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Sigma-Aldrich Bromothymol Blue A.C.S. Re
List Price $138.00 Your Price $138.00
Sigma-Aldrich Bromothymol Blue A.C.S. Reagent - SIAL (Additional S&H Or Hazmat Fees May Apply)
NETA PART: SIAL-114413-25G
MFG.PART: 114413-25G
UNSPSC: 12171500
Manufacturer: Sigma-Aldrich
grade
ACS reagent
Quality Level
200
form
powder
composition
Dye content, 95%
color
pink-purple
visual transition interval
6.0-7.6, yellow to blue(passes test)
mp
200-202 °C ((392 - 396 °F) - lit.)
200-202 °C (lit.)
λmax
420 nm
ε (extinction coefficient)
≥17000 at 419-425 nm in methanol
≥8000 at 326-332 nm in methanol
≥9000 at 279-285 nm in methanol
storage temp.
room temp
Related Categories
Dry Dyes & Certified Stains
General description
Bromothymol Blue, also known as, dibromothymolsulfonphthalein is a sulfonated hydroxyquinone in acidic aqueous solutions. In alkaline solutions, this dye is present as a moderately sized dianion. It is also known as bromthymol blue and dibromothymolsulfonphthalein. It is a pH-sensitive dye that changes color from yellow to blue.
Application
Bromothymol blue dye serves as a pH indicator because of the precise color transition at neutrality. Other applications include:
- as a vital stain to trace the movement of fluids from the lymph and to define cell walls or nuclei under the microscope
- for the demonstration of fungal hyphae within plant roots
- in the assessment of the soluble acidity within single rice grains
- use in an agar gel medium for enumeration of Bacillus cereus
- as a component of several bacterial growth and detection substrates such as cystine lactose electrolyte deficient (CLED/BROLACIN); polymyxin pyruvate egg yolk mannitol bromothymol blue (PEMBA) and MacConkey agar.
wgk_germany
WGK 3
PPE
Eyeshields, Gloves, type N95 (US)
| SKU | SIAL-114413-25G |
|---|---|
| Supplier Part Number | 114413-25G |
| UM | EA |
| UNSPSC | 12171500 |
| Manufacturer | Sigma-Aldrich |
| Temperature | room temp |
| ProductLine | SIAL |
| Qty | 1 |
| MinOrderQty | 1 |
| Weight | 10.000000 |
| Lead Time | 9 |
| Hazardous | N |
| CAS Number | 76-59-5 |
| Energy Star | No |
| Green | No |
| Controlled | N |