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.

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1,966 – 1,980 of 7,125 results

1,966

0.15% KI, 0.076% Iodine, 1.2% Boric Acid, Aqueous Solution, Reagents

0.15% KI, 0.076% Iodine, 1.2% Boric Acid, Aqueous Solution, Reagent, for general laboratory use. Manufactured in ISO 9001 facility.

Pricing & Availability

1,967

Phenolphthalein, Reagent ACS Meets USP and ACS Specifications, Reagents

CAS: 77-09-8 Molecular Formula: C20H14O4 Molecular Weight (g/mol): 318.33 InChI Key: KJFMBFZCATUALV-UHFFFAOYSA-N Synonym: 3,3-Bis(4-hydroxyphenyl)isobenzofuran-1(3H)-one IUPAC Name: 3,3-bis(4-hydroxyphenyl)-1,3-dihydro-2-benzofuran-1-one SMILES: OC1=CC=C(C=C1)C1(OC(=O)C2=CC=CC=C12)C1=CC=C(O)C=C1

Pricing & Availability
Specifications

CAS	77-09-8
Molecular Weight (g/mol)	318.33
SMILES	OC1=CC=C(C=C1)C1(OC(=O)C2=CC=CC=C12)C1=CC=C(O)C=C1
Synonym	3,3-Bis(4-hydroxyphenyl)isobenzofuran-1(3H)-one
IUPAC Name	3,3-bis(4-hydroxyphenyl)-1,3-dihydro-2-benzofuran-1-one
InChI Key	KJFMBFZCATUALV-UHFFFAOYSA-N
Molecular Formula	C20H14O4

1,968

Congo Red, Reagents

CAS: 573-58-0 Molecular Formula: C32H22N6Na2O6S2 Molecular Weight (g/mol): 696.66 InChI Key: IQFVPQOLBLOTPF-UHFFFAOYSA-L Synonym: Direct Red 28, Color Index 22120 IUPAC Name: disodium 4-amino-3-(2-{4'-[2-(1-amino-4-sulfonatonaphthalen-2-yl)diazen-1-yl]-[1,1'-biphenyl]-4-yl}diazen-1-yl)naphthalene-1-sulfonate SMILES: [Na+].[Na+].NC1=C2C=CC=CC2=C(C=C1N=NC1=CC=C(C=C1)C1=CC=C(C=C1)N=NC1=CC(=C2C=CC=CC2=C1N)S([O-])(=O)=O)S([O-])(=O)=O

Pricing & Availability
Specifications

CAS	573-58-0
Molecular Weight (g/mol)	696.66
SMILES	[Na+].[Na+].NC1=C2C=CC=CC2=C(C=C1N=NC1=CC=C(C=C1)C1=CC=C(C=C1)N=NC1=CC(=C2C=CC=CC2=C1N)S([O-])(=O)=O)S([O-])(=O)=O
Synonym	Direct Red 28, Color Index 22120
IUPAC Name	disodium 4-amino-3-(2-{4'-[2-(1-amino-4-sulfonatonaphthalen-2-yl)diazen-1-yl]-[1,1'-biphenyl]-4-yl}diazen-1-yl)naphthalene-1-sulfonate
InChI Key	IQFVPQOLBLOTPF-UHFFFAOYSA-L
Molecular Formula	C32H22N6Na2O6S2

1,969

Murexide, ACS Reagent (Ammonium Purpurate), Reagents

CAS: 3051-09-0 Molecular Formula: C8H8N6O6 Molecular Weight (g/mol): 284.19 InChI Key: PCCZWUCAYILEMX-UHFFFAOYSA-O Synonym: Ammonium Purpurate, Color Index 56085 IUPAC Name: ammonium 2,4,6-trioxo-5-[(2,4,6-trioxo-1,3-diazinan-5-ylidene)amino]-1,3-diazinan-5-ide SMILES: [NH4+].O=C1NC(=O)[C-](N=C2C(=O)NC(=O)NC2=O)C(=O)N1

Pricing & Availability
Specifications

CAS	3051-09-0
Molecular Weight (g/mol)	284.19
SMILES	[NH4+].O=C1NC(=O)[C-](N=C2C(=O)NC(=O)NC2=O)C(=O)N1
Synonym	Ammonium Purpurate, Color Index 56085
IUPAC Name	ammonium 2,4,6-trioxo-5-[(2,4,6-trioxo-1,3-diazinan-5-ylidene)amino]-1,3-diazinan-5-ide
InChI Key	PCCZWUCAYILEMX-UHFFFAOYSA-O
Molecular Formula	C8H8N6O6

1,970

CAS	3051-09-0
Molecular Weight (g/mol)	284.19
SMILES	[NH4+].O=C1NC(=O)[C-](N=C2C(=O)NC(=O)NC2=O)C(=O)N1
Synonym	Ammonium Purpurate, Color Index 56085
IUPAC Name	ammonium 2,4,6-trioxo-5-[(2,4,6-trioxo-1,3-diazinan-5-ylidene)amino]-1,3-diazinan-5-ide
InChI Key	PCCZWUCAYILEMX-UHFFFAOYSA-O
Molecular Formula	C8H8N6O6

1,971

Thymolphthalein Solution, 3 g/L, Reagents

Thymolphthalein Solution, 3 g/L, Reagent, for general laboratory use. Manufactured in ISO 9001 facility.

Pricing & Availability

1,972

Fast Green Dye Indicator, Reagents

Fast Green Dye Indicator, Reagent, for general laboratory use. Manufactured in ISO 9001 facility.

