accessibility menu, dialog, popup

UserName
New Feature

You can now browse the site in English or Français.

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 (1,761)
Tissue Stain Blocking Reagents (4)

Filtered Search Results

Products from some of our suppliers do not display in filtered search results. Please clear all filters to see these products.

Narrow Results

Narrow Results

category

special offers

  • (13)

brands

  • (10)
  • (45)
  • (1)
  • (2)
  • (45)
  • (137)
  • (28)
  • (122)
  • (135)
  • (1)
  • (3)
  • (12)
  • (8)
  • (182)
  • (1)
  • (1)
  • (6)
  • (1)
  • (5)
  • (9)
  • (6)
  • (26)
  • (11)
  • (5)
  • (16)
  • (556)
  • (381)
  • (7)
  • (3)

special programs

  • (38)
  • (101)
  • (16)
  • (1)

Quantity

  • (1)
  • (6)
  • (35)
  • (1)
  • (69)
  • (18)
  • (1)
Show all

Molecular Weight (g/mol)

  • (1)
  • (8)
  • (3)
  • (2)
  • (2)
  • (6)
  • (2)
Show all

Color

  • (9)
  • (5)
  • (2)
  • (3)
  • (9)
  • (3)
  • (4)
Show all

Grade

  • (45)
  • (66)
  • (1)
  • (3)
  • (2)
  • (8)
  • (4)
Show all

Type

  • (1)
  • (1)
  • (1)
  • (4)
  • (1)
  • (2)
  • (1)
Show all

Percent Purity

  • (3)
  • (2)
  • (3)
  • (5)
  • (3)
  • (2)
  • (3)
Show all

pH

  • (2)
  • (9)
  • (2)
  • (2)
  • (4)
  • (2)
  • (1)
Show all

Product Type

  • (2)
  • (2)
  • (2)
  • (1)
  • (2)
  • (2)
  • (13)
Show all

Volume (Metric)

  • (2)
  • (1)
  • (4)
  • (1)

Form

  • (6)
Keyword Search:
1 – 15 of 952 results
1
Promotions Available

Thermo Scientific Chemicals Methylene Blue, pure, certified, residual water

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 PubChem CID: 6099 ChEBI: CHEBI:6872 IUPAC Name: [7-(dimethylamino)phenothiazin-3-ylidene]-dimethylazanium;chloride SMILES: O.O.O.[Cl-].CN(C)C1=CC2=[S+]C3=CC(=CC=C3N=C2C=C1)N(C)C

EDGE
PubChem CID 6099
CAS 7220-79-3
Molecular Weight (g/mol) 373.90
ChEBI CHEBI:6872
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
IUPAC Name [7-(dimethylamino)phenothiazin-3-ylidene]-dimethylazanium;chloride
InChI Key XQAXGZLFSSPBMK-UHFFFAOYSA-M
Molecular Formula C16H24ClN3O3S
2
Promotions Available

Thermo Scientific™ Gram Stain Kit

Differentiate gram-positive organisms from gram-negative organisms using Gram Stain Kit.

3

Thermo Scientific Chemicals Methylene Blue hydrate, 96+%, high purity biological stain

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 IUPAC Name: [7-(dimethylamino)phenothiazin-3-ylidene]-dimethylazanium;chloride;hydrate SMILES: [Cl-].CN(C)C1=CC=C2N=C3C=CC(C=C3SC2=C1)=[N+](C)C

EDGE
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
IUPAC Name [7-(dimethylamino)phenothiazin-3-ylidene]-dimethylazanium;chloride;hydrate
InChI Key CXKWCBBOMKCUKX-UHFFFAOYSA-M
Molecular Formula C16H18ClN3S
4

Crystal Violet, Fisher Chemical™
BIOPHARMA

5

Thermo Scientific Chemicals Methylene Blue, 1% w/v aq. soln.

