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.

1 – 15 of 246 results

Thermo Scientific Chemicals Eosin Y, pure, certified

Pricing and Availability

Thermo Scientific Chemicals Nigrosine, pure, water soluble, high purity biological stain

CAS: 8005-03-6 Molecular Formula: C22H14N6Na2O9S2 Molecular Weight (g/mol): 616.49 MDL Number: MFCD00044681 InChI Key: HKBVRFLHNUEVRO-HMDKGIQMSA-L Synonym: Acid Black 2,C.I. 50420 PubChem CID: 44134531 IUPAC Name: disodium;4-amino-3-[(4-nitrophenyl)diazenyl]-5-oxo-6-(phenylhydrazinylidene)naphthalene-2,7-disulfonate SMILES: C1=CC=C(C=C1)NN=C2C(=CC3=CC(=C(C(=C3C2=O)N)N=NC4=CC=C(C=C4)[N+](=O)[O-])S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+]

Pricing and Availability
Specifications

PubChem CID	44134531
CAS	8005-03-6
Molecular Weight (g/mol)	616.49
MDL Number	MFCD00044681
SMILES	C1=CC=C(C=C1)NN=C2C(=CC3=CC(=C(C(=C3C2=O)N)N=NC4=CC=C(C=C4)[N+](=O)[O-])S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+]
Synonym	Acid Black 2,C.I. 50420
IUPAC Name	disodium;4-amino-3-[(4-nitrophenyl)diazenyl]-5-oxo-6-(phenylhydrazinylidene)naphthalene-2,7-disulfonate
InChI Key	HKBVRFLHNUEVRO-HMDKGIQMSA-L
Molecular Formula	C22H14N6Na2O9S2

Thermo Scientific Chemicals Nile Blue A, pure, certified

CAS: 3625-57-8 Molecular Formula: C40H40N6O6S Molecular Weight (g/mol): 732.84 MDL Number: MFCD00064529 InChI Key: QIRDPEPUXNCOLD-UHFFFAOYSA-N Synonym: Nile blue sulfate,C.I. 51180 PubChem CID: 19256 IUPAC Name: [9-(diethylamino)benzo[a]phenoxazin-5-ylidene]azanium;sulfate SMILES: CCN(CC)C1=CC2=C(C=C1)N=C3C4=CC=CC=C4C(=[NH2+])C=C3O2.CCN(CC)C1=CC2=C(C=C1)N=C3C4=CC=CC=C4C(=[NH2+])C=C3O2.[O-]S(=O)(=O)[O-]

Pricing and Availability
Specifications

PubChem CID	19256
CAS	3625-57-8
Molecular Weight (g/mol)	732.84
MDL Number	MFCD00064529
SMILES	CCN(CC)C1=CC2=C(C=C1)N=C3C4=CC=CC=C4C(=[NH2+])C=C3O2.CCN(CC)C1=CC2=C(C=C1)N=C3C4=CC=CC=C4C(=[NH2+])C=C3O2.[O-]S(=O)(=O)[O-]
Synonym	Nile blue sulfate,C.I. 51180
IUPAC Name	[9-(diethylamino)benzo[a]phenoxazin-5-ylidene]azanium;sulfate
InChI Key	QIRDPEPUXNCOLD-UHFFFAOYSA-N
Molecular Formula	C40H40N6O6S

Thermo Scientific Chemicals Rhodamine B, 98+%, pure

CAS: 81-88-9 Molecular Formula: C28H31ClN2O3 Molecular Weight (g/mol): 479.02 MDL Number: MFCD00011931 InChI Key: PYWVYCXTNDRMGF-UHFFFAOYSA-N Synonym: Basic Violet 10,C.I. 45170 PubChem CID: 6694 ChEBI: CHEBI:52334 IUPAC Name: [9-(2-carboxyphenyl)-6-(diethylamino)xanthen-3-ylidene]-diethylazanium;chloride SMILES: [Cl-].CCN(CC)C1=CC2=[O+]C3=CC(=CC=C3C(C3=CC=CC=C3C(O)=O)=C2C=C1)N(CC)CC

Pricing and Availability
Specifications

PubChem CID	6694
CAS	81-88-9
Molecular Weight (g/mol)	479.02
ChEBI	CHEBI:52334
MDL Number	MFCD00011931
SMILES	[Cl-].CCN(CC)C1=CC2=[O+]C3=CC(=CC=C3C(C3=CC=CC=C3C(O)=O)=C2C=C1)N(CC)CC
Synonym	Basic Violet 10,C.I. 45170
IUPAC Name	[9-(2-carboxyphenyl)-6-(diethylamino)xanthen-3-ylidene]-diethylazanium;chloride
InChI Key	PYWVYCXTNDRMGF-UHFFFAOYSA-N
Molecular Formula	C28H31ClN2O3

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 and 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

Thermo Scientific Chemicals Litmus, pure, indicator grade

CAS: 1393-92-6 MDL Number: MFCD00131528

Pricing and Availability
Specifications

CAS	1393-92-6
MDL Number	MFCD00131528

2,6-Dichloroindophenol, sodium salt hydrate, 95%

CAS: 1266615-56-8 Molecular Formula: C12H6Cl2NNaO2 Molecular Weight (g/mol): 290.07 MDL Number: MFCD00150014 InChI Key: CVSUAFOWIXUYQA-UHFFFAOYSA-M Synonym: Tillman's reagent hydrate PubChem CID: 23696612 SMILES: [Na+].[O-]C1=CC=C(C=C1)N=C1C=C(Cl)C(=O)C(Cl)=C1

Pricing and Availability
Specifications

PubChem CID	23696612
CAS	1266615-56-8
Molecular Weight (g/mol)	290.07
MDL Number	MFCD00150014
SMILES	[Na+].[O-]C1=CC=C(C=C1)N=C1C=C(Cl)C(=O)C(Cl)=C1
Synonym	Tillman's reagent hydrate
InChI Key	CVSUAFOWIXUYQA-UHFFFAOYSA-M
Molecular Formula	C12H6Cl2NNaO2

Thermo Scientific Chemicals Phenol Red sodium salt, ACS reagent

CAS: 34487-61-1 Molecular Formula: C19H13NaO5S Molecular Weight (g/mol): 376.358 MDL Number: MFCD00066901 InChI Key: HKHYOKBQJILTEI-UHFFFAOYSA-M PubChem CID: 23686673 IUPAC Name: sodium;4-[3-(4-hydroxyphenyl)-1,1-dioxo-2,1$l^{6}-benzoxathiol-3-yl]phenolate SMILES: C1=CC=C2C(=C1)C(OS2(=O)=O)(C3=CC=C(C=C3)O)C4=CC=C(C=C4)[O-].[Na+]

Pricing and Availability
Specifications

PubChem CID	23686673
CAS	34487-61-1
Molecular Weight (g/mol)	376.358
MDL Number	MFCD00066901
SMILES	C1=CC=C2C(=C1)C(OS2(=O)=O)(C3=CC=C(C=C3)O)C4=CC=C(C=C4)[O-].[Na+]
IUPAC Name	sodium;4-[3-(4-hydroxyphenyl)-1,1-dioxo-2,1$l^{6}-benzoxathiol-3-yl]phenolate
InChI Key	HKHYOKBQJILTEI-UHFFFAOYSA-M
Molecular Formula	C19H13NaO5S

Thermo Scientific Chemicals Indigo Carmine, pure, certified

CAS: 860-22-0 Molecular Formula: C16H8N2Na2O8S2 Molecular Weight (g/mol): 466.35 MDL Number: MFCD00005723 InChI Key: KHLVKKOJDHCJMG-QDBORUFSSA-L Synonym: Acid Blue 74,C.I. 73015,5, 5'-Indigodisulfonic acid, disodium salt PubChem CID: 5284351 IUPAC Name: disodium;(2E)-3-oxo-2-(3-oxo-5-sulfonato-1H-indol-2-ylidene)-1H-indole-5-sulfonate SMILES: [Na+].[Na+].[O-]S(=O)(=O)C1=CC=C2N\C(C(=O)C2=C1)=C1\NC2=CC=C(C=C2C1=O)S([O-])(=O)=O

