AZURE II

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Product Short Description: AZURE II
Product Technical Specification:
C.A.S. No. 37247-10-2
M.F. C16H18N3S · C16H18N3S ·2 Cl
M.W. 625.68gm/mole

Specifications:

Colour Blue Powder
Solubility 0.1% (Dist. Water) Clear solution
Absorption Maximum (Dist. Water) ?max 655-660nm
Absorptivity(A1%/1cm,in water at ?max on dried substance) >1800
Loss On Drying (110°C) <12%
Suitability for microscopy Passes test
Remarks:
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AZURE II EOSINATE

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Product Short Description: AZURE II EOSINATE
Product Technical Specification:
C.A.S. No. 53092-85-6

Specifications:

Solubility 0.1% (MeOH) Clear solution
Absorption maximum (MeOH) ?1max 647-652nm
Absorption maximum (MeOH) ?2 max 520-525nm
Absorptivity (A1%/1cm in MeOH,at ?1max on dried substance) >1250
Absorptivity (A1%/1cm in MeOH,at ?2max on dried substance) >400
Loss On Drying (110°C) <10%
Remarks:
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BIEBRICH SCARLET

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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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BRILLIANT CRESYL BLUE 65%

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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
Remarks:
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BROMOCHLOROPHENOL BLUE SODIUM SALT

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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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BROMOCRESOL GREEN SODIUM SALT ACS GRADE

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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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BROMOCRESOL PURPLE ACS GRADE

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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%
Remarks:
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BROMOCRESOL PURPLE SODIUM SALT ACS GRADE

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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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BROMOPHENOL BLUE ACS GRADE

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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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BROMOPHENOL BLUE SODIUM SALT ACS GRADE

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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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BROMOPHENOL RED

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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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BROMOPYROGALLOL RED

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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%
Remarks:
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