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% |
|
Images:
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% |
|
Images:
BROMOPHENOL RED
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% |
|
Images:
BROMOPHENOL BLUE SODIUM SALT ACS GRADE
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% |
|
Images:
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% |
|
Images:
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% |
|
Images:
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% |
|
Images:
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% |
|
Images:
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% |
|
Images:
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 |
|
Images:
