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 (9,034)

Tissue Stain Blocking Reagents (82)

361 – 375 of 6,817 results

361

StatLab™ MasterTech PAS Stain Kit

PAS Stain Kit stains for glycogen, mucin, fungi, and basement membranes in under 25 minutes.

Pricing & Availability
Specifications

Type	Stain Kit

362

LabChem, Inc. 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

363

LabChem, Inc. Phenolphthalein, 1% in 95% Ethanol, pH 8.3 to 10.0 Colorless to Pink, Certified, LabChem™

Pricing & Availability
Specifications

Linear Formula	C₂₀H₁₄O₄
Color	Colorless to Pink
Physical Form	Liquid
Chemical Name or Material	Phenolphthalein
Grade	Certified
Identification	Passes Test
Density	0.95g/mL
CAS	77-09-8
Packaging	Poly Bottle
Solubility Information	Soluble in water
Health Hazard 1	Danger
Recommended Storage	Room Temperature
Formula Weight	318.32
Specific Gravity	0.95g/mL
CAS Max %	1

364

Promotions Available

Bismarck Brown Y

CAS: 10114-58-6 Molecular Formula: C18H20Cl2N8 Molecular Weight (g/mol): 419.314 MDL Number: MFCD00012977 InChI Key: MCZVRBLCRZWFJH-UHFFFAOYSA-N Synonym: C.I. 21000 PubChem CID: 82360 ChEBI: CHEBI:53615 IUPAC Name: 4-[[3-[(2,4-diaminophenyl)diazenyl]phenyl]diazenyl]benzene-1,3-diamine;dihydrochloride SMILES: C1=CC(=CC(=C1)N=NC2=C(C=C(C=C2)N)N)N=NC3=C(C=C(C=C3)N)N.Cl.Cl

Pricing & Availability
Specifications

PubChem CID	82360
CAS	10114-58-6
Molecular Weight (g/mol)	419.314
ChEBI	CHEBI:53615
MDL Number	MFCD00012977
SMILES	C1=CC(=CC(=C1)N=NC2=C(C=C(C=C2)N)N)N=NC3=C(C=C(C=C3)N)N.Cl.Cl
Synonym	C.I. 21000
IUPAC Name	4-[[3-[(2,4-diaminophenyl)diazenyl]phenyl]diazenyl]benzene-1,3-diamine;dihydrochloride
InChI Key	MCZVRBLCRZWFJH-UHFFFAOYSA-N
Molecular Formula	C18H20Cl2N8

365

Thermo Scientific Chemicals Reactive Blue 4, dye content min. 35%

CAS: 13324-20-4 Molecular Formula: C23H14Cl2N6O8S2 Molecular Weight (g/mol): 637.42 MDL Number: MFCD00001218 InChI Key: RTLULCVBFCRQKI-UHFFFAOYSA-N Synonym: C.I. 61205; Procion™ Blue MX-R PubChem CID: 25863 IUPAC Name: 1-amino-4-[3-[(4,6-dichloro-1,3,5-triazin-2-yl)amino]-4-sulfoanilino]-9,10-dioxoanthracene-2-sulfonic acid SMILES: NC1=C(C=C(NC2=CC=C(C(NC3=NC(Cl)=NC(Cl)=N3)=C2)S(O)(=O)=O)C2=C1C(=O)C1=CC=CC=C1C2=O)S(O)(=O)=O

Pricing & Availability
Specifications

PubChem CID	25863
CAS	13324-20-4
Molecular Weight (g/mol)	637.42
MDL Number	MFCD00001218
SMILES	NC1=C(C=C(NC2=CC=C(C(NC3=NC(Cl)=NC(Cl)=N3)=C2)S(O)(=O)=O)C2=C1C(=O)C1=CC=CC=C1C2=O)S(O)(=O)=O
Synonym	C.I. 61205; Procion™ Blue MX-R
IUPAC Name	1-amino-4-[3-[(4,6-dichloro-1,3,5-triazin-2-yl)amino]-4-sulfoanilino]-9,10-dioxoanthracene-2-sulfonic acid
InChI Key	RTLULCVBFCRQKI-UHFFFAOYSA-N
Molecular Formula	C23H14Cl2N6O8S2

366

Thymol Blue sodium salt, 0.04% w/v aq. soln.

CAS: 62625-21-2 Molecular Formula: C27H29NaO5S Molecular Weight (g/mol): 488.57 MDL Number: MFCD00151093 InChI Key: OCMIKNBSIRSUPI-FRWNMSGJSA-M PubChem CID: 23692293 IUPAC Name: sodium;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-ylphenolate 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

Pricing & Availability
Specifications

PubChem CID	23692293
CAS	62625-21-2
Molecular Weight (g/mol)	488.57
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;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-ylphenolate
InChI Key	OCMIKNBSIRSUPI-FRWNMSGJSA-M
Molecular Formula	C27H29NaO5S

367

Nile Red Fluorescent stain for intracellular lipid droplets. MP Biomedicals

CAS: 7385-67-3 Molecular Formula: C20H18N2O2 Molecular Weight (g/mol): 318.38 MDL Number: MFCD00011639 InChI Key: VOFUROIFQGPCGE-UHFFFAOYSA-N Synonym: Nile Blue A Oxazone,9-diethylamino-5H-benzo-alpha-phenoxazine-5-one PubChem CID: 65182 ChEBI: CHEBI:52169 IUPAC Name: 9-(diethylamino)benzo[a]phenoxazin-5-one SMILES: CCN(CC)C1=CC=C2N=C3C(OC2=C1)=CC(=O)C1=CC=CC=C31

Pricing & Availability
Specifications

PubChem CID	65182
CAS	7385-67-3
Molecular Weight (g/mol)	318.38
ChEBI	CHEBI:52169
MDL Number	MFCD00011639
SMILES	CCN(CC)C1=CC=C2N=C3C(OC2=C1)=CC(=O)C1=CC=CC=C31
Synonym	Nile Blue A Oxazone,9-diethylamino-5H-benzo-alpha-phenoxazine-5-one
IUPAC Name	9-(diethylamino)benzo[a]phenoxazin-5-one
InChI Key	VOFUROIFQGPCGE-UHFFFAOYSA-N
Molecular Formula	C20H18N2O2

368

Alcian Blue 8GX, MP Biomedicals™

CAS: 75881-23-1 Molecular Formula: C56H68Cl4CuN16S4 Molecular Weight (g/mol): 1298.858 InChI Key: CKLBXIYTBHXJEH-UHFFFAOYSA-J Synonym: Alcian Blue, Ingrain Blue 1 PubChem CID: 16211091 SMILES: CN(C)C(=[N+](C)C)SCC1=CC2=C(C=C1)C3=NC4=NC(=NC5=C6C=C(C=CC6=C([N-]5)N=C7C8=C(C=CC(=C8)CSC(=[N+](C)C)N(C)C)C(=N7)N=C2[N-]3)CSC(=[N+](C)C)N(C)C)C9=C4C=C(C=C9)CSC(=[N+](C)C)N(C)C.[Cl-].[Cl-].[Cl-].[Cl-].[Cu+2]

Pricing & Availability
Specifications

PubChem CID	16211091
CAS	75881-23-1
Molecular Weight (g/mol)	1298.858
SMILES	CN(C)C(=[N+](C)C)SCC1=CC2=C(C=C1)C3=NC4=NC(=NC5=C6C=C(C=CC6=C([N-]5)N=C7C8=C(C=CC(=C8)CSC(=[N+](C)C)N(C)C)C(=N7)N=C2[N-]3)CSC(=[N+](C)C)N(C)C)C9=C4C=C(C=C9)CSC(=[N+](C)C)N(C)C.[Cl-].[Cl-].[Cl-].[Cl-].[Cu+2]
Synonym	Alcian Blue, Ingrain Blue 1
InChI Key	CKLBXIYTBHXJEH-UHFFFAOYSA-J
Molecular Formula	C56H68Cl4CuN16S4

369

Thermo Scientific Chemicals Alizarin, 97%, pure

CAS: 72-48-0 Molecular Formula: C14H8O4 Molecular Weight (g/mol): 240.214 MDL Number: MFCD00001201 InChI Key: RGCKGOZRHPZPFP-UHFFFAOYSA-N Synonym: 1, 2-Dihydroxyanthraquinone,Mordant Red 11 PubChem CID: 6293 ChEBI: CHEBI:16866 IUPAC Name: 1,2-dihydroxyanthracene-9,10-dione SMILES: C1=CC=C2C(=C1)C(=O)C3=C(C2=O)C(=C(C=C3)O)O

Pricing & Availability
Specifications

PubChem CID	6293
CAS	72-48-0
Molecular Weight (g/mol)	240.214
ChEBI	CHEBI:16866
MDL Number	MFCD00001201
SMILES	C1=CC=C2C(=C1)C(=O)C3=C(C2=O)C(=C(C=C3)O)O
Synonym	1, 2-Dihydroxyanthraquinone,Mordant Red 11
IUPAC Name	1,2-dihydroxyanthracene-9,10-dione
InChI Key	RGCKGOZRHPZPFP-UHFFFAOYSA-N
Molecular Formula	C14H8O4

