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.

256 – 270 of 6,701 results

256

Fast blue B salt, MP Biomedicals™

Pricing & Availability

257

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

Iodometric Titrations

Pricing & Availability
Specifications

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

258

Thermo Scientific Chemicals Sudan III

CAS: 85-86-9 Molecular Formula: C22H16N4O Molecular Weight (g/mol): 352.397 MDL Number: MFCD00003905 InChI Key: HTPQPMPFXUWUOT-UHFFFAOYSA-N Synonym: C.I. 26100; Solvent Red 23 PubChem CID: 6789251 IUPAC Name: 1-[(4-phenyldiazenylphenyl)hydrazinylidene]naphthalen-2-one SMILES: C1=CC=C(C=C1)N=NC2=CC=C(C=C2)NN=C3C(=O)C=CC4=CC=CC=C43

Pricing & Availability
Specifications

PubChem CID	6789251
CAS	85-86-9
Molecular Weight (g/mol)	352.397
MDL Number	MFCD00003905
SMILES	C1=CC=C(C=C1)N=NC2=CC=C(C=C2)NN=C3C(=O)C=CC4=CC=CC=C43
Synonym	C.I. 26100; Solvent Red 23
IUPAC Name	1-[(4-phenyldiazenylphenyl)hydrazinylidene]naphthalen-2-one
InChI Key	HTPQPMPFXUWUOT-UHFFFAOYSA-N
Molecular Formula	C22H16N4O

259

Thermo Scientific Chemicals Phloxine B, 85%, pure, high purity, Biological stain

CAS: 18472-87-2 Molecular Formula: C₂₀H₂Br₄Cl₄Na₂O₅ MDL Number: MFCD00005061 Synonym: Acid Red 92,C.I. 45410

Pricing & Availability
Specifications

CAS	18472-87-2
MDL Number	MFCD00005061
Synonym	Acid Red 92,C.I. 45410
Molecular Formula	C₂₀H₂Br₄Cl₄Na₂O₅

260

BD BBL™/Difco™ TB Stain Kit ZN

For staining mycobacteria by the Ziehl-Neelsen (hot) acid-fast procedure

Pricing & Availability

261

Thermo Scientific Chemicals Bromothymol Blue, ACS reagent

CAS: 76-59-5 Molecular Formula: C27H28Br2O5S Molecular Weight (g/mol): 624.384 MDL Number: MFCD00005872 InChI Key: NUHCTOLBWMJMLX-UHFFFAOYSA-N Synonym: Bromthymol Blue,3';, 3';';-Dibromothymolsulfonephthalein,BTB PubChem CID: 6450 ChEBI: CHEBI:86155 IUPAC Name: 2-bromo-4-[3-(3-bromo-4-hydroxy-2-methyl-5-propan-2-ylphenyl)-1,1-dioxo-2,1$l^{6}-benzoxathiol-3-yl]-3-methyl-6-propan-2-ylphenol SMILES: CC1=C(C(=C(C=C1C2(C3=CC=CC=C3S(=O)(=O)O2)C4=CC(=C(C(=C4C)Br)O)C(C)C)C(C)C)O)Br

Pricing & Availability
Specifications

PubChem CID	6450
CAS	76-59-5
Molecular Weight (g/mol)	624.384
ChEBI	CHEBI:86155
MDL Number	MFCD00005872
SMILES	CC1=C(C(=C(C=C1C2(C3=CC=CC=C3S(=O)(=O)O2)C4=CC(=C(C(=C4C)Br)O)C(C)C)C(C)C)O)Br
Synonym	Bromthymol Blue,3';, 3';';-Dibromothymolsulfonephthalein,BTB
IUPAC Name	2-bromo-4-[3-(3-bromo-4-hydroxy-2-methyl-5-propan-2-ylphenyl)-1,1-dioxo-2,1$l^{6}-benzoxathiol-3-yl]-3-methyl-6-propan-2-ylphenol
InChI Key	NUHCTOLBWMJMLX-UHFFFAOYSA-N
Molecular Formula	C27H28Br2O5S

262

Thermo Scientific Chemicals Phenolphthalein, ACS reagent

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

Pricing & Availability
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

263

o-Phthalaldehyde 99.0+%, TCI America™

CAS: 643-79-8 Molecular Formula: C8H6O2 Molecular Weight (g/mol): 134.13 MDL Number: MFCD00003335 InChI Key: ZWLUXSQADUDCSB-UHFFFAOYSA-N Synonym: Phthaldialdehyde, Benzene-1,2-dicarboxaldehyde PubChem CID: 4807 ChEBI: CHEBI:70851 IUPAC Name: benzene-1,2-dicarbaldehyde SMILES: O=CC1=CC=CC=C1C=O

