)

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Percent Purity

≥40.0% (HPLC) (1)
≥42% (1)
≥42.0% (carminic acid) (3)
≥55% (1)
≥60% (TiCl3-titr.) (on substance as is) (2)
≥65% dye content (3)
≥70% (5)

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pH

>1.6 (3)
>12 (5)
>4 (2)
>5 (4)
>5.4 (13)
<1 (4)
<2 (7)

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Recommended Applications

Healthcare (140)

Volume (Metric)

0.75 mL/Ampule (6)
1 L (4)
1 L Stain, 1 L Decolorizer (1)
10 mL (1)
10 x 100 mL (1)
10 x 50 mL (1)
100 mL (7)

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Form

Liquid (82)
Solution (19)

Search Within Results

1,261 – 1,275 of 7,049 results

1,261

Congo Red 98.0+%, TCI America™

CAS: 573-58-0 Molecular Formula: C32H22N6Na2O6S2 Molecular Weight (g/mol): 696.664 MDL Number: MFCD00004028 InChI Key: IQFVPQOLBLOTPF-UHFFFAOYSA-L Synonym: Direct Red 28 PubChem CID: 11313 ChEBI: CHEBI:34653 IUPAC Name: disodium;4-amino-3-[[4-[4-[(1-amino-4-sulfonatonaphthalen-2-yl)diazenyl]phenyl]phenyl]diazenyl]naphthalene-1-sulfonate SMILES: C1=CC=C2C(=C1)C(=CC(=C2N)N=NC3=CC=C(C=C3)C4=CC=C(C=C4)N=NC5=C(C6=CC=CC=C6C(=C5)S(=O)(=O)[O-])N)S(=O)(=O)[O-].[Na+].[Na+]

Pricing & Availability
Specifications

PubChem CID	11313
CAS	573-58-0
Molecular Weight (g/mol)	696.664
ChEBI	CHEBI:34653
MDL Number	MFCD00004028
SMILES	C1=CC=C2C(=C1)C(=CC(=C2N)N=NC3=CC=C(C=C3)C4=CC=C(C=C4)N=NC5=C(C6=CC=CC=C6C(=C5)S(=O)(=O)[O-])N)S(=O)(=O)[O-].[Na+].[Na+]
Synonym	Direct Red 28
IUPAC Name	disodium;4-amino-3-[[4-[4-[(1-amino-4-sulfonatonaphthalen-2-yl)diazenyl]phenyl]phenyl]diazenyl]naphthalene-1-sulfonate
InChI Key	IQFVPQOLBLOTPF-UHFFFAOYSA-L
Molecular Formula	C32H22N6Na2O6S2

1,262

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

For Acid-Base Titrations

Pricing & Availability
Specifications

Concentration or Composition (by Analyte or Components)	1% (w/v)
Percent Purity	1% W/V
CAS	7732-18-5
pH Color Changes	pink (pH 4.2) - yellow (pH 6.2)
Color	Orange to Red
pH	5
Packaging	Natural Poly Bottle
Chemical Name or Material	Methyl Red Indicator
Grade	Indicator
Solvent or Matrix	Aqueous solution

1,263

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

MDL Number: MFCD00079686 Synonym: Methylene Blue - Methyl Red Solution

Pricing & Availability
Specifications

MDL Number	MFCD00079686
Synonym	Methylene Blue - Methyl Red Solution

1,264

StatLab MasterTech Light Green Counterstain

An extremely popular counterstain in histology

Pricing & Availability

1,265

Acid Red 94, TCI America™

CAS: 632-69-9 Molecular Formula: C20H4Cl4I4Na2O5 Molecular Weight (g/mol): 1019.644 MDL Number: MFCD00151169 InChI Key: DPBQSRZQYAYDGY-UHFFFAOYSA-N Synonym: Rose Bengal PubChem CID: 87244310 IUPAC Name: sodium;4,5,6,7-tetrachloro-3',6'-dihydroxy-2',4',5',7'-tetraiodospiro[2-benzofuran-3,9'-xanthene]-1-one SMILES: C1=C2C(=C(C(=C1I)O)I)OC3=C(C(=C(C=C3C24C5=C(C(=C(C(=C5Cl)Cl)Cl)Cl)C(=O)O4)I)O)I.[Na].[Na]

Pricing & Availability
Specifications

PubChem CID	87244310
CAS	632-69-9
Molecular Weight (g/mol)	1019.644
MDL Number	MFCD00151169
SMILES	C1=C2C(=C(C(=C1I)O)I)OC3=C(C(=C(C=C3C24C5=C(C(=C(C(=C5Cl)Cl)Cl)Cl)C(=O)O4)I)O)I.[Na].[Na]
Synonym	Rose Bengal
IUPAC Name	sodium;4,5,6,7-tetrachloro-3',6'-dihydroxy-2',4',5',7'-tetraiodospiro[2-benzofuran-3,9'-xanthene]-1-one
InChI Key	DPBQSRZQYAYDGY-UHFFFAOYSA-N
Molecular Formula	C20H4Cl4I4Na2O5

1,266

Phenolphthalein Indicator, 0.5% (w/v) in 50% (v/v) Methanol, Neutralized, Ricca Chemical

Pricing & Availability

1,267

Crystal Violet Hydrate, TCI America™

CAS: 548-62-9 Molecular Formula: C25H30ClN3 Molecular Weight (g/mol): 407.986 MDL Number: MFCD00011750 InChI Key: ZXJXZNDDNMQXFV-UHFFFAOYSA-M Synonym: Basic Violet 3, Hexamethylpararosaniline Chloride PubChem CID: 11057 ChEBI: CHEBI:41688 IUPAC Name: [4-[bis[4-(dimethylamino)phenyl]methylidene]cyclohexa-2,5-dien-1-ylidene]-dimethylazanium;chloride SMILES: CN(C)C1=CC=C(C=C1)C(=C2C=CC(=[N+](C)C)C=C2)C3=CC=C(C=C3)N(C)C.[Cl-]

Pricing & Availability
Specifications

PubChem CID	11057
CAS	548-62-9
Molecular Weight (g/mol)	407.986
ChEBI	CHEBI:41688
MDL Number	MFCD00011750
SMILES	CN(C)C1=CC=C(C=C1)C(=C2C=CC(=[N+](C)C)C=C2)C3=CC=C(C=C3)N(C)C.[Cl-]
Synonym	Basic Violet 3, Hexamethylpararosaniline Chloride
IUPAC Name	[4-[bis[4-(dimethylamino)phenyl]methylidene]cyclohexa-2,5-dien-1-ylidene]-dimethylazanium;chloride
InChI Key	ZXJXZNDDNMQXFV-UHFFFAOYSA-M
Molecular Formula	C25H30ClN3

1,268

Starch Indicator, with 0.5% Potassium Iodide, Ricca Chemical

Pricing & Availability
Specifications

CAS	10102-17-7
Physical Form	Liquid
CAS Min %	0.0023
Chemical Name or Material	Starch Indicator
CAS Max %	0.0023

1,269

Phenolphthalein TS/RS, 1% (w/v) Alcoholic, Ricca Chemical

Pricing & Availability
Specifications

CAS	77-09-8
Color	Colorless to Yellow
Packaging	Natural Poly Bottle
Grade	Indicator

1,270

Lithol Rubin BCA 85.0+%, TCI America™

CAS: 5281-04-9 Molecular Formula: C18H12CaN2O6S Molecular Weight (g/mol): 424.44 MDL Number: MFCD00059529 InChI Key: WANIKCLUTOABTP-LRZQPWDCSA-L Synonym: Brilliant Carmine 6B, Pigment Red 57 PubChem CID: 121233252 IUPAC Name: calcium;(4Z)-4-[(4-methyl-2-sulfonatophenyl)hydrazinylidene]-3-oxonaphthalene-2-carboxylate SMILES: CC1=CC(=C(C=C1)NN=C2C3=CC=CC=C3C=C(C2=O)C(=O)[O-])S(=O)(=O)[O-].[Ca].[Ca]

Pricing & Availability
Specifications

PubChem CID	121233252
CAS	5281-04-9
Molecular Weight (g/mol)	424.44
MDL Number	MFCD00059529
SMILES	CC1=CC(=C(C=C1)NN=C2C3=CC=CC=C3C=C(C2=O)C(=O)[O-])S(=O)(=O)[O-].[Ca].[Ca]
Synonym	Brilliant Carmine 6B, Pigment Red 57
IUPAC Name	calcium;(4Z)-4-[(4-methyl-2-sulfonatophenyl)hydrazinylidene]-3-oxonaphthalene-2-carboxylate
InChI Key	WANIKCLUTOABTP-LRZQPWDCSA-L
Molecular Formula	C18H12CaN2O6S