Stains Indicator Reagents-69

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%

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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%

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Product Short Description: BROMOPHENOL RED

Product Technical Specification:

C.A.S. No.	2800-80-8
M.F.	C19H12Br2S
M.W.	512.19gm/mole

Specifications:

Dye Content (by Spectrophotometry)	>95%
Transition Range	pH 4.7-6.3
	Yellow-Purple
Solubility 0.1% (95% EtOH)	Clear solution
Absorption maximum (pH 4.7) ?1max	435-440nm
Absorption maximum (pH 6.3) ?2max	574-577nm
Absorptivity (A1%/1cm at pH 4.7 at ?1max)	340-370
Absorptivity (A1%/1cm at pH 6.3 at ?2max)	585-720
Loss On Drying (110°C)	<5%

Remarks:

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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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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%

Remarks:

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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%

Remarks:

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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%

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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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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%

Remarks:

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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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BROMOTHYMOL BLUE ACS GRADE

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BROMOCRESOL PURPLE SODIUM SALT ACS GRADE

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BROMOCRESOL GREEN SODIUM SALT ACS GRADE

BROMOCHLOROPHENOL BLUE SODIUM SALT

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