Pricing & Availability
Specifications

PubChem CID	4807
CAS	643-79-8
Molecular Weight (g/mol)	134.13
ChEBI	CHEBI:70851
MDL Number	MFCD00003335
SMILES	O=CC1=CC=CC=C1C=O
Synonym	Phthaldialdehyde, Benzene-1,2-dicarboxaldehyde
IUPAC Name	benzene-1,2-dicarbaldehyde
InChI Key	ZWLUXSQADUDCSB-UHFFFAOYSA-N
Molecular Formula	C8H6O2

264

Dansyl chloride, 98%

CAS: 605-65-2 Molecular Formula: C12H12ClNO2S Molecular Weight (g/mol): 269.74 MDL Number: MFCD00003985 InChI Key: XPDXVDYUQZHFPV-UHFFFAOYSA-N Synonym: 5-Dimethylamino-1-naphthalenesulfonyl chloride PubChem CID: 11801 ChEBI: CHEBI:51907 IUPAC Name: 5-(dimethylamino)naphthalene-1-sulfonyl chloride SMILES: CN(C)C1=CC=CC2=C(C=CC=C12)S(Cl)(=O)=O

Pricing & Availability
Specifications

PubChem CID	11801
CAS	605-65-2
Molecular Weight (g/mol)	269.74
ChEBI	CHEBI:51907
MDL Number	MFCD00003985
SMILES	CN(C)C1=CC=CC2=C(C=CC=C12)S(Cl)(=O)=O
Synonym	5-Dimethylamino-1-naphthalenesulfonyl chloride
IUPAC Name	5-(dimethylamino)naphthalene-1-sulfonyl chloride
InChI Key	XPDXVDYUQZHFPV-UHFFFAOYSA-N
Molecular Formula	C12H12ClNO2S

265

Thermo Scientific Chemicals Neutral Red

CAS: 553-24-2 Molecular Formula: C15H17ClN4 Molecular Weight (g/mol): 288.779 MDL Number: MFCD00012651 InChI Key: PGSADBUBUOPOJS-UHFFFAOYSA-N Synonym: Basic Red 5; C.I. 50040 PubChem CID: 11105 ChEBI: CHEBI:86370 IUPAC Name: 8-N,8-N,3-trimethylphenazine-2,8-diamine;hydrochloride SMILES: CC1=CC2=NC3=C(C=C(C=C3)N(C)C)N=C2C=C1N.Cl

Pricing & Availability
Specifications

PubChem CID	11105
CAS	553-24-2
Molecular Weight (g/mol)	288.779
ChEBI	CHEBI:86370
MDL Number	MFCD00012651
SMILES	CC1=CC2=NC3=C(C=C(C=C3)N(C)C)N=C2C=C1N.Cl
Synonym	Basic Red 5; C.I. 50040
IUPAC Name	8-N,8-N,3-trimethylphenazine-2,8-diamine;hydrochloride
InChI Key	PGSADBUBUOPOJS-UHFFFAOYSA-N
Molecular Formula	C15H17ClN4

266

Thermo Scientific Chemicals Methylene Blue trihydrate, 95%, pure

CAS: 7220-79-3 Molecular Formula: C16H24ClN3O3S Molecular Weight (g/mol): 373.90 MDL Number: MFCD00150008 InChI Key: XQAXGZLFSSPBMK-UHFFFAOYSA-M Synonym: Basic Blue 9 trihydrate,C.I. 52015 trihydrate PubChem CID: 104827 SMILES: O.O.O.[Cl-].CN(C)C1=CC2=[S+]C3=CC(=CC=C3N=C2C=C1)N(C)C

Pricing & Availability
Specifications

PubChem CID	104827
CAS	7220-79-3
Molecular Weight (g/mol)	373.90
MDL Number	MFCD00150008
SMILES	O.O.O.[Cl-].CN(C)C1=CC2=[S+]C3=CC(=CC=C3N=C2C=C1)N(C)C
Synonym	Basic Blue 9 trihydrate,C.I. 52015 trihydrate
InChI Key	XQAXGZLFSSPBMK-UHFFFAOYSA-M
Molecular Formula	C16H24ClN3O3S

