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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 (57)

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1 – 15 of 27 results
1

Crystal Violet, ACS, 90+%

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; C.I. 42555 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-]

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; C.I. 42555
IUPAC Name [4-[bis[4-(dimethylamino)phenyl]methylidene]cyclohexa-2,5-dien-1-ylidene]-dimethylazanium;chloride
InChI Key ZXJXZNDDNMQXFV-UHFFFAOYSA-M
Molecular Formula C25H30ClN3
2

Carminic acid, 70-90%

CAS: 1260-17-9 Molecular Formula: C22H20O13 Molecular Weight (g/mol): 492.39 MDL Number: MFCD00167028 InChI Key: DGQLVPJVXFOQEV-NGOCYOHBSA-N Synonym: C.I. 75470,Natural Red 4 PubChem CID: 10255083 ChEBI: CHEBI:78310 IUPAC Name: 3,5,6,8-tetrahydroxy-1-methyl-9,10-dioxo-7-[(2S,3R,4R,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]anthracene-2-carboxylic acid SMILES: CC1=C(C(O)=O)C(O)=CC2=C1C(=O)C1=C(O)C([C@H]3O[C@H](CO)[C@@H](O)[C@H](O)[C@H]3O)=C(O)C(O)=C1C2=O

PubChem CID 10255083
CAS 1260-17-9
Molecular Weight (g/mol) 492.39
ChEBI CHEBI:78310
MDL Number MFCD00167028
SMILES CC1=C(C(O)=O)C(O)=CC2=C1C(=O)C1=C(O)C([C@H]3O[C@H](CO)[C@@H](O)[C@H](O)[C@H]3O)=C(O)C(O)=C1C2=O
Synonym C.I. 75470,Natural Red 4
IUPAC Name 3,5,6,8-tetrahydroxy-1-methyl-9,10-dioxo-7-[(2S,3R,4R,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]anthracene-2-carboxylic acid
InChI Key DGQLVPJVXFOQEV-NGOCYOHBSA-N
Molecular Formula C22H20O13
3

Thermo Scientific Chemicals Fluorescein, disodium salt dihydrate, 90%, pure

CAS: 1264198-62-0 Molecular Formula: C20H10Na2O5·2H2O MDL Number: MFCD00150814 Synonym: Acid Yellow 73 dihydrate,Fluorescein, water soluble dihydrate,Uranine dihydrate,C.I. 45350 dihydrate

CAS 1264198-62-0
MDL Number MFCD00150814
Synonym Acid Yellow 73 dihydrate,Fluorescein, water soluble dihydrate,Uranine dihydrate,C.I. 45350 dihydrate
Molecular Formula C20H10Na2O5·2H2O
4

Thermo Scientific Chemicals Nitro Blue Tetrazolium Chloride monohydrate, 90%

CAS: 298-83-9 | C40H30Cl2N10O6 | 817.644 g/mol

Molecular Weight (g/mol) 817.644
Color Yellow
Loss on Drying 10% max. (105°C)
ChEBI CHEBI:9505
Physical Form Powder
CAS Min % 88.0
Chemical Name or Material Nitro Blue Tetrazolium Chloride monohydrate
SMILES COC1=C(C=CC(=C1)C2=CC(=C(C=C2)[N+]3=NC(=NN3C4=CC=C(C=C4)[N+](=O)[O-])C5=CC=CC=C5)OC)[N+]6=NC(=NN6C7=CC=C(C=C7)[N+](=O)[O-])C8=CC=CC=C8.[Cl-].[Cl-]
InChI Key FSVCQIDHPKZJSO-UHFFFAOYSA-L
Assay Percent Range 90%
PubChem CID 9281
Percent Purity ≥88%
CAS 7732-18-5
Infrared Spectrum Authentic
Health Hazard 3 GHS P Statement:
Wear protective gloves/protective clothing/eye protection/face protection.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Do not breathe dust/fume/gas/mist/vapors/spray.
Do not eat, drink or smoke when using this product.
IF exposed or concerned: Get medical advice/attention.
IF ON SKIN: Wash with plenty of soap and water.