CAS: 122965-43-9 | C16H18ClN3S

Concentration or Composition (by Analyte or Components) 3, 7-Bis(dimethylamino)phenothiazin-5-ium chloride hydrate: 1.0%; Water: 99%
CAS 7732-18-5
MDL Number MFCD00012111
Physical Form Liquid
Solubility Information Miscible with ethanol,chloroform,glacial acetic acid and glycerol. Slightly miscible with pyridine. Immiscible with ethyl ether,xylene,oleic acid,ethanol and acetone.
Chemical Name or Material Methylene Blue
TSCA Yes
Recommended Storage Ambient temperatures
Molecular Formula C16H18ClN3S
Formula Weight 319.86
Vapor Pressure 23 hPa (17mm Hg) at 20°C
Assay Percent Range 1% w/v aqueous solution
6

Ninhydrin Monohydrate, Extra Pure, Fisher Chemical™

CAS: 485-47-2 Molecular Formula: C9H6O4 Molecular Weight (g/mol): 178.143 MDL Number: 3791 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) 178.143
ChEBI CHEBI:86374
MDL Number 3791
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
7

Thermo Scientific Chemicals Toluidine Blue O, pure

CAS: 92-31-9 Molecular Formula: C15H16ClN3S Molecular Weight (g/mol): 305.82 MDL Number: MFCD00011934 InChI Key: HNONEKILPDHFOL-UHFFFAOYSA-M Synonym: Basic blue 17,C.I. 52040,Tolonium chloride PubChem CID: 7083 SMILES: [Cl-].CN(C)C1=CC=C2N=C3C=C(C)C(N)=CC3=[S+]C2=C1

PubChem CID 7083
CAS 92-31-9
Molecular Weight (g/mol) 305.82
MDL Number MFCD00011934
SMILES [Cl-].CN(C)C1=CC=C2N=C3C=C(C)C(N)=CC3=[S+]C2=C1
Synonym Basic blue 17,C.I. 52040,Tolonium chloride
InChI Key HNONEKILPDHFOL-UHFFFAOYSA-M
Molecular Formula C15H16ClN3S
8

Thermo Scientific Chemicals Light Green SF Yellowish

CAS: 5141-20-8 Molecular Formula: C37H34N2Na2O9S3 Molecular Weight (g/mol): 792.844 MDL Number: MFCD00012121 InChI Key: DGOBMKYRQHEFGQ-UHFFFAOYSA-L Synonym: Acid Green 5; C.I. 42095 PubChem CID: 21223 ChEBI: CHEBI:87065 IUPAC Name: disodium;3-[[N-ethyl-4-[[4-[ethyl-[(3-sulfonatophenyl)methyl]azaniumylidene]cyclohexa-2,5-dien-1-ylidene]-(4-sulfonatophenyl)methyl]anilino]methyl]benzenesulfonate SMILES: CCN(CC1=CC(=CC=C1)S(=O)(=O)[O-])C2=CC=C(C=C2)C(=C3C=CC(=[N+](CC)CC4=CC(=CC=C4)S(=O)(=O)[O-])C=C3)C5=CC=C(C=C5)S(=O)(=O)[O-].[Na+].[Na+]

PubChem CID 21223
CAS 5141-20-8
Molecular Weight (g/mol) 792.844
ChEBI CHEBI:87065
MDL Number MFCD00012121
SMILES CCN(CC1=CC(=CC=C1)S(=O)(=O)[O-])C2=CC=C(C=C2)C(=C3C=CC(=[N+](CC)CC4=CC(=CC=C4)S(=O)(=O)[O-])C=C3)C5=CC=C(C=C5)S(=O)(=O)[O-].[Na+].[Na+]
Synonym Acid Green 5; C.I. 42095
IUPAC Name disodium;3-[[N-ethyl-4-[[4-[ethyl-[(3-sulfonatophenyl)methyl]azaniumylidene]cyclohexa-2,5-dien-1-ylidene]-(4-sulfonatophenyl)methyl]anilino]methyl]benzenesulfonate
InChI Key DGOBMKYRQHEFGQ-UHFFFAOYSA-L
Molecular Formula C37H34N2Na2O9S3
9

Thermo Scientific Chemicals Bromophenol Blue

CAS: 115-39-9 Molecular Formula: C19H10Br4O5S Molecular Weight (g/mol): 669.96 MDL Number: MFCD00005875 InChI Key: UDSAIICHUKSCKT-UHFFFAOYSA-N Synonym: Bromphenol Blue PubChem CID: 8272 ChEBI: CHEBI:59424 IUPAC Name: 2,6-dibromo-4-[3-(3,5-dibromo-4-hydroxyphenyl)-1,1-dioxo-2,1$l^{6}-benzoxathiol-3-yl]phenol SMILES: C1=CC=C2C(=C1)C(OS2(=O)=O)(C3=CC(=C(C(=C3)Br)O)Br)C4=CC(=C(C(=C4)Br)O)Br