Pricing & Availability

1,973

Crystal Violet TS 1% in Glacial Acetic Acid, Reagents

CAS: 64-19-7 Molecular Formula: C2H4O2 Molecular Weight (g/mol): 60.05 MDL Number: MFCD00036152 InChI Key: QTBSBXVTEAMEQO-UHFFFAOYSA-N Synonym: Gentian Violet, Basic Violet 3 IUPAC Name: acetic acid SMILES: CC(O)=O

Pricing & Availability
Specifications

CAS	64-19-7
Molecular Weight (g/mol)	60.05
MDL Number	MFCD00036152
SMILES	CC(O)=O
Synonym	Gentian Violet, Basic Violet 3
IUPAC Name	acetic acid
InChI Key	QTBSBXVTEAMEQO-UHFFFAOYSA-N
Molecular Formula	C2H4O2

1,974

Phenol Red, ACS Reagent (Phenolsulfonphthalein), Reagents

CAS: 143-74-8 Molecular Formula: C19H14O5S Molecular Weight (g/mol): 354.38 InChI Key: BELBBZDIHDAJOR-UHFFFAOYSA-N Synonym: Phenolsulfonphthalein IUPAC Name: 3,3-bis(4-hydroxyphenyl)-3H-2,1λ⁶-benzoxathiole-1,1-dione SMILES: OC1=CC=C(C=C1)C1(OS(=O)(=O)C2=CC=CC=C12)C1=CC=C(O)C=C1

Pricing & Availability
Specifications

CAS	143-74-8
Molecular Weight (g/mol)	354.38
SMILES	OC1=CC=C(C=C1)C1(OS(=O)(=O)C2=CC=CC=C12)C1=CC=C(O)C=C1
Synonym	Phenolsulfonphthalein
IUPAC Name	3,3-bis(4-hydroxyphenyl)-3H-2,1λ⁶-benzoxathiole-1,1-dione
InChI Key	BELBBZDIHDAJOR-UHFFFAOYSA-N
Molecular Formula	C19H14O5S

1,975

Bromophenol Blue, 0.2% w/v, Aqueous pH Indicator, 3.0 (yellow) to 4.6 (blue), Reagents

Bromophenol Blue, 0.2% w/v, Aqueous pH Indicator, 3.0 (yellow) to 4.6 (blue), Reagent, for general laboratory use. Manufactured in ISO 9001 facility.

Pricing & Availability

1,976

Bromothymol Blue 0.1% w/v in 50% Ethanol, Reagents

Bromothymol Blue 0.1% w/v in 50% Ethanol, Reagent, for general laboratory use. Manufactured in ISO 9001 facility.

Pricing & Availability

1,977

Phenolphthalein, 0.0074% w/v in IPA, Reagents

CAS: 67-63-0 Molecular Formula: C3H8O Molecular Weight (g/mol): 60.10 InChI Key: KFZMGEQAYNKOFK-UHFFFAOYSA-N Synonym: 3,3-Bis(4-hydroxyphenyl)isobenzofuran-1(3H)-one IUPAC Name: propan-2-ol SMILES: CC(C)O

Pricing & Availability
Specifications

CAS	67-63-0
Molecular Weight (g/mol)	60.10
SMILES	CC(C)O
Synonym	3,3-Bis(4-hydroxyphenyl)isobenzofuran-1(3H)-one
IUPAC Name	propan-2-ol
InChI Key	KFZMGEQAYNKOFK-UHFFFAOYSA-N
Molecular Formula	C3H8O

1,978

Phenolphthalein Indicator, 0.25% w/v in Methanol, Reagents

Phenolphthalein Indicator, 0.25% w/v in Methanol, Reagent, for general laboratory use. Manufactured in ISO 9001 facility.

Pricing & Availability
Specifications

Boiling Point	65°C
Percent Purity	0.25%
CAS	77-09-8
Color	Colorless
Physical Form	Liquid
Packaging	Poly Bottle
Chemical Name or Material	Phenolphthalein Indicator, 0.25% w/v in Methanol
Grade	Reagent
Synonym	3,3-Bis(4-hydroxyphenyl)isobenzofuran-1(3H)-one
Molecular Formula	C20H14O4/CH3OH
Specific Gravity	0.8

1,979

Azo Violet Indicator, 0.025% w/v, Reagents

Azo Violet Indicator, 0.025% w/v, Reagent, for general laboratory use. Manufactured in ISO 9001 facility.

Pricing & Availability
Specifications

Boiling Point	100°C
Percent Purity	0.025%
CAS	74-39-5
Color	Violet
Physical Form	Liquid
Packaging	Glass Bottle
Chemical Name or Material	Azo Violet Indicator, 0.025% w/v
Grade	Reagent
Synonym	p-Nitrophenylazoresorcinol, 4-[(4-Nitrophenyl)diazenyl]benzene-1,3-diol
Specific Gravity	1.0001

1,980

Thymol Blue Indicator, 0.04% w/v, Reagents

Thymol Blue Indicator, 0.04% w/v, Reagent, for general laboratory use. Manufactured in ISO 9001 facility.

Pricing & Availability
Specifications

Boiling Point	100°C
Percent Purity	0.04%
CAS	62625-21-2
Color	Orange/Red
Physical Form	Liquid
Packaging	Poly Bottle
Chemical Name or Material	Thymol Blue Indicator, 0.04% w/v
Grade	Reagent
Synonym	Thymolsulfonphthalein
Specific Gravity	1.001

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