WARNING: The information provided on this web site was developed in compliance with European Union (EU) regulations and is correct to the best of our knowledge, information and belief at the date of its publication. The information given is designed only as a guide for safe handling and use. It is not to be considered as either a warranty or quality specification.
MDL Number MFCD00150013
Health Hazard 2 GHS H Statement:
Harmful if swallowed.
Harmful in contact with skin.
Harmful if inhaled.
Causes serious eye irritation.
May cause respiratory irritation.
Causes skin irritation.
May cause damage to organs.
Packaging Glass bottle
Synonym Nitro BT,Nitro blue tetrazolium
IUPAC Name 2-[2-methoxy-4-[3-methoxy-4-[3-(4-nitrophenyl)-5-phenyltetrazol-2-ium-2-yl]phenyl]phenyl]-3-(4-nitrophenyl)-5-phenyltetrazol-2-ium;dichloride
Molecular Formula C40H30Cl2N10O6
Formula Weight 867.69
CAS Max % 100.0
5

Thermo Scientific Chemicals Fluorescein Isothiocyanate Isomer I, 90%, Pure

CAS: 3326-32-7 Molecular Formula: C21H11NO5S Molecular Weight (g/mol): 389.381 MDL Number: MFCD00005063 InChI Key: MHMNJMPURVTYEJ-UHFFFAOYSA-N Synonym: 5-FITC,5-Isothiocyanato fluorescein PubChem CID: 18730 ChEBI: CHEBI:37918 IUPAC Name: 3',6'-dihydroxy-6-isothiocyanatospiro[2-benzofuran-3,9'-xanthene]-1-one SMILES: C1=CC2=C(C=C1N=C=S)C(=O)OC23C4=C(C=C(C=C4)O)OC5=C3C=CC(=C5)O

PubChem CID 18730
CAS 3326-32-7
Molecular Weight (g/mol) 389.381
ChEBI CHEBI:37918
MDL Number MFCD00005063
SMILES C1=CC2=C(C=C1N=C=S)C(=O)OC23C4=C(C=C(C=C4)O)OC5=C3C=CC(=C5)O
Synonym 5-FITC,5-Isothiocyanato fluorescein
IUPAC Name 3',6'-dihydroxy-6-isothiocyanatospiro[2-benzofuran-3,9'-xanthene]-1-one
InChI Key MHMNJMPURVTYEJ-UHFFFAOYSA-N
Molecular Formula C21H11NO5S
6

Crystal poncaeu 6R, 90%, MP Biomedicals™

CAS: 2766-77-0 Molecular Formula: C20H14N2Na2O7S2 Molecular Weight (g/mol): 504.44 MDL Number: MFCD00013279 InChI Key: AJCQNUXLYVWDGD-UHFFFAOYSA-N Synonym: Acid Red 44,Brilliant Crystal Scarlet PubChem CID: 88640932 IUPAC Name: 8-[2-(naphthalen-1-yl)hydrazin-1-ylidene]-7-oxo-7,8-dihydronaphthalene-1,3-disulfonic acid disodium SMILES: [Na].[Na].OS(=O)(=O)C1=CC(=C2C(C=CC(=O)C2=NNC2=CC=CC3=CC=CC=C23)=C1)S(O)(=O)=O

PubChem CID 88640932
CAS 2766-77-0
Molecular Weight (g/mol) 504.44
MDL Number MFCD00013279
SMILES [Na].[Na].OS(=O)(=O)C1=CC(=C2C(C=CC(=O)C2=NNC2=CC=CC3=CC=CC=C23)=C1)S(O)(=O)=O
Synonym Acid Red 44,Brilliant Crystal Scarlet
IUPAC Name 8-[2-(naphthalen-1-yl)hydrazin-1-ylidene]-7-oxo-7,8-dihydronaphthalene-1,3-disulfonic acid disodium
InChI Key AJCQNUXLYVWDGD-UHFFFAOYSA-N
Molecular Formula C20H14N2Na2O7S2
7