370

Thermo Scientific Chemicals Fluoresceinamine isomer I, pure

CAS: 3326-34-9 Molecular Formula: C20H13NO5 Molecular Weight (g/mol): 347.33 MDL Number: MFCD00005052 InChI Key: GZAJOEGTZDUSKS-UHFFFAOYSA-N Synonym: 5-Aminofluorescein PubChem CID: 76845 IUPAC Name: 6-amino-3',6'-dihydroxyspiro[2-benzofuran-3,9'-xanthene]-1-one SMILES: NC1=CC=C2C(=C1)C(=O)OC21C2=CC=C(O)C=C2OC2=CC(O)=CC=C12

Pricing & Availability
Specifications

PubChem CID	76845
CAS	3326-34-9
Molecular Weight (g/mol)	347.33
MDL Number	MFCD00005052
SMILES	NC1=CC=C2C(=C1)C(=O)OC21C2=CC=C(O)C=C2OC2=CC(O)=CC=C12
Synonym	5-Aminofluorescein
IUPAC Name	6-amino-3',6'-dihydroxyspiro[2-benzofuran-3,9'-xanthene]-1-one
InChI Key	GZAJOEGTZDUSKS-UHFFFAOYSA-N
Molecular Formula	C20H13NO5

371

Starch Indicator, 1% (w/v), with Chloroform preservative, Ricca Chemical

Pricing & Availability
Specifications

Name Note	With Chloroform Preservative
Percent Purity	1% 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	1% (w/v)
Solvent or Matrix	Aqueous Solution
CAS Max %	0.4

372

Thymolphthalein Indicator, 0.05% (w/v) in 90% (v/v) Alcohol, Ricca Chemical

Pricing & Availability
Specifications

Percent Purity	0.05% W/V
CAS	125-20-2
Color	Colorless
Packaging	Natural Poly Bottle
CAS Min %	4.0
Chemical Name or Material	Thymolphthalein Indicator
Grade	Indicator
Concentration	0.05% (w/v)
Solvent or Matrix	90% (v/v) Alcohol
CAS Max %	6.0

373

Thermo Scientific Chemicals Congo Red, Indicator grade

CAS: 573-58-0 Molecular Formula: C32H22N6Na2O6S2 Molecular Weight (g/mol): 696.664 MDL Number: MFCD00004028 InChI Key: IQFVPQOLBLOTPF-UHFFFAOYSA-L Synonym: C.I. 22120,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	C.I. 22120,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

374

Eosin Y Free Acid, MP Biomedicals

CAS: 15086-94-9 Molecular Formula: C₂₀H₈Br₄O₅ Synonym: 2,4,5,7-Tetrabromofluorescein,Eosin yellowish

Pricing & Availability
Specifications

CAS	15086-94-9
Synonym	2,4,5,7-Tetrabromofluorescein,Eosin yellowish
Molecular Formula	C₂₀H₈Br₄O₅

375

Thermo Scientific Chemicals Victoria Blue B, pure

CAS: 2580-56-5 Molecular Formula: C33H32ClN3 Molecular Weight (g/mol): 506.09 MDL Number: MFCD00011878 InChI Key: LLWJPGAKXJBKKA-UHFFFAOYSA-N Synonym: Basic Blue 26,C.I. 44045 PubChem CID: 17407 ChEBI: CHEBI:87651 IUPAC Name: [4-[bis[4-(dimethylamino)phenyl]methylidene]naphthalen-1-ylidene]-phenylazanium;chloride SMILES: CN(C)C1=CC=C(C=C1)C(=C2C=CC(=[NH+]C3=CC=CC=C3)C4=CC=CC=C24)C5=CC=C(C=C5)N(C)C.[Cl-]

Pricing & Availability
Specifications

PubChem CID	17407
CAS	2580-56-5
Molecular Weight (g/mol)	506.09
ChEBI	CHEBI:87651
MDL Number	MFCD00011878
SMILES	CN(C)C1=CC=C(C=C1)C(=C2C=CC(=[NH+]C3=CC=CC=C3)C4=CC=CC=C24)C5=CC=C(C=C5)N(C)C.[Cl-]
Synonym	Basic Blue 26,C.I. 44045
IUPAC Name	[4-[bis[4-(dimethylamino)phenyl]methylidene]naphthalen-1-ylidene]-phenylazanium;chloride
InChI Key	LLWJPGAKXJBKKA-UHFFFAOYSA-N
Molecular Formula	C33H32ClN3

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Staining Reagents

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StatLab™ MasterTech PAS Stain Kit Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

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

Thymolphthalein Indicator, 0.05% (w/v) in 90% (v/v) Alcohol, Ricca Chemical Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

StatLab™ MasterTech PAS Stain Kit

Starch Indicator, 1% (w/v), with Chloroform preservative, Ricca Chemical

Thymolphthalein Indicator, 0.05% (w/v) in 90% (v/v) Alcohol, Ricca Chemical