EDGE
PubChem CID 8272
CAS 115-39-9
Molecular Weight (g/mol) 669.96
ChEBI CHEBI:59424
MDL Number MFCD00005875
SMILES C1=CC=C2C(=C1)C(OS2(=O)=O)(C3=CC(=C(C(=C3)Br)O)Br)C4=CC(=C(C(=C4)Br)O)Br
Synonym Bromphenol Blue
IUPAC Name 2,6-dibromo-4-[3-(3,5-dibromo-4-hydroxyphenyl)-1,1-dioxo-2,1$l^{6}-benzoxathiol-3-yl]phenol
InChI Key UDSAIICHUKSCKT-UHFFFAOYSA-N
Molecular Formula C19H10Br4O5S
10
Promotions Available

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

EDGE
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
11

Thermo Scientific Chemicals Litmus, pure, indicator grade

CAS: 1393-92-6 MDL Number: MFCD00131528

EDGE
CAS 1393-92-6
MDL Number MFCD00131528
12

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

CAS: 34722-90-2 Molecular Formula: C27H27Br2NaO5S Molecular Weight (g/mol): 646.37 MDL Number: MFCD00077263,MFCD00077263,MFCD00077263 InChI Key: NMKFVGALBGZKGW-FKWCIMQXSA-M PubChem CID: 102183223 SMILES: [Na+].CC(C)C1=CC(\C(C2=CC=CC=C2S([O-])(=O)=O)=C2/C=C(C(C)C)C(=O)C(Br)=C2C)=C(C)C(Br)=C1O

EDGE
PubChem CID 102183223
CAS 34722-90-2
Molecular Weight (g/mol) 646.37
MDL Number MFCD00077263,MFCD00077263,MFCD00077263
SMILES [Na+].CC(C)C1=CC(\C(C2=CC=CC=C2S([O-])(=O)=O)=C2/C=C(C(C)C)C(=O)C(Br)=C2C)=C(C)C(Br)=C1O
InChI Key NMKFVGALBGZKGW-FKWCIMQXSA-M
Molecular Formula C27H27Br2NaO5S
13

Thermo Scientific Chemicals Methyl Orange, 0.1% w/v aq. soln.

EDGE
14

Thermo Scientific Chemicals Bromocresol Green sodium salt, 0.04% w/v aq. soln.

CAS: 62625-32-5 MDL Number: MFCD00148898 Synonym: Bromocresol Green, water soluble

EDGE
CAS 62625-32-5
MDL Number MFCD00148898
Synonym Bromocresol Green, water soluble
15

Thermo Scientific Chemicals Oil Red O

CAS: 1320-06-5 Molecular Formula: C26H24N4O Molecular Weight (g/mol): 408.51 MDL Number: MFCD00003898 InChI Key: HJAYEODIXUYVIC-LTFAAIOASA-N Synonym: C.I. 26125; Solvent Red 27 PubChem CID: 6046885 IUPAC Name: (1Z)-1-[[4-[(2,5-dimethylphenyl)diazenyl]-2,5-dimethylphenyl]hydrazinylidene]naphthalen-2-one SMILES: CC1=CC=C(C)C(=C1)N=NC1=CC(C)=C(N\N=C2/C(=O)C=CC3=CC=CC=C23)C=C1C

EDGE
PubChem CID 6046885
CAS 1320-06-5
Molecular Weight (g/mol) 408.51
MDL Number MFCD00003898
SMILES CC1=CC=C(C)C(=C1)N=NC1=CC(C)=C(N\N=C2/C(=O)C=CC3=CC=CC=C23)C=C1C
Synonym C.I. 26125; Solvent Red 27
IUPAC Name (1Z)-1-[[4-[(2,5-dimethylphenyl)diazenyl]-2,5-dimethylphenyl]hydrazinylidene]naphthalen-2-one
InChI Key HJAYEODIXUYVIC-LTFAAIOASA-N
Molecular Formula C26H24N4O