Stains Indicator Reagents-69

Product Short Description: BROMOPHENOL BLUE SODIUM SALT (ACS GRADE)

Product Technical Specification:

C.A.S. No.	34725-61-6
M.F.	C19H9Br4SO5Na
M.W.	691.97gm/mole

Specifications:

Dye Content (by Spectrophotometry)	>90%
Transition Range	pH 3.0-4.6
	Greenish Yellow-Blue
Solubility 0.1% (Dist. Water)	Clear solution
Absorption maximum (pH 3.0) ?1max	434-439nm
Absorption maximum (pH 4.6) ?2max	590-593nm
Absorptivity (A1%/1cm at pH 3.0 at ?1max)	320-370
Absorptivity (A1%/1cm at pH 4.6 at ?2max)	880-980
Loss On Drying (110°C)	<5%

Remarks:

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BROMOPYROGALLOL RED

Product Short Description: BROMOPYROGALLOL RED

Product Technical Specification:

C.A.S. No.	16574-43-9
M.F.	C19H10Br2O8S
M.W.	558.17gm/mole

Specifications:

Solubility 0.1% (in 95% EtOH)	Clear solution
Absorption Maximum (in 95% EtOH) ?max	554-557nm
Absorptivity (A1%/1cm at pH 6.5 at ?max)	>750
Loss On Drying (110°C)	<5%

Remarks:

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BROMOTHYMOL BLUE ACS GRADE

Product Short Description: BROMOTHYMOL BLUE (ACS GRADE)

Product Technical Specification:

C.A.S. No.	76-59-5
M.F.	C27H28Br2O5S
M.W.	624.40gm/mole

Specifications:

Dye Content (by Spectrophotometry)	>95%
Transition Range	pH 5.8-7.6
	Yellow-Blue
Solubility 0.1% (95% EtOH)	Clear solution
Absorption maximum (pH 5.8) ?1max	430-435nm
Absorption maximum (pH 7.6) ?2max	615-618nm
Absorptivity (A1%/1cm at pH 5.8 at ?1max)	260-300
Absorptivity (A1%/1cm at pH 7.6 at ?2max)	470-520
Loss On Drying (110°C)	<3%

Remarks:

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BROMOCRESOL GREEN SODIUM SALT ACS GRADE

Product Short Description: BROMOCRESOL GREEN SODIUM SALT (ACS GRADE)

Product Technical Specification:

C.A.S. No.	62625-32-5
M.F.	C21H13Br4NaO5S
M.W.	720.00gm/mole

Specifications:

Dye Content (by Spectrophotometry)	>90%
Transition Range	pH 3.8-5.4
	Greenish yellow-Blue
Solubility 0.1% (Dist. Water)	Clear solution
Absorption maximum (pH 3.8) ?1max	438-443nm
Absorption maximum (pH 5.4) ?2max	615-618nm
Absorptivity (A1%/1cm at pH 3.8 at ?1max)	225-250
Absorptivity (A1%/1cm at pH 5.4 at ?2max)	500-540
Loss On Drying (110°C)	<5%

Remarks:

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BROMOCRESOL PURPLE ACS GRADE

Product Short Description: Bromocresol purple sodium salt has been also used as a pH indicator in the yeast culture media.

Product Technical Specification:

C.A.S. No.	115-40-2
M.F.	C21H16Br2O5S
M.W.	540.24gm/mole

Specifications:

Dye Content (by Spectrophotometry)	>95%
Transition Range	pH 5.2-6.8
	Yellow-Purple
Solubility 0.1% (95% EtOH)	Clear solution
Absorption maximum (pH 5.2) ?1max	427-431nm
Absorption maximum (pH 6.8) ?2max	588-590nm
Absorptivity (A1%/1cm at pH 5.2 at ?1max)	400-500
Absorptivity (A1%/1cm at pH 6.8 at ?2max)	1000-1100
Loss On Drying (110°C)	<1%

Remarks:

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BROMOCRESOL PURPLE SODIUM SALT ACS GRADE

Product Short Description: BROMOCRESOL PURPLE SODIUM SALT (ACS GRADE)

Product Technical Specification:

C.A.S. No.	62625-30-3
M.F.	C21H16Br2O5SNa
M.W.	562.22gm/mole

Specifications:

Dye Content (by Spectrophotometry)	>90%
Transition Range	pH 5.2-6.8
	Yellow-Purple
Solubility 0.1% (Dist. Water)	Clear solution
Absorption maximum (in 0.1N NaOH) ?max	588-590nm
Absorptivity (A1%/1cm in 0.1N NaOH at ?max)	>840
Loss On Drying (110°C)	<5%

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BROMOPHENOL BLUE ACS GRADE

Product Short Description: BROMOPHENOL BLUE (ACS GRADE)

Product Technical Specification:

C.A.S. No.	115-39-9
M.F.	C19H10Br4O5S
M.W.	669.99gm/mole

Specifications:

Dye Content (by Spectrophotometry)	>95%
Transition Range	pH 3.0-4.6
	Greenish Yellow-Blue
Solubility 0.1% (95% EtOH)	Clear solution
Absorption maximum (pH 3.0) ?1max	434-439nm
Absorption maximum (pH 4.6) ?2max	590-593nm
Absorptivity (A1%/1cm at pH 3.0 at ?1max)	350-385
Absorptivity (A1%/1cm at pH 4.6 at ?2max)	940-1000
Loss On Drying (110°C)	<1%

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BRILLIANT CRESYL BLUE 65%

Product Short Description: BRILLIANT CRESYL BLUE 65%

Product Technical Specification:

C.A.S. No.	81029-05-2
M.F.	C17H20CIN3O.1/2.ZnCl2
M.W.	385.96gm/mole

Specifications:

Dye Content (by Spectrophotometry)	>65%
Solubility 0.1% (50% EtOH)	Clear blue solution
Absorption Maximum (in 50% EtOH) ?max	625-630nm
Absorptivity (A1%/1cm,in 50% EtOH at ?max)	>1600
Loss On Drying (110°C)	<8%
Suitability for microscopy	Passes test

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BIEBRICH SCARLET

Product Short Description: Biebrich scarlet: an acid azo dye that is used as a biological stain for cytoplasm. Fluorescent labeling of white cells in tissue samples

Product Technical Specification:

C.A.S. No.	4196-99-0
CI NO.	26905
M.F.	C22H14N4Na2O7S2
M.W.	556.49gm/mole

Specifications:

Dye Content (by Spectrophotometry)	>70%
Solubility 0.1% (Dist. Water)	Clear solution
Absorption Maximum (Dist. Water) ?max	506-510nm
Absorptivity (A1%/1cm,in water at ?max on dried substance)	530-740
Loss On Drying (110°C)	<15%
Suitability for microscopy	Passes test

Remarks:

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BROMOCHLOROPHENOL BLUE SODIUM SALT

Product Short Description: BROMOCHLOROPHENOL BLUE SODIUM SALT

Product Technical Specification:

C.A.S. No.	102185-52-4
M.F.	C19H9Br2O5SNa
M.W.	603.06gm/mole

Specifications:

Dye Content (by Spectrophotometry)	>90%
Solubility (Dist. Water)	Clear solution
Transition Range	pH 3.0-4.5
	Greenish Yellow-Blue Violet
Absorption maximum (pH 3.0) ?1max	433-437nm
Absorption maximum (pH 4.5) ?2max	590-592nm
Absorptivity (A1%/1cm at pH 3.0 at ?1max)	370-400
Absorptivity (A1%/1cm at pH 4.5 at ?2max)	900-1000
Loss On Drying (110°C)	<5%

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BROMOPHENOL BLUE SODIUM SALT ACS GRADE

BROMOPYROGALLOL RED

BROMOTHYMOL BLUE ACS GRADE

BROMOCRESOL GREEN SODIUM SALT ACS GRADE

BROMOCRESOL PURPLE ACS GRADE

BROMOCRESOL PURPLE SODIUM SALT ACS GRADE

BROMOPHENOL BLUE ACS GRADE

BRILLIANT CRESYL BLUE 65%

BIEBRICH SCARLET

BROMOCHLOROPHENOL BLUE SODIUM SALT

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