267

Thermo Scientific Chemicals Bromocresol Green, pure, indicator grade

CAS: 76-60-8 Molecular Formula: C21H14Br4O5S Molecular Weight (g/mol): 698.014 MDL Number: MFCD00005874 InChI Key: FRPHFZCDPYBUAU-UHFFFAOYSA-N Synonym: 3',3'',5',5''-Tetrabromo-m-cresolsulfonephthalein,BCG,3', 3'', 5' PubChem CID: 6451 IUPAC Name: 2,6-dibromo-4-[3-(3,5-dibromo-4-hydroxy-2-methylphenyl)-1,1-dioxo-2,1$l^{6}-benzoxathiol-3-yl]-3-methylphenol SMILES: CC1=C(C(=C(C=C1C2(C3=CC=CC=C3S(=O)(=O)O2)C4=CC(=C(C(=C4C)Br)O)Br)Br)O)Br

Pricing & Availability
Specifications

PubChem CID	6451
CAS	76-60-8
Molecular Weight (g/mol)	698.014
MDL Number	MFCD00005874
SMILES	CC1=C(C(=C(C=C1C2(C3=CC=CC=C3S(=O)(=O)O2)C4=CC(=C(C(=C4C)Br)O)Br)Br)O)Br
Synonym	3',3'',5',5''-Tetrabromo-m-cresolsulfonephthalein,BCG,3', 3'', 5'
IUPAC Name	2,6-dibromo-4-[3-(3,5-dibromo-4-hydroxy-2-methylphenyl)-1,1-dioxo-2,1$l^{6}-benzoxathiol-3-yl]-3-methylphenol
InChI Key	FRPHFZCDPYBUAU-UHFFFAOYSA-N
Molecular Formula	C21H14Br4O5S

268

Promotions Available

BD Propidium Iodide Staining Solution

Designed for use in two-color Annexin V flow cytometric assays.

Pricing & Availability

269

Thermo Scientific Chemicals Eosin Y, pure, high purity, biological stain

CAS: 17372-87-1 Molecular Formula: C20H12Br4Na2O8 Molecular Weight (g/mol): 745.904 MDL Number: MFCD00005040 InChI Key: MASXMTNVNASWNH-UHFFFAOYSA-L Synonym: 2',4',5',7'-Tetrabromofluorescein, disodium salt,Eosin Yellowish,2', 4', 5' PubChem CID: 91886399 IUPAC Name: disodium;2-(2,4,5,7-tetrabromo-3-oxido-6-oxoxanthen-9-yl)benzoate;trihydrate SMILES: C1=CC=C(C(=C1)C2=C3C=C(C(=O)C(=C3OC4=C(C(=C(C=C24)Br)[O-])Br)Br)Br)C(=O)[O-].O.O.O.[Na+].[Na+]

Pricing & Availability
Specifications

PubChem CID	91886399
CAS	17372-87-1
Molecular Weight (g/mol)	745.904
MDL Number	MFCD00005040
SMILES	C1=CC=C(C(=C1)C2=C3C=C(C(=O)C(=C3OC4=C(C(=C(C=C24)Br)[O-])Br)Br)Br)C(=O)[O-].O.O.O.[Na+].[Na+]
Synonym	2',4',5',7'-Tetrabromofluorescein, disodium salt,Eosin Yellowish,2', 4', 5'
IUPAC Name	disodium;2-(2,4,5,7-tetrabromo-3-oxido-6-oxoxanthen-9-yl)benzoate;trihydrate
InChI Key	MASXMTNVNASWNH-UHFFFAOYSA-L
Molecular Formula	C20H12Br4Na2O8

270

Thermo Scientific Chemicals Methylene Blue hydrate, pure

CAS: 122965-43-9 Molecular Formula: C16H18ClN3S Molecular Weight (g/mol): 319.85 MDL Number: MFCD00150006 InChI Key: CXKWCBBOMKCUKX-UHFFFAOYSA-M Synonym: Basic Blue 9 hydrate,C.I. 52015 hydrate PubChem CID: 16211647 SMILES: [Cl-].CN(C)C1=CC=C2N=C3C=CC(C=C3SC2=C1)=[N+](C)C

Pricing & Availability
Specifications

PubChem CID	16211647
CAS	122965-43-9
Molecular Weight (g/mol)	319.85
MDL Number	MFCD00150006
SMILES	[Cl-].CN(C)C1=CC=C2N=C3C=CC(C=C3SC2=C1)=[N+](C)C
Synonym	Basic Blue 9 hydrate,C.I. 52015 hydrate
InChI Key	CXKWCBBOMKCUKX-UHFFFAOYSA-M
Molecular Formula	C16H18ClN3S

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Stains and Dyes

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Starch Indicator, 2% (w/v), Mercury Free, for Iodometric Titrations, Ricca Chemical Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

o-Phthalaldehyde 99.0+%, TCI America™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

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

o-Phthalaldehyde 99.0+%, TCI America™