Thermo Scientific Chemicals Brilliant Blue G, pure

CAS: 6104-58-1 Molecular Formula: C47H48N3NaO7S2 Molecular Weight (g/mol): 854.025 MDL Number: MFCD00078482 InChI Key: RWVGQQGBQSJDQV-UHFFFAOYSA-M Synonym: Acid Blue 90,Brilliant Blue G 250,C.I. 42655 PubChem CID: 6328534 IUPAC Name: sodium;3-[[4-[(Z)-[4-(4-ethoxyanilino)phenyl]-[4-[ethyl-[(3-sulfonatophenyl)methyl]azaniumylidene]-2-methylcyclohexa-2,5-dien-1-ylidene]methyl]-N-ethyl-3-methylanilino]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=C3C)C5=CC=C(C=C5)NC6=CC=C(C=C6)OCC)C.[Na+]

EDGE
PubChem CID 6328534
CAS 6104-58-1
Molecular Weight (g/mol) 854.025
MDL Number MFCD00078482
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=C3C)C5=CC=C(C=C5)NC6=CC=C(C=C6)OCC)C.[Na+]
Synonym Acid Blue 90,Brilliant Blue G 250,C.I. 42655
IUPAC Name sodium;3-[[4-[(Z)-[4-(4-ethoxyanilino)phenyl]-[4-[ethyl-[(3-sulfonatophenyl)methyl]azaniumylidene]-2-methylcyclohexa-2,5-dien-1-ylidene]methyl]-N-ethyl-3-methylanilino]methyl]benzenesulfonate
InChI Key RWVGQQGBQSJDQV-UHFFFAOYSA-M
Molecular Formula C47H48N3NaO7S2
8

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
9

Coomassie Brilliant Blue G-250, MP Biomedicals™

CAS: 6104-58-1 Molecular Formula: C47H48N3NaO7S2 PubChem CID: 6328534 IUPAC Name: sodium;3-[[4-[(Z)-[4-(4-ethoxyanilino)phenyl]-[4-[ethyl-[(3-sulfonatophenyl)methyl]azaniumylidene]-2-methylcyclohexa-2,5-dien-1-ylidene]methyl]-N-ethyl-3-methylanilino]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=C3C)C5=CC=C(C=C5)NC6=CC=C(C=C6)OCC)C.[Na+]

PubChem CID 6328534
CAS 6104-58-1
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=C3C)C5=CC=C(C=C5)NC6=CC=C(C=C6)OCC)C.[Na+]
IUPAC Name sodium;3-[[4-[(Z)-[4-(4-ethoxyanilino)phenyl]-[4-[ethyl-[(3-sulfonatophenyl)methyl]azaniumylidene]-2-methylcyclohexa-2,5-dien-1-ylidene]methyl]-N-ethyl-3-methylanilino]methyl]benzenesulfonate
Molecular Formula C47H48N3NaO7S2
10

Ethyl Violet, 80%, Thermo Scientific™

CAS: 2390-59-2 Molecular Formula: C31H42ClN3 Molecular Weight (g/mol): 492.15 MDL Number: MFCD00011765 InChI Key: JVICFMRAVNKDOE-UHFFFAOYSA-M Synonym: Basic Violet 4,C.I. 42600 PubChem CID: 16955 IUPAC Name: [4-[bis[4-(diethylamino)phenyl]methylidene]cyclohexa-2,5-dien-1-ylidene]-diethylazanium;chloride SMILES: [Cl-].CCN(CC)C1=CC=C(C=C1)[C+](C1=CC=C(C=C1)N(CC)CC)C1=CC=C(C=C1)N(CC)CC

PubChem CID 16955
CAS 2390-59-2
Molecular Weight (g/mol) 492.15
MDL Number MFCD00011765
SMILES [Cl-].CCN(CC)C1=CC=C(C=C1)[C+](C1=CC=C(C=C1)N(CC)CC)C1=CC=C(C=C1)N(CC)CC
Synonym Basic Violet 4,C.I. 42600
IUPAC Name [4-[bis[4-(diethylamino)phenyl]methylidene]cyclohexa-2,5-dien-1-ylidene]-diethylazanium;chloride
InChI Key JVICFMRAVNKDOE-UHFFFAOYSA-M
Molecular Formula C31H42ClN3
12

Thermo Scientific Chemicals Bromothymol Blue sodium salt

CAS: 34722-90-2 Molecular Formula: C27H27Br2NaO5S Molecular Weight (g/mol): 646.37 MDL Number: MFCD00077263,MFCD00077263,MFCD00077263 InChI Key: NMKFVGALBGZKGW-FKWCIMQXSA-M Synonym: Bromothymol Blue, water soluble PubChem CID: 102183223 IUPAC Name: sodium;2-bromo-4-[(Z)-(3-bromo-2-methyl-4-oxo-5-propan-2-ylcyclohexa-2,5-dien-1-ylidene)-(2-sulfophenyl)methyl]-3-methyl-6-propan-2-ylphenolate 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

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
Synonym Bromothymol Blue, water soluble
IUPAC Name sodium;2-bromo-4-[(Z)-(3-bromo-2-methyl-4-oxo-5-propan-2-ylcyclohexa-2,5-dien-1-ylidene)-(2-sulfophenyl)methyl]-3-methyl-6-propan-2-ylphenolate
InChI Key NMKFVGALBGZKGW-FKWCIMQXSA-M
Molecular Formula C27H27Br2NaO5S
13

Thermo Scientific Chemicals Bromothymol Blue, sodium salt, pure, water soluble, indicator

CAS: 34722-90-2 Molecular Formula: C27H27Br2NaO5S Molecular Weight (g/mol): 646.37 MDL Number: MFCD00077263,MFCD00077263,MFCD00077263 InChI Key: NMKFVGALBGZKGW-FKWCIMQXSA-M Synonym: Bromthymol Blue, sodium salt,3', 3''-Dibromothymolsulfonephthalein, sodium salt,BTB PubChem CID: 102183223 IUPAC Name: sodium;2-bromo-4-[(Z)-(3-bromo-2-methyl-4-oxo-5-propan-2-ylcyclohexa-2,5-dien-1-ylidene)-(2-sulfophenyl)methyl]-3-methyl-6-propan-2-ylphenolate 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

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
Synonym Bromthymol Blue, sodium salt,3', 3''-Dibromothymolsulfonephthalein, sodium salt,BTB
IUPAC Name sodium;2-bromo-4-[(Z)-(3-bromo-2-methyl-4-oxo-5-propan-2-ylcyclohexa-2,5-dien-1-ylidene)-(2-sulfophenyl)methyl]-3-methyl-6-propan-2-ylphenolate
InChI Key NMKFVGALBGZKGW-FKWCIMQXSA-M
Molecular Formula C27H27Br2NaO5S
15

Solvent blue 35, MP Biomedicals™

CAS: 17354-14-2 Molecular Formula: C22H26N2O2 Molecular Weight (g/mol): 350.462 MDL Number: MFCD00011714 InChI Key: OCQDPIXQTSYZJL-UHFFFAOYSA-N Synonym: C.I. 61554,Sudan Blue II PubChem CID: 3766139 IUPAC Name: 1,4-bis(butylamino)anthracene-9,10-dione SMILES: CCCCNC1=C2C(=C(C=C1)NCCCC)C(=O)C3=CC=CC=C3C2=O

PubChem CID 3766139
CAS 17354-14-2
Molecular Weight (g/mol) 350.462
MDL Number MFCD00011714
SMILES CCCCNC1=C2C(=C(C=C1)NCCCC)C(=O)C3=CC=CC=C3C2=O
Synonym C.I. 61554,Sudan Blue II
IUPAC Name 1,4-bis(butylamino)anthracene-9,10-dione
InChI Key OCQDPIXQTSYZJL-UHFFFAOYSA-N
Molecular Formula C22H26N2O2