Pricing and Availability
Specifications

PubChem CID	5284351
CAS	860-22-0
Molecular Weight (g/mol)	466.35
MDL Number	MFCD00005723
SMILES	[Na+].[Na+].[O-]S(=O)(=O)C1=CC=C2N\C(C(=O)C2=C1)=C1\NC2=CC=C(C=C2C1=O)S([O-])(=O)=O
Synonym	Acid Blue 74,C.I. 73015,5, 5'-Indigodisulfonic acid, disodium salt
IUPAC Name	disodium;(2E)-3-oxo-2-(3-oxo-5-sulfonato-1H-indol-2-ylidene)-1H-indole-5-sulfonate
InChI Key	KHLVKKOJDHCJMG-QDBORUFSSA-L
Molecular Formula	C16H8N2Na2O8S2

Thermo Scientific Chemicals Alizarin Red S, pure, certified

CAS: 130-22-3 Molecular Formula: C14H7NaO7S Molecular Weight (g/mol): 342.253 MDL Number: MFCD00013049 InChI Key: HFVAFDPGUJEFBQ-UHFFFAOYSA-M Synonym: 9,10-Dihydro-3,4-dihydroxy-9,10-dioxo-2-anthracenesulfonic acid, sodium salt,9, 10-Dihydro-3, 4-dihydroxy-9,Mordant Red 3,Sodium alizarinesulfonate PubChem CID: 3955344 ChEBI: CHEBI:87358 IUPAC Name: sodium;3,4-dihydroxy-9,10-dioxoanthracene-2-sulfonate SMILES: C1=CC=C2C(=C1)C(=O)C3=CC(=C(C(=C3C2=O)O)O)S(=O)(=O)[O-].[Na+]

Pricing and Availability
Specifications

PubChem CID	3955344
CAS	130-22-3
Molecular Weight (g/mol)	342.253
ChEBI	CHEBI:87358
MDL Number	MFCD00013049
SMILES	C1=CC=C2C(=C1)C(=O)C3=CC(=C(C(=C3C2=O)O)O)S(=O)(=O)[O-].[Na+]
Synonym	9,10-Dihydro-3,4-dihydroxy-9,10-dioxo-2-anthracenesulfonic acid, sodium salt,9, 10-Dihydro-3, 4-dihydroxy-9,Mordant Red 3,Sodium alizarinesulfonate
IUPAC Name	sodium;3,4-dihydroxy-9,10-dioxoanthracene-2-sulfonate
InChI Key	HFVAFDPGUJEFBQ-UHFFFAOYSA-M
Molecular Formula	C14H7NaO7S

Thermo Scientific Chemicals Xylenol Orange, sodium salt, pure, water soluble

CAS: 3618-43-7 Molecular Formula: C₃₁H₂₈N₂Na₄O₁₃S

Pricing and Availability
Specifications

CAS	3618-43-7
Molecular Formula	C₃₁H₂₈N₂Na₄O₁₃S

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 and 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

NBD chloride, 98%

CAS: 10199-89-0 Molecular Formula: C6H2ClN3O3 Molecular Weight (g/mol): 199.55 MDL Number: MFCD00005808 InChI Key: IGHBXJSNZCFXNK-UHFFFAOYSA-N Synonym: 4-Chloro-7-nitrobenzofurazan,4-Chloro-7-nitrobenzo-2-oxa-1, 3-diazole PubChem CID: 25043 ChEBI: CHEBI:78878 IUPAC Name: 4-chloro-7-nitro-2,1,3-benzoxadiazole SMILES: C1=C(C2=NON=C2C(=C1)Cl)[N+](=O)[O-]

Pricing and Availability
Specifications

PubChem CID	25043
CAS	10199-89-0
Molecular Weight (g/mol)	199.55
ChEBI	CHEBI:78878
MDL Number	MFCD00005808
SMILES	C1=C(C2=NON=C2C(=C1)Cl)[N+](=O)[O-]
Synonym	4-Chloro-7-nitrobenzofurazan,4-Chloro-7-nitrobenzo-2-oxa-1, 3-diazole
IUPAC Name	4-chloro-7-nitro-2,1,3-benzoxadiazole
InChI Key	IGHBXJSNZCFXNK-UHFFFAOYSA-N
Molecular Formula	C6H2ClN3O3

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 and 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

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+]

Pricing and Availability
Specifications

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

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